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Sor 6547

The document consists of multiple calibration certificates issued for welding machines belonging to Daeshin Plant Construction Co., with calibration conducted on October 30, 2024, and valid until October 29, 2025. Each certificate details the calibration results, including applied and measured values, deviations, and uncertainties, all adhering to ISO 17025 standards. The certificates confirm that the instruments were used and in good condition upon receipt, with no adjustments made prior to calibration.
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© © All Rights Reserved
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0% found this document useful (0 votes)
16 views25 pages

Sor 6547

The document consists of multiple calibration certificates issued for welding machines belonging to Daeshin Plant Construction Co., with calibration conducted on October 30, 2024, and valid until October 29, 2025. Each certificate details the calibration results, including applied and measured values, deviations, and uncertainties, all adhering to ISO 17025 standards. The certificates confirm that the instruments were used and in good condition upon receipt, with no adjustments made prior to calibration.
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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CALIBRATION CERTIFICATE

Date: 30/October/2024 Certificate No: LIF241030-01

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008071 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.50 0.50 1

200 200.50 0.50 1


APPLIED
VALUES 300 300.30 0.30 1

400 400.50 0.50 1

500 500.20 0.20 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-02

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008074 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.30 0.30 1

200 200.40 0.40 1


APPLIED
VALUES 300 300.50 0.50 1

400 400.60 0.60 1

500 500.70 0.70 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-03

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008075 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-04

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008076 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.10 0.10 1

200 200.20 0.20 1


APPLIED
VALUES 300 300.30 0.30 1

400 400.40 0.40 1

500 500.50 0.50 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-05

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008077 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.10 0.10 1

200 200.20 0.20 1


APPLIED
VALUES 300 300.30 0.30 1

400 400.40 0.40 1

500 500.50 0.50 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-06

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008073 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.10 0.10 1

200 200.20 0.20 1


APPLIED
VALUES 300 300.30 0.30 1

400 400.40 0.40 1

500 500.50 0.50 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-07

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008068 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.10 0.10 1

200 200.20 0.20 1


APPLIED
VALUES 300 300.30 0.30 1

400 400.40 0.40 1

500 500.50 0.50 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-08

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-1508050

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.50 0.50 1

200 200.25 0.25 1


APPLIED
VALUES 300 300.30 0.30 1

400 400.20 0.20 1

500 500.70 0.70 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-09

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : INVERTER DC TIG Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-1508045

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.30 0.30 1

200 200.45 0.45 1


APPLIED
VALUES 300 300.60 0.60 1

400 400.50 0.50 1

500 500.30 0.30 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-10

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : INVERTER DC TIG Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008075

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.30 0.30 1

200 200.45 0.45 1


APPLIED
VALUES 300 300.60 0.60 1

400 400.50 0.50 1

500 500.30 0.30 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-11

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 0-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008079 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 44070242WS AW-21124899 18/12/2022 17/12/2023

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.50 0.50 1

200 200.50 0.50 1


APPLIED
VALUES 300 300.50 0.50 1

400 400.50 0.50 1

500 500.50 0.50 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-12

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 0-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-1508056 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.50 0.50 1

200 200.50 0.50 1


APPLIED
VALUES 300 300.50 0.50 1

400 400.50 0.50 1

500 500.50 0.50 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-13

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-1508075 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.50 0.50 1

200 200.50 0.50 1


APPLIED
VALUES 300 300.30 0.30 1

400 400.50 0.50 1

500 500.20 0.20 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-14

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 220NA Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 0-220 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : DSWPM-001 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

50 50.40 0.40 1

100 100.50 0.50 1


APPLIED
VALUES 150 150.60 0.60 1

200 200.70 0.70 1

220 220.80 0.80 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-15

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : DYMT Calibration Date : 30/Oct/2024
Model : 500-IT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2008067 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.50 0.50 1

200 200.50 0.50 1


APPLIED
VALUES 300 300.30 0.30 1

400 400.50 0.50 1

500 500.20 0.20 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-16

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310051 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-17

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310055 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-18

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310057 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-19

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310058 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-20

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310060 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-21

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310062 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-22

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310064 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-23

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310068 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-24

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310071 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.
CALIBRATION CERTIFICATE
Date: 30/October/2024 Certificate No: LIF241030-25

Client Name : DAESHIN PLANT CONSTRUCTION CO.


Unit under Calibration : Welding Machine Job No. : LIF/JN/24/6547
Manufacturer : ECHO ELECTRONIC Co., Ltd Calibration Date : 30/Oct/2024
Model : TIG-500DT Calibration Expiry Date : 29/Oct/2025
Indication Type : Analog Full Range : 5-500 amps
Reference Procedure No. : LIF/CP/E/02 Laboratory Temperature : 23.8 Deg C
Serial No. : T-2310072 Relatives Humidity : 45% RH

Calibration Reference Standard


The UUC has been calibrated against:
Equipment Name Serial No of Equipment Certificate No Calibration Date Due Date
Digital Clamp Meter 221216670 NAYA-CL-CM-0624164 01/June/2024 31/May/2025

Calibration Results

Applied Value (A) Measured Value (M) Deviation (M-A) Uncertainty (U)

amps amps amps ± amps

100 100.20 0.20 1

200 200.30 0.30 1


APPLIED
VALUES 300 300.40 0.40 1

400 400.50 0.50 1

500 500.60 0.60 1

Based on ANSI/NCSL Z540-1, The reported uncertainty is the expanded uncertainty with k=2 according to the ISO/IEC "Guide expansion of
uncertainty in measurement" providing a level of confidence of approximately 95%.

Note:
1. Yes instrument is "used" and in good condition on receiving.
2. No Instrument was new on receiving.
3. No Instrument is adjusted and post adjustment values are reported.
4. Yes No adjustment is carried out and measurements in this certificate are as received figures.

Comments:
The quoted Uncertainty refers only to the measured value and does not carry any implication regarding the long-term stability of the
instrument.

Calibrated By Approved By

SHAHID ABBAS ABDUL HASEEB

This certificate is issued in accordance with the requirements of ISO 17025. It provides traceability of measurements to recognized
national/international Standards and to units of measurements realized to recognized national/international standard laboratories. This certificate may
not be reproduced, except in full, without the prior written approval of the laboratory.

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