PVCHECKs Rel. 2.

06 – 09/10/15

Safety, commissioning and performance tester of PV plants Page 1 of 6

The multifunction instrument PVCHECKs performs prompt and safe electrical checks
required for a PV system (DC section) and controls of the functionality of modules / strings
in accordance with IEC/EN62446 guidelines.

PVCHECKs: safety checks

PVCHECKs verifies continuity of protective conductors (and associated connections) and
measures insulation resistance of the active conductors on a module, a string, or a
photovoltaic field in accordance with IEC/EN62446 guidelines, so avoiding to use any
external switch to short-circuit positive and negative terminals.

Direct measurement of insulation resistance on a PV Field not connected to ground

HT ITALIA SRL Tel: +39-0546-621002 - Fax: +39-0546-621144

Via della Boaria 40 - 48018 Faenza (RA)- Italy email: export@htitalia.it - web: http://www.ht-instruments.com
 PVCHECKs Rel. 2.06 – 09/10/15

Safety, commissioning and performance tester of PV plants Page 2 of 6

PVCHECKs: functionality checks

PVCHECKs verifies functionality of a PV string in accordance with the IEC/EN62446
guidelines by measuring open circuit voltage and short-circuit current under operating
conditions up to 15A and extrapolating the results referred to the STC (by measuring the
solar radiation). Finally, it displays measurements as well as comparison with the PV
strings previously tested.

Test IVCK – Automatic measurement of Voc, Test IVCK – Automatic measurement of Voc, Isc
Isc + Insulation + Continuity on a PV + Insulation + Continuity on a PV Module/String
Module/String without irradiance with irradiance measurement with optional
measurement accessories SOLAR-02 and HT304N

PVCHECKs: performance checks

PVCHECKs analyses the performance of a PV array (DC) under the operating conditions
(connected to the inverter) displaying the generated power and the efficiency of the PV
plant in accordance with IEC/EN62446.

HT ITALIA SRL Tel: +39-0546-621002 - Fax: +39-0546-621144

Via della Boaria 40 - 48018 Faenza (RA)- Italy email: export@htitalia.it - web: http://www.ht-instruments.com
 PVCHECKs Rel. 2.06 – 09/10/15

Safety, commissioning and performance tester of PV plants Page 3 of 6

2. ELECTRICAL SPECIFICATIONS
Accuracy is calculated as  [ readings + (no. of digits) * resolution] at 23°C  5°C, relative humidity <80HR

2.1. PERFORMANCE TEST

DC Voltage
Range (V) Resolution (V) Uncertainty
5.0  199.9 0.1
 (1.0rdg + 2dgt)
200.0  999.9 0.5

DC current (by mean external clamp)

Range (mV) Resolution (mV) Uncertainty
-1100  -5
0.1  (0.5rdg + 0.6mV)
5  1100
DC current is always positive ;DC current zeroed if the related voltage value is < 5mV

FS DC clamp [A] Resolution [A] Minimum read value [A]

1< FS  10 0.001 0.05
10< FS  100 0.01 0.5
100< FS  1000 0.1 5

DC Power (Vmeas > 150V)

Clamp FS (A) Range (W]) Resolution (W) Uncertainty
1< FS  10 0.000k  9.999k 0.001k (1.5rdg + 3dgt)
(Imeas < 10%FS)
10< FS  100 0.00k  99.99k 0.01k
(1.5rdg)
100< FS  1000 0.0k  999.9k 0.1k (Imeas  10%FS)

Irradiance (by mean HT304N)

Range (mV) Resolution (mV) Uncertainty
1  40.0 0.02 (1.0rdg + 0.1mV)

Temperature (by mean PT300N)

Range (°C) Resolution (°C) Uncertainty
-20.0  100.0 0.1  (1.0rdg +1°C)

HT ITALIA SRL Tel: +39-0546-621002 - Fax: +39-0546-621144

Via della Boaria 40 - 48018 Faenza (RA)- Italy email: export@htitalia.it - web: http://www.ht-instruments.com
 PVCHECKs Rel. 2.06 – 09/10/15

Safety, commissioning and performance tester of PV plants Page 4 of 6

2.2. FUNCTIONALITY TEST

DC Voltage @ OPC
Range (V) Resolution (V) Uncertainty
5.0  199.9 0.1
(1.0rdg+2dgt)
200  999 1
Minimum VPN voltage to start the test: 15V

DC Current @ OPC
Range (A) Resolution (A) Uncertainty
0.10  15.00 0.01 (1.0rdg+2dgt)

DC Voltage @ STC
Range (V) Resolution (V) Uncertainty
5.0  199.9 0.1
(4.0rdg+2dgt)
200  999 1

DC Current @ STC
Range (A) Resolution (A) Uncertainty
0.10  15.00 0.01 (4.0rdg+2dgt)

Irradiance (by mean HT304N)

Range (mV) Resolution (mV) Uncertainty
1  40.0 0.02 (1.0rdg + 0.1mV)

Temperature (by mean PT300N)

Range (°C) Resolution (°C) Uncertainty
-20.0  100.0 0.1  (1.0rdg +1°C)

HT ITALIA SRL Tel: +39-0546-621002 - Fax: +39-0546-621144

Via della Boaria 40 - 48018 Faenza (RA)- Italy email: export@htitalia.it - web: http://www.ht-instruments.com
 PVCHECKs Rel. 2.06 – 09/10/15

Safety, commissioning and performance tester of PV plants Page 5 of 6

2.3. SAFETY TEST

Continuity Test (LOW)
Range [] Resolution [] Uncertainty
0.00  1.99 0.01
2.0  19.9 0.1 (2.0rdg + 2dgt)
20  199 1
Test current >200mA DC up to 2 (test leads included), Resolution 1mA, Uncertainty (5.0%rdg + 5dgt)
Open loop voltage 4 < V0 < 10V

Insulation Test (M) – Mode TIMER

Test voltage [V] Range [M] Resolution [M] Uncertainty
0.01  1.99 0.01
250, 500, 1000 2.0  19.9 0.1 (5.0rdg+ 5dgt)
20  199 1
Open voltage: < 1.25 * nominal test voltage
Short circuit current: <15mA (peak) for all test voltages
Generated voltage Resolution 1V, uncertainty (5.0%rdg + 5dgt) @ Rmis> 0.5% FS
Test current > 1mA with load = 1k x Vnom

Insulation Test (M) – Mode FIELD (*), STRING (**)

Test voltage [V] Range [M] Resolution [M] Uncertainty (***)
0.1  1.9 0.1
250
2  99 1
0.1  1.9 0.1
500 (20.0rdg+ 5dgt)
2  99 1
0.1  1.9 0.1
1000
2  99 1
(*) For FIELD mode if VPN >1V the minimum voltage VEP and VEN for the calculation of Ri(+) and Ri(-) is 1V
(**) For STRING mode minimum VPN voltage to start the test: 15V
Open voltage <1.25 x nominal test voltage
Short circuit current < 15mA (peak) for each test voltage
Generated voltage resolution 1V, accuracy (5.0%reading + 5digits) @ Rmis> 0.5% FS
Rated current measured > 1mA with 1k @ Vnom


max R  , R  
 100
(***) For FIELD mode: add 5 dgts to the accuracy if 
min R  , R  

HT ITALIA SRL Tel: +39-0546-621002 - Fax: +39-0546-621144

Via della Boaria 40 - 48018 Faenza (RA)- Italy email: export@htitalia.it - web: http://www.ht-instruments.com
 PVCHECKs Rel. 2.06 – 09/10/15

Safety, commissioning and performance tester of PV plants Page 6 of 6

3. GENERAL SPECIFICATIONS
DISPLAY AND MEMORY:
Features: 128x128pxl custom LCD with backlight
Memory: max 999 test

POWER SUPPLY:
PVCHECK internal power supply: 6x1.5V alkaline batteries type LR6, AA, AM3, MN 1500
Battery life: approx.120 hours (DC efficiency test)
SOLAR-02 power supply: 4x1.5V alkaline batteries type AAA LR03
SOLAR-02 max recording time (@ IP=5s): approx. 1.5h

OUTPUT INTERFACE
PC communication port: optical/USB
Interface with SOLAR-02: wireless RF communication (max distance 1m)

MECHANICAL FEATURES
Size (L x W x H): 235 x 165 x 75mm
Weight (batteries included): 1.2kg

ENVIRONMENTAL CONDITIONS:
Reference temperature: 23°C  5°C
Working temperature: 0°  40°C
Working humidity: <80%HR
Storage temperature (remove the batteries): -10  60°C
Storage humidity: <80%HR

GENERAL REFERENCE STANDARDS:

Safety: IEC/EN61010-1
EMC: IEC/EN61326-1
Safety of measurement accessories: IEC/EN61010-031
Measurements: IEC/EN62446 (PV performance, IVCK)
IEC/EN 61557-1, 2, -4 (LOW, M))
Insulation: double insulation
Pollution degree: 2
Overvoltage category: CAT III 300V to ground
Max 1000V DC among inputs P, N, E, C
Max height of use: 2000m

This instrument complies with the requirements of the European Low Voltage Directives 2006/95/EC
(LVD) and EMC 2004/108/EC
This instrument satisfies the requirements of 2011/65/EU (RoHS) directive and 2012/19/EU (WEEE)
directive

HT ITALIA SRL Tel: +39-0546-621002 - Fax: +39-0546-621144

Via della Boaria 40 - 48018 Faenza (RA)- Italy email: export@htitalia.it - web: http://www.ht-instruments.com