D-1034-157 CX506a（和・英）取扱説明書

CX506a
MULTITESTER

INSTRUCTION MANUAL
D-1034-157 CX506a（和・英）取扱説明書

CONTENTS

[1] SAFETY PRECAUTIONS:Before use, read the following safety precautions 001
1-1 Warning Instruction for safe use 001
1-2 Explanation of Warning Symbols 002
1-3 Overload Protections 002
1-4 Influence of the electromagnetic field 002
[2] APPLICATION AND FEATURES 003
2-1 Application 003
2-2 Features 003
[3] NAME OF FUNCTIONS 003
[4] SCALE READING 004
[5] DESCRIPTION OF FUNCTIONS 005
5-1 Selections, adjusters and switches 005
5-2 How to Use the Stand 005
[6] MEASUREMENT PROCEDURE 006
6-1 Start -up Inspection 006
6-2 How to select an appropriate range 006
(Selection of an appropriate range)
6-3 Preparation for Measurement 006
6-4 Voltage Measurement 008
6-4-1 DCV Measurement ( ) 008
6-4-2 ACV Measurement ( ) 009
6-5 DCA Measurement ( ) 010
6-6 Resistance Measurement 011
6-6-1 Resistance Measurement ( Ω ) 011
6-6-2 Terminal to Terminal Current ( LI ) 012
6-7 Capacitance Measurement ( ) 013
6-7-1 C1,C2 Range 013
6-7-2 C3 Range 015
6-8 Transistor Measurement 016
6-8-1 ICEO Measurement 016
D-1034-157 CX506a（和・英）取扱説明書

6-8-2 hFE Measurement 017

6-9 DC High Voltage measurement 018
6-10 End of Measurement 018
[7] MAINTENANCE 019
7-1 Maintenance and Inspection 019
7-2 Calibration 019
7-3 How to Replace Battery and Fuse 019
7-4 Cleaning and Storage 021
[8] AFTER-SALE SERVICE 021
8-1 Repair 021
8-2 For Information of Enquiries 021
8-3 Sanwa Web Site 021
[9] SPECIFICATIONS 022
9-1 General Specification 022
9-2 Optional Accessories 022
9-3 Measurement Range and Accuracy 023
D-1034-157 CX506a（和・英）取扱説明書

[1] SAFETY PRECAUTIONS:Before use, read the following safety precautions

This instruction manual explains how to use your multitester

CX506a, safely.
Before use, please read this manual thoroughly. After reading it,
keep it together with the product for reference to it when necessary.
The instruction given under the heading“ WARNING” “ CAUTION”
must be followed to prevent accidental burn or electrical shock.

1-1 Warning Instruction for Safe Use

WARNING
To ensure that the meter is used safely, Be sure to observe the
instruction when using the instrument.
Please be careful that the protection circuit may be undermined by
unjustifiable usage that does not follow the guidelines in the
instruction manual.

11. Never use the meter on the electric circuits that exceed 6kVA.
12. Pay special attention when measuring the voltage of AC 33
Vrms (46.7V peak) or DC 70V or more to avoid injury.
13. Never apply an input signals exceeding the maximum rating
input value.
14. Never use the meter for measuring the line connected with
equipment (i.e. motors) that generates induced or surge
voltage since it may exceed the maximum allowable voltage.
15. Never use the meter if the meter or test leads are damaged or
broken.
16. Never use uncased meter.
17. Be sure to use a fuse of the specified rating or type. Never use a
substitute of the fuse or never make a short circuit of the fuse.
18. Always keep your fingers behind the finger guards on the
probe when making measurements.
19. Be sure to disconnect the test pins from the circuit when
changing the function or range.
10. Before starting measurement, make sure that the function and
range are properly set in accordance with the measurement.
11. Never use the meter with wet hands or in a damp environment.
12. Never open rear case except when replacing batteries or fuse.
Do not attempt any alteration of original specifications.
13. To ensure safety and maintain accuracy, calibrate and check
the tester at least once a year.
14. Indoor use.

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D-1034-157 CX506a（和・英）取扱説明書

1-2 Explanation of Warning Symbols

The meanings of the symbols used in this manual and attached to
the product are as follows.
: Very important instruction for safe use.
・The warning messages are intended to prevent accidents to
operating personnel such as burn and electrical shock.
・The caution messages are intended to prevent damage to the
instrument.
: DC : Diode
: AC : Ground
Ω : Resistance ＋ : Plus
: Capacitance − : Minus
hFE : DC Current Amplification Factor : Fuse
: Fuse & Diode Protection : Double insulation

1-3 Overload Protections

Functions Input terminals Maximum overload protection input (within 5s)
DCV 1000
DC・AC 1000V or peak max 1400V
ACV 750
DCV 120/300 DC・AC 750V or peak max 1100V
ACV 3/12/30 DC・AC 200V or peak max 280V
DCV 120mV
＋，
− DC･AC 1mA DC･AC 100V
30µ/0.3m
or
DCA 3m DC･AC 10mA
peak max 140V
30m/0.3 DC･AC 0.5A
Ω X1∼X10k
DC･AC 50V or peak max 75V
C1/C2/C3
・EMITTER
hFE − ・COLLECTOR DC･AC 50V or peak max 75V
・BASE

1-4 Influence of the electromagnetic field

ACV and Capacitance measurement functions may not work
properly in the electromagnetic field over 10kHz.

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D-1034-157 CX506a（和・英）取扱説明書

[2] APPLICATION AND FEATURES

2-1 Applications
This instrument is portable multimeter designated for
measurement of weak current circuit.

2-2 Features
High-Sensitivity(DC50kΩ /V)meter
Capacitance measurement by built-in transistor oscillator
IEC61010-1 MEASUREMENT CAT- Ⅲ MAX. 600V
Wide measurement functions 26-ch switch
Transistor check function
Polarity reversal switch for DCV and DCA

[3] NAME OF FUNCTIONS

Scale
Pointer
0Ω・C∞adjuster
Meter zero position
adjuster power indicator
Function/Range
selector function power
switch
− input terminal (capacitance switch)
(collector connecting
terminal) Polarity reversal switch
Base connecting Stand
terminal
Panel ＋ input terminal (emitter connecting
Rear case terminal)

Finger guard
Test pin Test probe (Red)
Plug

Test probe (Black)

Clip
Plug
Test lead (TL-21) Clip lead (CL-506)

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D-1034-157 CX506a（和・英）取扱説明書

[4] SCALE READING




 






Range Multiplier Range Multiplier Range Multiplier

Ω X 10k X 10k DCV 300 X 10  C1 X1
Ω X 1k X 1k DCV 30 X1  C2 X1
 Ω X 100 X 100 DCV 3 X 0.1  hFE X1
Ω X 10 X 10 ACV 300 X 10  C3 X1
ΩX1 X1 ACV 30 X1 80mA X 10

DCV 1000 X 10 DCmA 30µ X1 8mA X1
DCV 120 X1 DCmA 0.3 X 0.01 800µA X 100
DCV 12 X 0.1 DCmA 3 X 0.1 80µA X 10
 DCV 120m X1 DCmA 30 X1
ACV 3 X1
ACV 750 X 10 DCmA 0.3A X 0.01
ACV 120 X1
*Please read the indication from the right over
ACV 12 X 0.1 the pointer.

How to read the scale value:

Function Range scale No. Conversion Reading
Ω X 100  89 X 100 8900[Ω]＝8.9[kΩ]
DCV 120V  36 X 100 36 [V]
ACV 3V
1.17 X 100... 1.17 [V]
DCmA 3mA  .9 X 0.1 0.9 [mA]

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D-1034-157 CX506a（和・英）取扱説明書

[5] DESCRIPTION OF FUNCTIONS

5-1 Selectors, adjusters and switches

Function/Range selector
Turn the instrument on by selecting any measurement range.
Meter zero position adjuster
Turn the adjuster to have the pointer align with the zero line.
(scale left edge)
0Ω・C∞Adjuster
For resistance or hFE measurement, turn the adjuster to have
the pointer align with the zero line (0Ω) while test leads are
shorted.
For capacitance measurement, turn the adjuster to have the
pointer align with ∞ of each C scale while test leads are
shorted, with pressing (locking) the capacitance switch.
Capacitance Switch
Press the switch to measure capacitance at C1 or C2 range. To
lock the switch at ON position, press and turn it to right approx
45 degree.
Power Indicator
The indicator (LED) is blinked when power is on, for capacitance
measurement.
Polarity reversal switch
Shift the switch to minus (−) to reverse polarity for -DCV or -
DCA measurement.

5-2 How to Use the Stand

Please use the stand that there
is on the side of rear case like a
figure.

How to Use the Stand

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D-1034-157 CX506a（和・英）取扱説明書

[6] MEASUREMENT PROCEDURE

6-1 Start-Up Inspection

WARNING
1. Never use meter if the meter or test leads are damaged or
broken.
2. Make sure that the test leads are not cut or otherwise damaged.

6-2 How to select an appropriate range (Selection of a appropriate range)

For voltage or current measurements, select a range which is
higher than the value to be measured. For example,when
measuring 9V, select 12V range. If the value to be measured is
uncertain, select maximum range.
For Ω measurement, select a range that the pointer can be
read by the center of scale.

6-3 Preparation for measurements

Zero position adjustment.
Shift the polarity reversal switch to ＋ position.
Select a proper range and set the switch for measurements.

Zero position

Zero position adjustment

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D-1034-157 CX506a（和・英）取扱説明書

START

Main unit Damaged

and test leads
damaged ?

No damaged Stop using it and

have it repaired.
Check continuity of
test leads and fuse.

Connect the black plug Short the red and Stop using it and
of the test lead to the black test pins. have it repaired.
− terminal.

Connect the red plug

of the test lead to the
＋ terminal. Did the
NO
pointer move to
right side ?
Set the function range
switch at Ω x 1 range.
Replace the battery
YES and fuse, and starting
Set the switch to No problem. to  once more.
＋ position. Start measurement.




 

 

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D-1034-157 CX506a（和・英）取扱説明書

6-4 Voltage Measurement

WARNING
1.Never apply an input signals exceeding the maximum
rating input value.
2.Be sure to disconnect the test pins from the circuit when
changing the function / range.
3.Select the maximum range and measure, if the value to be
measured is uncertain.
4.Always keep your fingers behind the finger guards on the
probe when making measurements.

6-4-1 DCV Measurement ( ) Max. measurement value 1000VDC

1) Application
Measuring batteries or DC circuits.
2) Measuring range: 120m/3/12/30/120/300/1000 (7ranges)
 
 

Battery



 

3) Measurement procedure
Shift the polarity reversal switch to ＋ position.
 Connect the black plug of the test lead to the − input
terminal and the red plug to the ＋ input terminal.
 Set the function/range selector to an appropriate DCV
range.
Apply the black test pin to the negative potential side of the
circuit to measure and the red test pin to the positive
potential side.
Read the pointer on V・A scale.
After measurement, remove the red and black test pins from
the circuit measured.

When the pointer moves to the“−”side, shift the polarity

reversal switch to the“−”position.

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D-1034-157 CX506a（和・英）取扱説明書

6-4-2 ACV Measurement ( ): Max.measurement value 750VAC

1) Application
Measures sine-wave AC voltages such as lighting voltages.
2) Measuring range: 3/12/30/120/300/750 (6ranges)


 


Outlet



 

3) Measurement procedure
Shift the polarity reversal switch to ＋ side.
 Connect the black plug of the test lead to the − input
terminal and the red plug to the ＋ input terminal.
 Set the function/range selector to an appropriate ACV
range.
Apply the black and red test pin to measuring circuit.
Read the pointer on V・A scale.
The AC3V range only uses the“AC3V”scale.
After measurement, remove the red and black test pins
from the circuit measured.

When measuring non-sine wave ACV, measuring values

may have errors according to the contortion of the wave.
Band width.
40Hz-30kHz at 3,12V range
40Hz-10kHz at 30V or above ranges
Values measured at 750V shall be read by decupling (X10)
the scale of 0-120. But for the safety, do not measure any
circuits that exceed 6kVA.

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D-1034-157 CX506a（和・英）取扱説明書

6-5 DCA Measurement ( ): Max. measuremet value 0.3ADC

WARNING
1. Never apply voltage to
○ Correct × Incorrect
the input terminals.
2. Be sure to make a series
Power Power
connection via load. Load Load
3. Do not apply an input
exceeding the maximum
rated current to the input
terminals.
1) Application
Current in batteries or DC circuit is measured.
2) Measuring range: 30µ/0.3m/3m/30m/0.3A (5ranges)
3) Measurement procedure
Shift the polarity reversal switch to ＋ position.
 Connect the black plug of the test lead to the − input
terminal and the red plug to the ＋ input terminal.
 Set the function/range selector to an appropriate DCA
range.
Apply the black test pin to the negative potential side of the
circuit to measure and the red test pin to the positive
potential side.
Read the pointer on V・A scale.
After measurement, remove the red and black test pins from
the circuit measured.


Resistor Battery
 




 

At current measurement, according to the size of internal

resistance of the current range, measuring value will be
smaller than actual current.
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D-1034-157 CX506a（和・英）取扱説明書

6-6 Resistance Measurement Max. measurement value 50MΩ

WARNING
Never apply voltage to the input terminals.

6-6-1 Resistance Measurement ( Ω )

1) Application
Resistance of resistors or circuits are measured.
2) Measuring range: X1/X10/X100/X1k/X10k (5ranges)
3) Measurement procedure
Shift the polarity reversal switch to ＋ side.
 Connect the black plug of the test lead to the − input
terminal and the red plug to the ＋ input terminal.
Set the function/range selector to an appropriate Ω range.
Short the test pins, and adjust 0 Ω・C ∞ by turning adjuster
to have the pointer align with 0 line.
Apply the black and red test pin to the measured resistance.
Read the pointer on Ω scale.
After measurement, remove the red and black test pins from
the resistor measured.

At Ω range, the 
polarity of ＋/− is
reverse from that
marked on the body  Resistor 
panel.
Be sure to use the 
rated fuse for the
instrument. In case 

a fuse other than
the rated one is  
used, indication
errors may occur,
and/or circuit protection is become unable.
Operating voltage for Ω range of this multitester is 3V, so
lighting test of LED can be performed. Appropriate range is
Ω x 10 range.
If the pointer does not move to 0 line even when the 0 Ω
adjuster is turned fully, replace the internal batteries to new
ones.

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D-1034-157 CX506a（和・英）取扱説明書

6-6-2 Terminal to Terminal Current (LI)

Terminal-to-Terminal Current is the current that runs between
− and ＋ terminals when measuring resistance. There may be
some cases that the impedance of measured object varies,
especially when measuring semi-conductors, due to self-
heating caused by current running while measuring resistance.
The maximum LI values are printed on the body panel, at right
side of each range. Readings at each range shall be converted
by multiplying the values (shown below).
x1k (80µA) Range : LI scale x10, and read as µA.
x100 (800µA) Range : LI scale x100, and read as µA.
x10 (8mA) Range : Simply read as mA.
x1 (80mA) Range : LI scale x10, and read as mA.

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D-1034-157 CX506a（和・英）取扱説明書

6-7 Capacitance Measurement ( )

WARNING
1.Never apply voltage to the input terminals.
2.Discharge the capacitance before measuring it.

6-7-1 C1,C2 ranges

1) Application
Measurement of capacitance
2) Measuring range
C1 range : 50pF∼0.2µF
C2 range : 0.01∼20µF
3) Measurement procedure
Shift the polarity reversal switch to ＋ position.
 Connect the black plug of the test lead to the − input
terminal and the red plug to the ＋ input terminal.
Set the function/range selector to an appropriate C1 or C2
range.
Push the function power switch. (See 5-1)
Then, the power indicator blinks.
Short the test pins and turn the 0 Ω・C ∞ adjuster to have
the pointer align exactly with ∞ of C1or C2 scale.
Apply the black and red test pin to the measured capacitor.



 Capacitor





 

Read the pointer on C1or C2 scale.

After measurement, remove the red and black test pins from
the object measured.

Turn off the function power switch. (See 5-1)

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D-1034-157 CX506a（和・英）取扱説明書

Note
Measuring frequency
C1range : approx. 900Hz C2range : approx. 800Hz
Measuring voltage
C1range : approx.8.0V (peak)/When 200pF is measured
C1range : approx.0.5V (peak)/When 0.05µF is measured
C2range : approx.4.0V (peak)/When 0.1µF is measured
C2range : approx.0.7V (peak)/When 5.0µF is measured
Application
・Test of the cord (Use the C1 range)

Cx 1

Wire breaking point

Cx 2

Cx 1＞Cx 2

Continuity or open-wire check of parallel cords, as shown in Fig,

can be done by measuring capacitance between the core wires
(conductors) as a comparison test.
Longer cords are easier to check the detection of the open-wire
because the capacity value lost by leakage between the wires is
proportioned to the length of the wires.

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D-1034-157 CX506a（和・英）取扱説明書

6-7-2 C3 range
1) Application
Measured large capacitor
2) Measuring range: C3 range: 1∼2000µF
3) Measurement procedure
Shift the polarity reversal switch to ＋ side.
 Connect the black plug of the test lead to the − input
terminal and the red plug to the ＋ input terminal.
Set the function/range selector to C3 range.
Discharge the capacitance before measuring it.
Short the test pins and turn the 0 Ω・C ∞ adjuster to have
the pointer align exactly with ∞ of C3 scale.
Apply the test pins to the measuring capacitor. Then, read
the maximum reading on the C3 scale.

C3 


 Capacitor
 

C3 

   Wire

The pointer moves to right direction scale by the charge

current to the capacitor. However, the pointer starts gradual
returning from a certain point. Read the indicated maximum
value on C3 scale.
After measurement, remove the red and black test pins
from the object measured.

Pay attention to the polarity (＋/−) of the capacitor.

(Connect ＋side of the capacitor to black test pin.)
It is not possible to measure the electric double layer
capacitor.

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D-1034-157 CX506a（和・英）取扱説明書

6-8 Transistor Measurement

WARNING
Never apply voltage to the input terminals.

6-8-1 ICEO Measurement

1) Application
Measuring Iceo of transistor
2) Measuring range: hFE range
3) Measurement procedure
 Connect the black plug of the test lead to the − input
terminal and the red plug to the ＋ input terminal.
Set the function/range selector to hFE function.
 Set the polarity reversal switch to either NPN or PNP
position according to the transistor (hereinafter simply called
“TR.”) to be measured. (NPN-TR: NPN position PNP-TR:
PNP position)
Short the test pins and turn the 0 Ω・C ∞ adjuster to have
the pointer align exactly with 0 line of Ω scale.
Connect the emitter of TR and the collector of TR to each
measuring terminal (pin of test lead).
Read the pointer on LI scale. (X10mA)
After measurement, remove the red and black test pins from
the TR.

Good or Bad shall be determined by comparison to

standard TR.
Except large power TR, reading of the ICEO of normal silicon
TR is almost 0mA.
Case of NPN-TR 


transistor
 
 

E: emitter
  B: base
C: collector

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D-1034-157 CX506a（和・英）取扱説明書

6-8-2 hFE Measurement

1) Application
Measuring hFE of transistor
2) Measuring range: hFE range
3) Measurement procedure
Connect the black plug of the test lead to the COLLECTOR
(−input) terminal and the red plug to the EMITTER (＋
input) terminal.
Connect the black plug of the clip lead to the BASE terminal.
Set the function/range selector to hFE function.
 Set the polarity reversal switch to either NPN or PNP
position according to the transistor (hereinafter simply called
“TR.”) to be measured. (NPN-TR: NPN position PNP-
TR:PNP position)
Short the test pins and turn the 0 Ω・C ∞ adjuster to have
the pointer align exactly with 0 line of Ω scale.
Connect the base of TR to the base terminal (clip lead).
Connect the emitter of TR and the collector of TR to each
measuring terminal (pin of test lead).
Read the pointer on hFE scale.

After measurement, remove the test pins and the clip lead
from the TR.

Case of NPN-TR


transistor


 

E: emitter
   B: base
C: collector

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D-1034-157 CX506a（和・英）取扱説明書

6-9 DC High Voltage measurement (HV) (Oputinal HV Probe)

Max. measurement value 30k DC
WARNING
1.The probe is designed for the measurement of very small
direct current circuit. Never use the probe to measure
high voltage in power lines, such as transmission and
distribution lines; it is very dangerous.
2. Never apply input signals that exceed 30kV.
3. Be sure to disconnect the test pins from the circuit when
changing the function.
4. Always keep your fingers behind the finger guards on the
probe when making measurements.

1) Application
The probe is suitable for measuring voltage of high impedance
circuits, such as CRT anode voltage of TV sets.
2) Measuring range:
 CRT
HV PROBE (DC120mV)
Anode
3) Measurement procedure
 Shift the polarity 
reversal switch to ＋
position.
Connect the black plug 
of the HV Probe to the Earth line
−input terminal and 
the red plug to the ＋
  
input terminal.
 Set the function/range
selector to HV PROBE position.
First, connect the clip (black) of the probe to the earth line (−) in
the circuit to be measured, and then apply the measuring pin on
the probe body to your measuring point.
Read the pointer on V・A (0∼30) scale as kV.
 After measurement, remove the measuring pin from the
measured circuit, and then remove the clip.

6-10 End of Measurement

When measurement is end, be sure to return the function/range
selector to the OFF position.

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D-1034-157 CX506a（和・英）取扱説明書

[7] MAINTENANCE
WARNING
1.This section is very important for safety. Read and understand
the following instruction fully and maintain your instrument
properly.
2. The instrument must be calibrated and inspected at least once a
year to maintain the safety and accuracy.

7-1 Maintenance and inspection

1) Appearance
Is the appearance not damaged by falling ?
2) Test leads and fuse
Are the test leads not damaged ?
Are the core wire not exposed at any place of the test leads ?
Make sure that the test leads are not cut, referring to the
section 6-1.

If your instrument fails any of above check, do not use it, and have it
repaired or replace it to new one.

7-2 Calibration
The manufacturer may conduct calibration and inspection. For
more information, please contact the dealer or manufacturer.

7-3 How to Replace Battery and Fuse

WARNING
1. If the rear case is removed with input applied to the input
terminals, you may get electrical shock. Before starting the
work, always make sure that no inputs is applied.
2. Be sure to use a fuse that has the same rating so as to
ensure safety and performance of tester.
3. When removing the rear case do not touch the internal parts
or wire with hand.

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D-1034-157 CX506a（和・英）取扱説明書

＜How to replace the battery or fuse＞

Remove the rear case screw with a screwdriver.
Remove the rear case.
Take out the battery or fuse and replace it with a new one.
Attach the rear case and fix it with the screw.
Check and see whether or not indications of respective ranges
are normal.

Spare fuse
Battery (6F22) Battery (R6)
9V X1 1.5V X2

9V
1.5V

Fuse

Fuse of the specified rating and type(Parts No. F1176)

500mA/250V φ5 X 20mm Ceramic tube Fast acting fuse.
Blowout capacity : 1500A

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D-1034-157 CX506a（和・英）取扱説明書

7-4 Cleaning and Storage

CAUTION
1. For cleaning, wipe lightly with a soft, and either dry or slightly
water-dampended cloth. Do not use volatile solvent such as
thinner or alcohol for panel, case, and meter cover.
2. The panel and the case are not resistant to heat. Do not place
the instrument near heat-generating devices (such as a
soldering iron).
3. Do not store the instrument in a place where it may be subjected
to vibration or from where it may fall.
4. For storing the instrument, avoid hot, cold or humid places or
places under direct sunlight or where condensation is
anticipated.

Following the above instructions, store the instrument in good

environment. (See 9-1)

[8] AFTER-SALE SERVICE

8-1 Repair
If the multimeter fails during use, check the following items before
sending it for repair.
Is the battery not exhausted ?
Are the test leads not disconnected ?
Is the fuse not blown ?
We repair a defective product at cost. When mailing it to us for
repair, do not use the same cardboard box in which it was
delivered to you because it may receive damage in transit. Please
send it in a box at least five times larger than the original box with
enough cushioning material stuffed around it.

8-2 For Information or Enquiries

If you need information regarding purchase of repair parts or if
you have any other sales related questions, please contact the
dealer, selling agent, or manufacturer.

8-3 Sanwa Web Site

http://www.sanwa-meter.co.jp
E-mail: exp_sales@sanwa-meter.co.jp

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D-1034-157 CX506a（和・英）取扱説明書

[9] SPECIFICATIONS

9-1 General Specification

AC Rectifier Form
:Half-wave rectifier form
Meter type :Internal magnet, Taut band meter (15µA)
Accuracy Assurance Temperature/Humidity Range
:23±2℃ 75%RH max. No condensation
Operating temperature and humidity
:5∼31℃,80%RH max.
31＜∼40℃, 80∼50%RH (decreasing linearly)
Storage temperature/Humidity Range
:−10∼50℃ 70%RH max. No condensation
Internal Battery :R6 (IEC) or UM-3 1.5V X2, 6F22 9V X1
Internal fuse :500mA/250V φ5 X 20mm Ceramic tube
Fast acting fuse. Blowout capacity : 1500A
Dimension and Weight
:165(H) X 106(W) X 46(D) mm・approx. 370g
Accessories :Instruction manual 1 Spare fuse 1
Test leads (TL-21) 1 Crip lead (CL-506) 1
Safety :IEC 61010-1 (EN61010-1) 2001-02 : 2001
MeasurementⅢ*. AC, DC600V max.
Pollution degree 2
EMC :IEC 61326 : 1997+A1 : 1998+A2 : 2001
Environmental conditions: Indoor use Altitude up to 2000m
Working circuit voltage: 600 VAC max.

*MEASUREMENT CATEGORY
・CATⅠ:Secondary electrical circuits connected to an AC
electrical outlet through a transformer or similar device.
・CATⅡ:Primary electrical circuits in equipment connected to
an AC electrical outlet by a power cord.
・CATⅢ:Primary electrical circuits of heavy equipment
connected directly to the distribution panel, and
feeders from the distribution panel to outlets.

9-2 Optional Accessories

・Clip adapter CL-11 (Red, Black 1set)
・HV probe HV-50 (DC 0∼30kV Internal resistance:1000MΩ)
・Carrying case C-CA

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D-1034-157 CX506a（和・英）取扱説明書

9-3 Measurement Range and Accuracy

Accuracyassurance range :23±2℃ 75%RH max.
No condensation
Attitude :Horizontal (±5°)
ACV accuracy in the case of sine wave AC.
Function Full scale value Accuracy Remarks
120m ±4% Against full scale Input resistance : 4kΩ
DCV
( ) 3/12/30/120/ ±2.5% Input resistance : 50kΩ/V
300/1000 Against full scale (1000V range : 15kΩ/V)
±3%
ACV 3/12/30/120/ Against full scale
Input resistance : 8kΩ/V
( ) 300/750 (up to 12V range
±4% against full scale)
±2.5%
DCA 30µ/0.3m/3m Against full scale Voltage drop : 120mV
( ) 30m/0.3 (30µ and 0.3A range (0.3A range : 300mV)
±3% against full scale)
Center value 38Ω (X1 range)
x1/x10/x100/x1k/ Max. value 5kΩ (X1 range)
Ω ±3% of arc
x10k Release voltage : 3V
(X10k range : 12V)
C1range : 50p∼0.2µ Use the internal
±6% of arc
C2range : 0.01∼20µ oscillator
( µF )
C3range : 1∼2000µ Approximate value Use the Ω X 1k range
0∼80µA (Ω X1k range)
LI 0∼800µA (Ω X100 range) Terminal to terminal
Approximate value
(µA/mA) 0∼8mA (Ω X10 range) current
0∼80mA (Ω X1 range)
hFE 0∼1000 Approximate value hFE＝Ic/Ib

Band width
3V and 12V range : 40Hz∼30kHz 30V range : 40Hz∼10kHz

Specifications and external appearance of the product described

above may be revised for modification without prior notice.

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D-1034-157 CX506a（和・英）取扱説明書

SANWA ELECTRIC INSTRUMENT CO., LTD.

Dempa Bldg, 4-4 Sotokanda2-Chome Chiyodaku, Tokyo, Japan