7481
Digital Multimeter
8½-digit high-precision and high-accuracy
digital multimeter for system calibration
l 8½-digit display (119 999 999), 0.01 ppm resolution

DC voltage measurement: 100 mV to 1000 V, 10 nV resolution
DC current measurement: 100 nA to 1000 mA, 100 fA resolution
Resistance measurement: 10 Ω to 1000 MΩ, 1 μΩ resolutionl High-accuracy measurement by self-calibration function

5 ppm/year (DC voltage measurement relative accuracy)
8 ppm/year (resistance measurement relative accuracy)l Internal memory storage up to 50,000 data

http://www.adcmt.com

DMM for System Use with High Accuracy
The 7481 is an 8½-digit digital multimeter with high resolution of 0.01 ppm, equipped with DC voltage, DC current
and resistance measurement functions. It is suitable for use
in research and development fields or calibration organizations, and calibration of inspection systems for electronic
components or semiconductors.
The 7481 achieves high-resolution measurement such as
10 nV for DC voltage measurement, 100 fA for DC current
measurement and 1 μΩ for resistance measurement, andVoltage measurement

also guarantees high relative accuracy 5 ppm per year forvoltage measurement.
In addition, the self-calibration function allows high-accuracy measurement at any time, and external calibration canbe performed with a smaller number of standards.
The 7481 has not only the GPIB and the USB as interface
for automatic systems but also input terminals on the rear
panel for easy system configuration

Resistance measurement

Current measurementl 5 ranges: 0.1 V to 1000 Vl 9 ranges: 10 Ω to 1000 MΩ

l 8 ranges: 100 nA to 1Al Resolution from 4½ digits to 8½

l 2-wire and 4-wire resistance measurementl Minimum resolution 100 fA

l Minimum resolution 1 µΩl High relative accuracy 20

digitsl Minimum resolution 10 nVl Stabilized voltage relative accuracy

5 ppm/yearl Stabilized voltage relative accuracy 8 ppm/year

ppm/yearl Low power switching function to reduce theself-heating of resistors to be testedl Automatic cancellation function of thermal

EMF of the input cable

Current measurement
protection fuse

Rear input terminals for
system use

External TRIGGER input terminal

COMPLETE output terminal
Measurement end output

2

GUARD terminal

Input terminals

COMPARATOR output terminal

GPIB connector

USB connector

8½ digits high precision for high

8½-Digit High-Performance DMM Suitable forHigh-Accuracy Measurement
The 7481 is a high-performance digital multimeter with 8½-digit display for DC voltage or resistance measurement (119
999 999) and 7½-digit display for DC current measurement (11 999 999). As for DC voltage ratio measurement, maximum
8-digit display is possible. Consequently, this is the best used as standard and for high-accuracy measurement.

High-accuracy digital multimeter equipped with simple calibration function
DC voltage

ResistanceDC current

Voltage ratio

Maximum display

119 999 999

119 999 999

11 999 999

99 999 999

Relative accuracy*

0.5±0.1

2±0.2

5±10

1.25±0.25(Condition)

10 V range

10 kΩ range

1000 µA range

10 V range*Relative accuracy: ppm of reading ± ppm of range, 23°C ± 1°C, 24 hours

All you need to perform external calibration for the 7481 are two sources: a DC voltage standard (10 V) and a resistance standard (10 kΩ).
By the two-source calibration and the self-calibration function, all rages of DC voltage, DC current and resistance are calibrated and internal errors due to ambient temperature change can be removed. As a result, high-accuracy measurements areguaranteed.
Calibration values are stored in the internal memory together with its calibration date, and these data can be read out by the
GPIB or USB.

High-precision A/D converter

Low-noise design

The 7481 adopts a self-developed multi-scope integration
system for A/D conversion. So, it realizes high-precisionlinearity and excellent stability as standard, making it possible to perform high-accuracy measurements.
The following figure shows the stability at 0 V input in the
10 V range.

The 7481 offers measurement with less dispersion by its
low-noise ranging amplifier.
The following figure shows the integration time and effective values (rms) of display dispersion at 0 V input in the
100 mV range.

DCV 10 V range stability (typical value)

100 mV range display dispersion (typical value)

Input: 0V
Integration time: 100 PLC
Sampling count: 500200
180Standard deviation: 0.01 ppm

160

Co u nt

140
120
100
80
60
40
20

Display dispersion (μVrms)

Input 0V

200

1.00

0.10

0.01
0.01

0

4

.0

-0

3

.0

-0

2

.0

-0

1

.0

-0

0

01

0.

02

0.

03

0.

04

0.

0.1

1

10

100

Integration time (PLC)

Stability (ppm)

accuracy proofreading systems

3

High-Precision Resistance Measurement by Thermal EMF Cancellation
The 7481 has not only precise DC voltage measurement function but also high-precision resistance measurement function inwhich micro thermal electromotive force that causes errors in resistance measurement is cancelled automatically.

In ratio measurement, the reference DC voltage is measured
by using the 4 WΩ measurement terminal in addition tonormal DC voltage measurement, and its voltage ratio isgained by calculation. Using this function, it is possible tomeasure attenuator voltage division ratio and electric power,
eliminating error factors of the external supply source inresistance measurement.

External current source

Ratio measurement function
4WΩ-Hi
Rs

Vs
4WΩ-Lo
Hi

Rx

Vx
Lo

Ratio: Vs/Vx
Vs: 4 WΩ measurement terminal voltage
Vx: DCV measurement terminal voltage

Various Functions Convenient for Measurements
50,000 data internal memory

4-wire contact check function

Up to 50,000 measurement data can be stored in the internal memory (RAM).

Front/rear input terminal external control

In 4-wire resistance measurement, contact check on thecurrent source and voltage measurement points are performed. Measurement errors due to wrong connection orcontact failure can be judged in advance.

The front and rear input terminals can be controlled externally via the GPIB or USB.
It can prevent switching errors between the f ront and rear input.

Comparator function
Efficient PASS/FAIL judgement is available by setting threshold values for inspection of electronic components such as resistors and semiconductors. Judgment results PASS or FAIL are displayed as measurement results on the screen, and also are
output to the COMPARATAOR output terminal.

Comparator function Measurement display

Comparator function Threshold values, judgment setting

Statistic operation function
The maximum 10,000 samples can be set. Statistic operation results such as maximum value, minimum value, average, dispersion and standard deviation (σ) are displayed.

Statistic operation function Result display

Wide Range & High Speed Measuring

47481 Specifications

Range multiplier of range error

DC Voltage Measurement (DCV)
Range/maximum display resolution/input impedance
Range

Maximum
display

Resolution
8½

7½

6½

5½

Input impedance

4½

100 mV

119.99999 mV

-

10 nV

0.1 µV

1 µV

10 µV

>100 GΩ

1000 mV

1199.99999 mV

10 nV

0.1 µV

1 µV

10 µV

100 µV>100 GΩ

10 V

11.9999999 V

0.1 µV

1 µV

10 µV

100 µV

1 mV>100 GΩ

100 V

119.999999 V

1 µV

10 µV

100 µV

1 mV

10 mV

10 MΩ±1%1000 V1099.99999 V

10 µV

100 µV

1 mV

10 mV

100 mV

10 MΩ±1%*5Range
100 mV
1000 mV
10 V
100 V
1000 V*3

90 days

24 hours

Tcal*1 ± 1°C
5.0+10
4.0+1
3.0+0.2
5.0+1
5.0+0.2

7.0+10
6.0+1
5.0+0.2
7.0+1
7.0+0.2*1 Tcal = temperature at calibration*2 4 minutes or more after range switching (MATH NULL, fixed range), Tcal ±1°C*3 Within 24 hours after last INT CAL, ±1°C, Tcal ± 5°C (MATH NULL, fixed
range)INT CAL: internal calibration (calibration of errors in DMM)
Add 0.9 ppm of reading additional error for ADC traceability to Japan’snational standard.

Voltage coefficient: Add 7 ppm (Vin/1000 V)2 for 100 V or higher input.
Temperature coefficient: (ppm of reading + ppm of range)/°C
Range
100 mV
1000 mV
10 V
100 V
1000 V

Temperature coefficient
Without INT CAL
With INT CAL
1.2+1
0.25+1
1+0.1
0.15+0.1
1+0.01
0.15+0.01
1.2+0.1
0.25+0.1
1.2+0.01
0.25+0.01

Without INT CAL: INT CAL is not performed regardless of the ambient
temperature changeWith INT CAL:INT CAL is performed according to the ambient
temperature change and a measured value right afterthat is used.
Temperature coefficient
additional error with
Auto-zero OFF

Range

Range

Additional error
ppm of range/°C

100 mV
1000 mV/10 V
100 V/1000 V

50
51

HiPower

LoPower

50/60 Hz±0.07%

90 dB
150 dB

140 dB
140 dB

0 dB
60 dB

Gain error
ppm of reading

Range error
ppm of range

2 μs to 5 μs
6 μs to 10 μs
20 μs to 100 μs
200 μs to 1 ms
2 ms to 10 ms
1 PLC
2 PLC to 3 PLC
4 PLC to 5 PLC
6 PLC to 10 PLC
20 PLC to 30 PLC
40 PLC to 50 PLC
10 PLC to 90 PLC

2000
1000
200
30
10
1
0.8
0.6
0.5
0.2
0.2
0.1

1000
500
100
20
10
0.6
0.5
0.4
0.3
0.2
0.1
0.05

Resolution
8½

7½

6½

5½

4½

10 Ω
11.999999 Ω
1 μΩ 10 μΩ 100 μΩ
1 mΩ
100 Ω 119.999999 Ω
1 μΩ 10 μΩ 100 μΩ
1 mΩ 10 mΩ
1000 Ω 1199.99999 Ω
10 μΩ 100 μΩ
1 mΩ 10 mΩ 100 mΩ
10 kΩ 11.9999999 kΩ 100 μΩ
1 mΩ 10 mΩ 100 mΩ 1 Ω
100 kΩ 119.999999 kΩ
1 mΩ 10 mΩ 100 mΩ 1 Ω
10 Ω
1000 kΩ 1199.99999 kΩ 10 mΩ 100 mΩ 1 Ω
10 Ω 100 Ω
10 MΩ 11.999999 MΩ
1Ω
10 Ω 100 Ω
1 kΩ
100 MΩ 119.99999 MΩ
10 Ω 100 Ω
1 kΩ 10 kΩ
1000 MΩ 1199.9999 MΩ
100 Ω
1 kΩ 10 kΩ 100 kΩ
10 Ω
11.999999 Ω
1 μΩ 10 μΩ 100 μΩ
1 mΩ
100 Ω
119.99999 Ω
10 μΩ 100 μΩ
1 mΩ 10 mΩ
1000 Ω
1199.9999 Ω
100 μΩ
1 mΩ 10 mΩ 100 mΩ
10 kΩ 11.999999 kΩ
1 mΩ 10 mΩ 100 mΩ 1 Ω
100 kΩ 119.99999 kΩ
10 mΩ 100 mΩ 1 Ω
10 Ω
1000 kΩ 1199.9999 kΩ
100 mΩ 1 Ω
10 Ω 100 Ω
10 MΩ 11.999999 MΩ
1Ω
10 Ω 100 Ω
1 kΩ
100 MΩ 119.99999 MΩ
10 Ω 100 Ω
1 kΩ 10 kΩ
1000 MΩ 1199.9999 MΩ
100 Ω
1 kΩ 10 kΩ 100 kΩ

Measurement
current

Open
circuitvoltage

10 mA
10 mA
1 mA
1 mA
100 μA
10 μA
1 μA
100 nA
10 nA
10 mA
1 mA
1 mA
100 μA
10 μA
1 μA
100 nA
10 nA
10 nA

13 V
13 V
13 V
17 V
17 V
17 V
17 V
16 V
16 V
5V
5V
5V
5V
5V
5V
5V
5V
16 V

4-Wire Resistance Measurement
Accuracy: Relative accuracy with the integration time of 100 PLC± (ppm of reading + ppm of range)
Range

HiPower

Additional errors by integration time *4
Integration time

Maximum
display

Maximum input voltage: Between measurement terminals: ±350 V peak
GUARD-chassis ±420 V peak
GUARD-Lo terminal ±100 V peak

Additional error: Add the following additional errors for integration timeother than 100 PLC.

*4

NMR
DC

Resistance Measurement*3

Tcal ± 5°C

2.5+101.5+1
0.5+0.1
2.5+1
2.5+0.1

Integration time 200 μs to 10 ms for multipliersin the parentheses

50/60 Hz±0.07%

10 ms or less
1 PLC or more

1 year×20 (×100)
×2 (×10)×1 (×1)×2 (×10)×1 (×1)

Effective CMR

Integration time*2

Multiplier*5

Noise rejection: Between Guard and Lo terminals, at unbalanced
impedance of 1 kΩMaximum input voltage: Input Hi-Lo ±1000 Vpeak
GUARD-chassis ±420 Vpeak
GUARD-Lo terminal ±100 Vpeak
Accuracy: Relative accuracy with the integration time of 100 PLC± (ppm of reading, + ppm of range)

Range
100 mV
1000 mV
10 V
100 V
1000 V

LoPower

*6

10 Ω
100 Ω
1000 Ω
10 kΩ
100 kΩ
1000 kΩ
10 MΩ
100 MΩ
1000 MΩ
10 Ω
100 Ω
1000 Ω
10 kΩ
100 kΩ
1000 kΩ
10 MΩ
100 MΩ
1000 MΩ

24 hours

90 days*6

Tcal ± 1°C
5+10
5+2
3+2
2+0.2
2+0.2
10+1
50+5
500+100.5%+10
5+10
5+10
3+2
3+2
10+2
50+5
500+500.5%+50
0.5%+10

1 year*6
Tcal ± 5°C

12+20
10+5
8+5
6+0.5
6+0.5
12+1
50+5
500+100.5%+10
12+20
12+20
8+5
10+5
12+5
50+5
500+500.5%+50
0.5%+10

14+20
12+5
10+5
8+0.5
8+0.5
14+1
50+5
500+100.5%+10
14+20
14+20
10+5
12+5
14+5
50+5
500+500.5%+50
0.5%+10Within 24 hours after last INT CAL, ±1°C, Tcal ±5°C (MATH NULL, fixed range)
Add 3.1 ppm of reading additional error for ADC traceability to Japan’s national standard.

1 µs is an unspecified accuracy.

5

Temperature coefficient: ± (ppm of reading + ppm of range)/°C
Temperature coefficient
Without INT CAL
With INT CAL
3+3
1+3
3+1
1+1
2+1
1+1
2+0.1
1+0.1
2+0.1
1+0.1
2+0.1
1+0.1
20+0.1
5+0.1
100+1
50+1
1000+1
500+1
3+3
1+3
3+3
1+3
2+1
1+1
2+1
1+1
2+1
1+1
10+1
5+1
100+1025+10
1000+10250+101000+1
500+1

Range

Hi-Power

Lo-Power

10 Ω
100 Ω
1000 Ω
10 kΩ
100 kΩ
1000 kΩ
10 MΩ
100 MΩ
1000 MΩ
10 Ω
100 Ω
1000 Ω
10 kΩ
100 kΩ
1000 kΩ
10 MΩ
100 MΩ
1000 MΩDC Current Measurement
Range/maximum display resolution/input impedance/over input protection
Range
100 nA
1000 nA
10 μA
100 μA
1000 μA
10 mA
100 mA
1000 mA

Gain error
ppm of reading
2000
200
30
10
1
0.2
0.1

2 μs to 10 μs
20 μs to 100 μs
200 μs to 1 ms
2 ms to 10 ms
1 PLC to 10 PLC
20 PLC to 50 PLC
60 PLC to 90 PLC*7Range error
ppm of range
1500
150
30
10
0.6
0.2
0.1

7½
100 fA
1 pA
10 pA
100 pA
1 nA
10 nA
100 nARange
100 nA
1000 nA
10 μA
100 μA
1000 μA
10 mA
100 mA
1000 mA*9

24 hours*2

Hi-Power

Lo-Power*8

10 Ω
100 Ω to 1000 Ω
10 kΩ to 1000 MΩ
10 Ω to 100 Ω1000 Ω to 100 MΩ
1000 MΩ×20 (×100)
×5 (×10)×1 (×1)×20 (×100)
×5 (×10)×1 (×1)

Integration time 200 μs to 10 ms for multipliers in the parentheses

2-Wire Resistance Measurement
Accuracy: Add 0.2 Ω offset error to ppm of range of 4-wire resistancemeasurement (4 WΩ) accuracy.

1 year*9
Tcal ± 5°C

25+400
15+40
15+20
15+20
15+20
15+20
25+20
100+2025+400
20+40
20+20
20+20
20+20
20+20
30+20
110+20Within 24 hours after last INT CAL, ±1°C, Tcal ± 5°C (MATH NULL, fixed range)

Add 4 ppm of reading additional error for ADC traceability to Japan’s national standard.

Temperature coefficient: (ppm of reading + ppm of range)/°C
Range
100 nA
1000 nA
10 μA
100 μA
1000 μA
10 mA
100 mA
1000 mA

Temperature coefficient
Without INT CAL
With INT CAL
10+200
2+50
10+20
2+5
2+4
2+1
5+3
2+1
5+2
2+1
10+2
5+1
20+2
5+1
20+3
10+2

Additional error: Add the following additional errors for integration timeother than 100 PLC.*10
Integration time

4 WΩ check function ON: Add 5 ppm gain error.
Ω-COMP function ON: Add 2 ppm gain error for 100 kΩ and 5 ppm gain
error for 1000 kΩ.

90 days*9

10+400
10+40
5+10
5+10
5+10
10+10
20+10
100+10Range multiplier of range error
Multiplier *8

Input
Over input
impedance
protection
4½
10 pA 1010 kΩ or less
100 pA 105 kΩ or less
1 nA 10.1 kΩ or less 1.25 A/250 V
10 nA 1.01 kΩ or less fast-blow
fuse
100 nA102 Ω or less
1 μA
12 Ω or less protection
10 μA
3 Ω or less
100 μA2 Ω or lessTcal ± 1°C

1 μs is an unspecified accuracy.

Range

Resolution
6½
5½
100 fA
1 pA
1 pA
10 pA
10 pA 100 pA
100 pA
1 nA
1 nA
10 nA
10 nA 100 nA
100 nA
1 μA
1 μA
10 μA

Accuracy: Relative accuracy with the integration time of 100 PLC± (ppm of reading, + ppm of range)

Additional error: Add the following additional error for integration timeother than 100 PLC.*7
Integration time

Maximum
display
119.9999 nA
1199.9999 nA
11.999999 μA
119.99999 μA
1199.9999 μA
11.999999 mA
119.99999 mA
1199.9999 mA

2 μs to 10 μs
20 μs to 100 μs
200 μs to 1 ms
2 ms to 10 ms
1 PLC to 10 PLC
20 PLC to 50 PLC
60 PLC to 90 PLC

Gain error
ppm of reading
2000
200
30
10
1
0.2
0.1

Range error
ppm of range
2000
1200
1200
800
10
4
2

Range
100 nA
1000 nA
10 μA to 1000 mA

Multiplier
×50
×5
×1

*10 1 μs is an unspecified accuracy.

Temperature coefficient (Auto-zero OFF):Add the following addition error (ppm of range)/°C to thetemperature coefficient of 4-wire resistance measurement (4WΩ).

Hi-Power

Lo-Power

6

Range

Additional error
ppm of range/°C

10 Ω
100 Ω to 1000 Ω
10 kΩ to 1000 MΩ
10 Ω to 100 Ω1000 Ω to 100 MΩ
1000 MΩ

50
5
1
50
5
1

Range multiplier ofrange error

Ratio Measurement
Ratio
Input voltage
Reference voltage
Referencemeasurement range

Input voltage/reference voltage
DCV Hi-Lo terminals(Hi sense - Lo terminal) - (Lo sense - Lo terminal)

Resistance value temperature compensation
1000
RX
R20 =
×
(Ω/km)
1+0.00393 (T-20)
L
R20: Converted resistance value of copper wire at 20°C
(Ω/km)
RX: Measured resistance value at temperature of X°C (Ω)
T: Room temperature at measurement, L: Wire length

DCV 100 mV to 10 V (auto range only)

Accuracy:
Ratio measurement
accuracy
Input measurement
error
Referencemeasurement error± (Input measurement error + Reference measurement
error)

Pt sensor temperature measurement: JIS C1604-1997 (ITS90)

Total range error of DCV input signal measurement × 1
Total range error of DCV reference signal measurement
× 1.5

Comparator:

Integration Time

1 μs to 100 PLC
100 μs to 100 PLC
1 ms to 100 PLC
1 PLC to 100 PLC
10 PLC to 100 PLC

PLC: Power Line Cycle
10 PLC is repeated in case of 20 PLC or longer.

Averaging

Statistic operation: RN
Rmax
Rmin
Rucl
Rlcl
Null operation:

Sets a certain measured value as null value, andsubtracts the null value from the following measured
values. Null correction is available in the full range ofeach measurement range.

Memory function: Memory contents Measured data (50,000 data)
Condition setting memory 4 files (USER0 to USER3)
RTC (real time clock)Obtains the average of measurement data of a specified
averaging count.
Averaging count: 2 to 100

Trigger function: Trigger source IMMEDIATE, MANUAL, EXTERNAL,		
BUS, LEVEL, TIMER, LINE

Interrace Function
R=% deviationR=dB conversion

Number of samples, Rave Average value
Maximum value,
Rp-p Dispersion range
Minimum value,
R
Standard deviation
Upper Control Line Rave+3R
Lower Control Line Rave-3R

Obtains the moving average of measurement data of a
specified smoothing count.
Smoothing count: 2 to 100

Format:Scaling

Delta

UPPER < D
LOWER ≤ D ≤ UPPER
D < LOWER

Operation result display
PASS or FAIL is displayed as result.
PASS setting is available independently for each of UP,
MID and LOW areas.

Computing Operations
Digital filter:
Smoothing

UP area
MID area
LOW area

Constant setting range
UPPER -9.99999999 E+51 to +9.99999999 E+51
LOWER -9.99999999 E+51 to +9.99999999 E+51

The integration time can be set as follows:
1 μs to 10 μs:
1 μs step
20 μs to 100 μs:
10 μs step
200 μs to 1 ms:
100 μs step
2 ms to 10 ms:
1 ms step
1 PLC to 10 PLC:
1 PLC step
10 PLC to 100 PLC: 10 PLC step
4½-digit display
5½-digit display
6½-digit display
7½-digit display
8½-digit display

Operation

D-Y
X

D-X
|X|

×Z

(X, Y, Z: constant)

× 100

(%)

R = Dt - Dt-1

(difference from the previous
measured value)

R = 20 log10 | D/X |

RMS

R =

1
N

DK2

K=1

dBm conversion

R = 10 log10

Compliant to IEEE 488.2-1987
Amphenol 24 pin
SH1, AH1, T5, L4, SR1, RL1,
PP0, DC1, DT1, C0, E2

USB interface:
Standard
Connector

Compliant to USB 2.0 Full-Speed
Type B

Input terminals:

Switchable between front input and rear
input by remote control

(dB)

N

∑

GPIB interface:
Command system
Connector
Interface function		External control signals: Connector BNC connector
Trigger input signal
TTL level, positive/negative pulse
selectable
Complete output signal
TLL level, negative pulse
Comparator output signal Open collector/pull-up selectable		
PASS/FAIL output selectable

D2/X
(dBm)
10-3

R: dBm conversion value based on 1 mW (= 0 dBm)
D: voltage measured value (V),X: reference resistance value (Ω)

7General Specifications
Operating environment: Temperature: 0°C to +50°C(Performance guaranteed between 0°C and+40°C)
Relative humidity: 85% or less, no condensation(65% or less no condensation for resistancemeasurement ranges: 1 MΩ, 10 MΩ, 100 MΩ,1000 MΩ, current measurement 100 nA range)
Storage environment:

Warm-up time:
Display
Range switching
Input method

Temperature: -25°C to +70°C
Relative humidity: 85% or less, no condensation
4 hours or more to meet the specifications
256 × 64 dot-matric VFD
Automatic and manual
Floating and guarded

Supplied accessories
Name

Model

Quantity

A01402

1

Input cable (test probe 1 m)

CC010001

1

Alligator clip adapter (for CC010001)

CC015001

1

DFS-AN1R25A-1

1

Power fuse

DFT-AA1A-1

1

EMI clamp

DEE-100345-1

1

Power cable (JIS 2 m)

Optional accessories
4WHI

Name

HI

350 V

Input cable (for 4-wire measurement)

Model
A01006

4WLO

350 V

350 V

Input cable (banana- alligator)

A01035COM

350 V

1000 V

350 V

Input cable (test probe 1 m)

CC010001

Guard

100 V

450 V

1000 V

450 V

420 V

420 V

770 V

1000 V

770 V

Alligator clip adapter (for CC010001)

CC015001

Front handle set 2U

CC028002* Do not apply more than 1000 V between the same terminals on thefront and the rear.

Measurement method: Integration
Power supply:

50 Hz/60 Hz
42 VA or lessApprox. 424 (W) × 88 (H) × 450 (D) mm
9 kg or lessCompliant with IEC61010-1 Ed.3 Measurement CAT II
EN61326-1 class A

Current terminal protection fuse

Maximum allowable applied voltage

ChassisLine frequency:
Power consumption:
Dimensions:
Mass:
Safety:EMC:

Rack mount set EIA 2U

CC024002

Rack mount set JIS 2U

CC022002(The front handle set and the rack mount set can be used in combination.)AC power supply 100V/120V/220V/240V (Userselectable)
Option number

Standard

OPT. 32

OPT. 42

OPT. 44

Power voltage

100 V

120 V

220 V

240 V

Use a power cable and a fuse that are compliant
with the safety standard when changing the power
supply voltage.

● Please read through the operation manual carefully before using the product.
● All specifications are subject to change without notice.

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