Specifications - Extech Instruments MA140 User Manual

Specifications
ELECTRICAL SPECIFICATIONS
Function
AC Current
Low Pass Filter
(LPF)
Function
Inrush Current
Volt‐Detection
Notes:

Clamp position error: ±2% of reading. Maximum ±4% near clamp jaw opening.

Adjacent Conduction Influence of Jaw: <0.08A/A

Accuracy is given as ± (% of reading + least significant digit) at 23C ±3C with relative
humidity lower than 80%. Accuracy is specified for a period of one year after calibration.

ACA specifications are for AC Coupled, True RMS. For non‐sinusoidal waveforms, additional
accuracy Crest Factor (C.F.) considerations exist as detailed below:
Add 3.0% for C.F. 1.0~2.0
Add 5.0% for C.F. 2.0~2.5
Add 7.0% for C.F. 2.5~3.0
800.561.8187
Range Resolution
60.00 A 0.01
300.0 A 0.1
All specifications are valid from 10% to 100% of each range
The LCD displays 0 counts when the reading < 10 counts
60.00 A 0.01
300.0 A 0.1
All specifications are valid from 10% to 100% of each range
The LCD displays 0 counts when the reading < 10 counts
Cut‐off frequency (‐3dB): 160Hz
Attenuation characteristic: ‐24db per octave (approximately)
Range Resolution
300.0 A 0.1
Integration time: 100ms
Trigger current (threshold): 5A
80V~600VAC n/a
The tip of the clamp offers the optimum sensitivity
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Accuracy (of reading) 50/60Hz
Accuracy (of reading)
10
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± (2.0% + 5 digits)
± (3.5% + 5 digits)
± (3.5% + 5 digits)
n/a
MA140‐en‐GB_V1.0 1/15
information@itm.com