Amprobe ACD-14 FX - Electrical Specifications

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Standard Accessories:
Test leads (pair), banana plug style, bead Type-K Thermocouple, batteries, user’s manual,
& soft carrying case.
Replacement Part Numbers:
Test Leads (pair): MTL-90B, Bead Type-K Thermocouple: TPK-59, Carrying Case: SV-U
Electrical Specifications
Accuracy is ±(% reading digits + number of digits) or otherwise specified, at 73°F ± 9°F
(23°C ± 5°C) & less than 75% R.H.
True RMS Model ACD-14 TRMS FX ACV, AcµA & ACA clamp-on accuracies are specified
from 5% to 100% of range or otherwise specified. Maximum Crest Factor are < 1.96 at
full scale & < 3.92 at half scale, and with frequency spectrums, besides fundamentals, fall
within the meter specified AC bandwidth for non-sinusoidal waveforms.
DC Voltage
RANGE Accuracy
400.0 mV 0.3% + 4d
4.000V, 40.00V, 400.0V 0.5% + 3d
600V 1.0% + 4d
NMRR: >50dB @ 50/60Hz
CMRR: >120dB @ DC, 50/60Hz, Rs=1kΩ
Input Impedance: 10MΩ, 30pF nominal
(1000MΩ for 400.0mV range)
Max Hold (where applicable)
Specified accuracy ± 50 digits for changes
> 25ms in duration
AC Voltage
RANGE Accuracy 1)
50Hz -- 500Hz
4.000V, 40.00V,
400.0V
1.5% + 5d
600V 2.0% + 5d
CMRR: >60dB @ DC to 60Hz, Rs=1kΩ
Input Impedance: 10MΩ, 30pF nominal
ACA Current (Clamp-on)
RANGE Accuracy
50Hz / 60Hz
40.00A 1.9% + 8d
400.0A 1.9% + 8d*
600A** unspecified
*Accuracy specified to 350A continuous,
and 400A for 60-second max with 5
minutes cool down interval
**Added range to indicate instantaneous
over-range current values
TRMS model ACD-14 TRMS FX accuracy is
specified from 10% to 100% of range.
RANGE Accuracy*
-20°C TO 300°C 2% + 3°C
-4°F TO 572°F 2% + 6°F
Type-K Temperature
*Type-K thermocouple range & accuracy
not included