What currents does the ACDC-100 TRMS measure?

Up to 1000 A DC and up to 800 A AC (rms continuous) with a 50 mm jaw opening.

What voltage and other functions are available?

AC/DC voltage to 600 V, resistance to 40 MΩ, capacitance to 3000 µF, plus diode and audible continuity tests.

Does it capture inrush?

Yes. The MAX Hold function captures peak values (approx. 30 ms response) for inrush and transients.

Is it True-RMS and what is the safety rating?

Yes, this model is True-RMS and rated CAT III 600 V per IEC/EN 61010-2-032/-2-033.

What’s included in the box?

Clamp meter, test leads, 2 × AAA batteries (installed), carrying case and user manual.

Buy Amprobe ACDC-100 TRMS 1000 A AC/DC Clamp Meter

Description

Amprobe ACDC 100 TRMS

The Amprobe ACDC-100 TRMS 1000 A AC/DC Clamp Meter is a versatile and robust tool designed for electrical professionals requiring accurate AC and DC currents measurements. This clamp meter is particularly noted for its true RMS capability, which allows it to provide accurate readings even in non-sinusoidal waveforms. This makes it ideal for a variety of applications in industrial and commercial settings.

Key Features

Measurement Capabilities

AC Current: Measures up to 800 A
DC Current: Measures up to 1000 A
AC/DC Voltage: Ranges from 400.0 mV to 600 V
Resistance: Up to 40 MΩ
Capacitance: Up to 3000 µF
Continuity Testing: Equipped with a beeper for quick identification of continuity

Design and Ergonomics

Jaw Size: The large jaws can accommodate conductors up to 2 inches (50 mm) in diameter, allowing for easy clamping around various wire sizes.
Ergonomic Design: The clamp meter features a rubber over-molded casing for better grip and durability, enhancing user comfort during prolonged use.

Additional Features

Data Hold Function: Freezes the current reading on the display for easy note-taking.
Relative Zeroing Mode: Allows users to set a reference point for measurements, enhancing accuracy in comparative readings.
Auto Power Off: Automatically turns off the device after a period of inactivity to conserve battery life.
MAX Capturing Function: Captures inrush current measurements, useful for analyzing equipment startup currents.

Datasheet

DatasheetPDF

Specifications

General Specifications
Display	3-3/4 digits 4000 counts LCD display
Update Rate	3 per second nominal
Polarity	Automatic
Low Battery	Below approx. 2.4V
Operating Temperature	0C to 40C
Relative Humidity	Maximum relative humidity 80% for temperature up to 31C, decreasing linearly to 50% relative humidity at 40C
Altitude	Operating below 2000m
Storage Temperature	-20C to 60C, < 80% R.H. (with battery removed)
Temperature Coefficient	nominal 0.15 x (specified accuracy)/ C @(0C -18C or 28C -40C), or otherwise specified
Sensing	True RMS
Safety	Meets EN61010-1:2001; IEC61010-2-032(2002), EN61010-2-032(2002), UL61010B-2-032(2003) Category III 600 Volts AC & DC.
Transient protection	6.5kV (1.2/50μs surge) for all models
Pollution degree	2
E.M.C.	Meets EN61326-1
Overload Protections
Clamp-on jaws	DC 1000A or AC 800A rms continuous + & COM terminals (all functions) : 600VDC/VAC rms
Power Supply	standard 1.5V AAA Size (NEDA 24G or IEC R03) battery X 2; or 1.5V AAA Size (NEDA 24A or IEC LR03) alkaline battery X 2
Power Consumption	typical 11mA for ACA/DCA and 2.9mA for other functions
APO Timing	Idle for 30 minutes
APO Consumption	typical 190μA
Dimension	L227mm X W78mm X H40mm
Weight	290 gm approx
Jaw opening & Conductor diameter	50mm max

Electrical Specifications	Accuracy is ±(% reading digits + number of digits) or otherwise specified, at 23? ± 5? & less than 75% R.H.
DC Voltage
	400.0 mV	0.3% + 3d
	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)
AC Voltage
50Hz ~ 500Hz	400.0mV ¹⁾	4.0% + 4d
50Hz ~ 60Hz	4.000V, 40.00V, 400.0V	1.0% + 4d
60Hz ~ 500Hz	4.000V, 40.00V, 400.0V	1.5% + 4d
50Hz ~ 500Hz	600V	2.0% + 4d
CMRR :	>60dB @ DC to 60Hz, Rs=1kΩ
Input Impedance:	10MΩ, 30pF nominal
ACDC-100 TRMS Crest Factor:	< 1.6 : 1 at full scale & < 3.2 : 1 at half scale
¹⁾ Selection by RANGE button manually, and is specified AC 60mV and up
Resistance
	400.0Ω	0.8% + 6d
	4.000kΩ, 40.00kΩ, 400.0kΩ	0.6% + 4d
	4.000MΩ	1.0% + 4d
	40.00MΩ	2.0% + 4d
Open Circuit Voltage :	0.4VDC typical
Audible Continuity Tester
Open Circuit Voltage:	0.4VDC typical
Range: 400.0Ω; Accuracy:	1.5% + 6d
Audible threshold:	between 10Ω and 120Ω.
Diode Tester
Open Circuit Voltage	Test Current (Typical)
< 1.6 VDC	0.4mA
Capacitance
	500.0nF, 5.000μF, 50.00μF,	3.5% + 6d²⁾ ³⁾
	500.0μF, 3000μF ¹⁾	3.5% + 6d²⁾ ³⁾
¹⁾ Additional 50.00nF range accuracy is not specified
²⁾ Accuracies with film capacitor or better
³⁾ Specified with battery voltage above 2.8V (approximately half full battery). Accuracy decreases gradually to 12% at low battery
warning voltage of approximately 2.4V
DC Current (Clamp-on)
400.0A	0.0A ~ 400.0A	1.5% + 4d ¹⁾ ²⁾
1000A	400A ~ 800A	1.5% + 4d ¹⁾ ²⁾
	800A ~ 900A	2.0% + 4d ¹⁾ ²⁾
	900A ~ 1000A	5.0% + 30d ¹⁾ ²⁾
¹⁾ Induced error from adjacent current-carrying conductor: < 0.01A/A
²⁾ Δ Zero mode must be applied to zero the unit before measurement to ensure accuracy. This is particularly important below 20A.
AC Current (Clamp-on)
400.0A
	15Hz ~ 40Hz	2.0% + 5d ¹⁾ ²⁾ ³⁾
	40Hz ~ 200Hz	1.5% + 5d ¹⁾ ²⁾
	200Hz ~ 400Hz @ <50A ⁴⁾	1.5% + 5d ¹⁾ ²⁾
	400Hz ~ 1kHz @ <50A ⁴⁾	2.0% + 5d ¹⁾ ²⁾
800A
	15Hz ~ 40Hz @ 400A ~ 600A	2.0% + 5d ¹⁾ ²⁾ ³⁾
	40Hz ~ 100Hz @ 400A ~ 600A	1.5% + 4d ¹⁾ ²⁾
	15Hz ~ 60Hz @ 600A ~ 800A	5.0% + 30d ¹⁾ ²⁾
¹⁾ Induced error from adjacent current-carrying conductor: < 0.01A/A
²⁾ ACDC-100 TRMS crest Factor: < 1.6 : 1 at full scale & < 3.2 : 1 at half scale
³⁾ 4.0% + 5d for ACDC-100 TRMS
⁴⁾ Accuracy is specified at <50A in this frequency bandwidth due to limited calibrator output capability for testing