Extech Instruments 380946 User Manual

User’s Guide

DCA/ACA CLAMP-ON MULTIMETER ADAPTOR

Model 380946

Introduction

Congratulations on your purchase of Extech's 30 Amp AC/DC Clamp-On MultiMeter
Adaptor. There is no need to break circuits when measuring current with a clamp device,
simply open the meter jaw and clamp around the conductor under test. Current is displayed
on the external DMM that is connected to the Adaptor.

Specifications

DC Ranges Output Accuracy

400mA DC 1mV/mA DC Not specified 1

4A DC 100mV/A ±(2.0%+3mA)

30A DC 10mV/A ±(2.0%+30mA)

AC Ranges 50/60Hz 40 to 100Hz

400mA AC 1mV/mA AC ±(2.0%+0.5mA) ±(2.5%+0.5mA)

50/60Hz 40 to 400Hz

4A AC (0 to 400mA) 100mV/A AC ±(2.5%+8mA) ±(3.0%+8mA)

4A AC (400 to 4A) 100mV/A AC ±(2.5%+3mA) ±(3.0%+6mA)

30A AC 10mV/A AC ±(2.0%+30mA) ±(2.5%+30mA)

Notes: Accuracy stated at 23oC ±5oC

1

The 400mA range is specified for AC measurements only. For DC measurements on this

range the typical accuracy is ±(2.5%+1mA) and the last digit may drift ± 4 counts.

Range DMM display

400mA 0.1mV / 0.1mA (400mA = 40.0mV)

4A 0.1mV / 1mA (4A = 400mV)

30A 0.1mV / 10mA (30A = 300mV)

Jaw size 0.9” (23mm) max
Power 2 1.5V AA batteries
Low Battery indication Red LED
Power consumption 10mA (approximately)
Operating Temperature: 14° to 122°F (-10 to 50
Storage Temperature: -4° to 140°F (-20 to 60
Relative Humidity: 80% to 88°F (31
Altitude: Operating below 2000 meters
Dimensions: 7.2 x 2.5 x 1.4” (183 x 61.3 x 35.6mm)
Weight: 6.7oz (190g)

o

C), <85% R.H.

o

C), <75% R.H.

o

C), decreasing linearly to 50% at 104°F (40oC)

Safety

Safety Symbols

WARNING: This indicates that a potentially hazardous condition which, if not avoided,

CAUTION: This indicates that a potentially hazardous condition which, if not avoided,

Safety Precautions

1. WARNING: Improper use of this meter can cause damage, shock, injury or death.

2. Make sure any covers or battery doors are properly closed and secured.

3. Use great care when making measurements if the voltages are greater than

4. Remove the battery if the adaptor is to be stored for long periods.

This symbol, adjacent to another symbol or terminal, indicates the user must
refer to the manual for further information.

This symbol, adjacent to a terminal, indicates that, under normal use,
hazardous voltages may be present

could result in death or serious injury.

could result in injury or damage to the meter.

Read and understand this user's manual before operating the meter.

25VAC rms or 35VDC. These voltages are considered a shock hazard.

380946 4/01 Rev. 1.0