Fluke 381 User Manual

Remote Display True-rms Clamp Meter
Features
11
Backlight
Push  to toggle the Backlight on and off. The Backlight automatically goes off after 2 minutes.
To disable the Backlight Auto Off feature, hold down  while turning on the Meter.
Display Hold
To capture and hold the present display reading, push  while taking a reading. Push 
again to return to the live reading.
MIN MAX AVG
Min Max Avg mode can capture the minimum, maximum, and average readings of a given output
signal over an extended time.
Push  to enter Min Max Avg mode, push again to toggle between min and max readings.
Push a third time to display the average reading. To exit Min Max Avg mode, push and hold 
for 2 seconds. When Min Max Avg mode is active, the Auto Power Off feature is disabled.
DC Current Zero
Push  to remove any dc offset that could affect the accuracy of dc readings.

Fluke 381 Specifications

General

Continuity	60 Ω
Resistance (max)	600 Ω
Resistance (min)	6 Ω
Measuring category	CAT III 1000V, CAT IV 600V
AC voltage resolution (min)	600 V
AC current maximum resolution (probe)	2500 A
Product color	Yellow
Operating altitude	0 - 2000 m
Non-operating altitude	0 - 12000 m
Storage temperature (T-T)	-40 - 60 °C
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	0 - 90 %
Probe length	1800 mm
Carrying case	Yes
Probe diameter	7.5 mm

Weight and Dimensions

Depth	277 mm
Width	88 mm
Height	43 mm
Weight	350 g