UNI-T UT50B User Manual

16
Measurement Operation(4)
C. DC Current Measurement (see figure 5)
Warning
Never attempt an in-circuit current measurement
where the open circuit voltage between terminals
and ground is greater than 60V DC or 30V rms.
If the fuse burns out during measurement, the Meter
may be damaged or the operator himself may be hurt.
Use proper terminals, function, and range for the
measurement. When the testing leads are connected
to the current terminals, do not parallel them across
any circuit.
The Model UT50A: The DC current measurement has
4 measurement positions on the rotary switch: 20µA,
2mA, 200mA and 20A.
The Model UT50B: The DC current measurement has
4 measurement positions on the rotary switch: 2mA,
20mA, 200mA and 20A.
The Model UT50C: The DC current measurement has
3 measurement positions on the rotary switch: 20mA,
200mA and 20A.
To measure current, do the following:
1. Turn off power to the circuit. Discharge all high-
voltage capacitors.
( figure 5)
red
black
Model UT50A/B/C: OPERATING MANUAL

UNI-T UT50B Specifications

General

Backlight	Yes
Product type	Digital multimeter
AC current range	0.002 - 20 A
AC voltage range	2 - 750 V
DC current range	0.02 - 20 A
DC voltage range	0.2 - 1000 V
Capacitance range	20 - 100000 nF
Basic accuracy (DC current)	±(0.8%+1)
Basic accuracy (DC voltage)	±(0.5%+1)
Basic accuracy (capacitance)	±(4%+3)
Temperature measurement range	-40 - 1000 °C
Dimensions (WxDxH)	80 x 38.3 x 165 mm
Battery voltage	9 V

Weight and Dimensions

Weight	275 g