Activate it by pressing any button or restart it after turning the switch to
GB
the OFF position. To disable the auto power off function, press and hold the
SELECT button in the off state, and turn on the meter.
8. Use of test leads
8.1 Testing in CAT III measurement locations
Ensure the test lead shield is pressed firmly in place. Failure to use the CAT III
shield increases risk of arc-flash.
8.2 Testing in CAT II measurement locations
CAT III shields may be removed for CAT II locations. This allows testing of
recessed conductors such as standard wall sockets.
Take care not to lose the shields.
TECHNICAL SPECIFICATIONS
Accuracy: ± (a% of reading + b digits), 1 year calibration period. Ambient
temperature and humidity: 23°C±5°C; ≤80%RH.
Temperature coefficient: To ensure measurement accuracy, operating
temperature should be within 18°C ~28°C and the fluctuation range should
be within ±1°C. When the temperature is <18°C or >28°C, add temperature
coefficient error 0.1 × (specified accuracy)/°C.
1. AC current
Range
4.000 A
40.00 A
400.0 A
Current frequency
monitoring: 50 Hz~100 Hz
•
Frequency response: 50 Hz~100 Hz
•
For 4 A range, open circuit allows least significant digit <3
•
Accuracy guarantee range: 1%~100% of range
•
The input current amplitude of the current frequency should be >2 A
8
Resolution
Accuracy
0.001 A
± (4%+10)
0.01 A
± (2%+10)
0.1 A
± (2%+10)
0.1 Hz
± (1.0%+5)
Overload
protection
420 A