Ac Current Measurement Test; Resistance Measurement Test - LG DM-311 Adjustment And Test Procedure Manual

Adjustment and test procedure Manual

5-6 AC Current Measurement Test

Set Rotary S/W to AC Current 20mA Mode and Apply below AC current to terminal COM and terminal
mA to each range with a calibrator. Check the measurement value to each range
Apply below AC current to terminal COM and terminal 10A with a calibrator.

5-7 Resistance Measurement Test

Set Rotary S/W to Resistance Measure Mode and Apply below resistance value to terminal COM and
terminal V to each range with decade resistor. Check the measurement value to each range
Version 1.0
LG Precision Co., Ltd.
Customer
Range
Specification
AC 200µΑ
AC 2mΑ
±(2.0%+2dgt)
AC 20mΑ
AC 200mΑ
Customer
Range
Specification
±(3.0%+2dgt)
AC 10A
Customer
Range
Specification
±(0.5%+4dgt)
200Ω
2kΩ
20kΩ
±(0.5%+1dgt)
200kΩ
2MΩ
±(1.0%+1dgt)
20MΩ
Factory
Specification
±(1.9%+2dgt)
Factory
Specification
±(2.9%+2dgt)
Factory
Specification
±(0.4%+4dgt)
±(0.4%+1dgt)
±(0.9%+1dgt)
Page 7 of 12
DM-311
Test AC Current
190µΑ/60Hz
190µΑ/400Hz
1.9mΑ/60Hz
1.9mΑ/400Hz
19mΑ/60Hz
19mΑ/400Hz
190mΑ/60Hz
190mΑ/400Hz
Test AC Current
9A/60Hz
9A/400Hz
Test Resistance
value
190Ω
1.9kΩ
19kΩ
190kΩ
1.9MΩ
10MΩ
99-08-26