Fluke ProcessMeter 789 Calibration Manual page 10

789/787B
Calibration Manual
AC Current Measurement
Range
45 Hz to 2 kHz
1.000 A (Note)
Note: 440 mA continuous, 1 A 30 seconds maximum
Specifications are valid from 5 % to 100 % of amplitude range.
AC conversion: true rms
Maximum crest factor: 3 (between 50 and 60 Hz)
For non-sinusoidal waveforms, add
Overload protection 440 mA, 1000 V fast-blow fuse
DC Current Measurement
Range
30.000 mA
1.000 A (Note)
Note: 440 mA continuous, 1 A 30 seconds maximum
Overload protection: 440 mA, 1000 V fast-blow fuse
Ohms Measurement
Range
400.0 Ω
4.000 kΩ
40.00 kΩ
400.0 kΩ
4.000 MΩ
40.00 MΩ
Overload protection: 1000 V
Open circuit voltage: <3.9 V
Frequency Counter Accuracy
Range
199.99 Hz
1999.9 Hz
19.999 kHz
Display updates 3 times/second at >10 Hz
6
Resolution
0.001 A
±
( 2 % reading + 2 % f.s.) typical
Resolution
0.001 mA
0.001 A
Resolution
0.1 Ω
0.001 kΩ
0.01 kΩ
0.1 kΩ
0.001 MΩ
0.01 MΩ
Resolution
0.01 Hz
0.1 Hz
0.001 kHz
Accuracy,
±(% of Reading + Counts)
1 % + 2
Accuracy
±(% of Reading + Counts)
0.05 % + 2
0.2 % + 2
Measurement Current
310 μA
31 μA
2.5 μA
250 nA
250 nA
125 nA
±(% of Reading + Counts)
0.005 % + 1
0.005 % + 1
0.005 % + 1
Typical Burden
Voltage
1.5 V/A
Typical Burden
Voltage
14 mV/mA
1.5 V/A
Accuracy
±(% of Reading + Counts)
0.2 % + 2
0.2 % + 1
0.2 % + 1
0.2 % + 1
0.35 % + 3
2.5 % + 3
Accuracy