Fluke 18B+ - Maintenance

Digital Multimeter
Performance Tests
13
Performance Test for 18B+
Before doing the performance test, make sure to warm up the calibrator.
To test each function and operating ranges:
1. For each step in Table 4, set the UUT to the specified function and range.
2. Connect the source to the input jacks on the UUT.
3. Apply the output from the source.
4. Make sure the readings on the UUT display are within the limits in Table 4.
5. For the LED test, put the LEDs as shown in Figure 2. The test passes if the
LED lights.
Table 4. Performance Specifications for 18B+
Step Function
Calibrator Output UUT reading limit
Value
Frequency or
Amplitude
Lower Limit Upper Limit
1
VAC
3.5 V 50 Hz 3.462 3.538
2 35 V 50 Hz 34.62 35.38
3 35 V 500 Hz 34.62 35.38
4 350 V 50 Hz 346.2 353.8
5 1000 V 50 Hz 986 1014
6
VAC/Freq.
45 Hz 1 V 44.92 45.08
7 5 KHz 1 V 4.992 5.008
8 100 KHz 3 V 99.6 100.4
9 VAC/Duty 50 Hz
3 V (Square
Wave)
49.5 50.5
10
VDC
3.5 V 0 Hz 3.480 3.520
11 35 V 0 Hz 34.80 35.20
12 350 V 0 Hz 348.0 352.0
13 -1000 V 0 Hz -1008 -992
14 mVDC 350 mV 0 Hz 345.4 354.6
15 mVAC 350 mV 500 Hz 339.2 360.8