Fluke 18B+ - AC and DC Voltage Accuracy

15B+/17B+/18B+
Calibration Manual
18
icr05.eps
Figure 6. Temperature Adjustment for 17B+
Calibration for 18B+
For each function in Table 8:
1. Turn the rotary selection knob to the function to be calibrated.
2. On the PCB, short CAL1 and WP6 together. See Figure 7.
CAL1
WP6
WP7
WP8
WP9
CAL1
WP6
icr04.eps
Figure 7. Calibration Adjustment 18B+
3. Connect the UUT signal input terminal to the calibrator (F5522A or other
calibrator.)
4. Enter the calibration values on the calibrator.
5. For each function, push  to confirm.
6. When calibration is complete, turn off the UUT.
Table 8. All Functions Adjustment 18B+
Function Step Display Calibrator Output
VAC 1 High voltage mark (Y) flickers 3 V, 50 Hz
VDC 1 High voltage mark (Y) flickers 3 V, 0 Hz
Cap 1 High voltage mark (Y) flickers 100 μF
ADC 1 High voltage mark (Y) flickers 3 A, 0 Hz
mADC 1 High voltage mark (Y) flickers 30 mA, 0 Hz