User's Manual

175, 177, & 179

Calibration Information

Performance Tests

Note

When calibrating or measuring AC current, avoid the potential for errors from coupled noise, by either:

1. Shorting the VeG to the COM input

2. Having NO connection to the VeG input.

1. Set the UUT Rotary Switch to the position called for in Table 2 (175) or Table 3 (177/179), and for all

measurements other than current (amps), connect the calibrator to the VeG and

COM input terminals.

• If testing the milliamps function, connect the calibrator to the Meter

400 mA and COM input

terminals.

• If testing the amps function, connect the calibrator to the Meter

10A and COM input terminals.

2. Referring to Table 2 or Table 3, apply the indicated calibrator output voltages to the UUT for each test.

3. Verify that the UUT displays a reading that is within the limits shown in the Meter Response column.

Table 2. Performance Tests 175

Meter Response

Test

(Switch Position)

5500 Output

Lower Limit Upper Limit

300 mV 45 Hz 296.7 mV ac 303.3 mV ac

5 V 500 Hz 4.947 V ac 5.053 V ac

5 V 1 kHz 4.897 V ac 5.103 V ac

50 V 45 Hz 49.47 V ac 50.53 V ac

50 V 1 kHz 48.97 V ac 51.03 V ac

300 V 45 Hz 296.7 V ac 303.3 V ac

500 V 500 Hz 494.7 V ac 505.3 V ac

500 V 1 kHz 489.7 V ac 510.3 V ac

AC Volts

1000 V 45 Hz 987 V ac 1013 V ac

1 V 45 Hz 44.94 Hz 45.06 Hz K

AC Volts Frequency

5 V 50 kHz 49.94 kHz 50.06 kHz