PMK 880-102-501, Instruction Manual, Page: 31 / 40

31
BumbleBee
®
EN
Performance Verification
Off-Set Zero
Connect the probe’s output to the input of the test multimeter via 50 Ω feed through it´s connec-
tor and BNC Y-Adapter. Set the multimeter to DC Voltage mode. Shorten the input of the probe via
the shortening connector (see Figure 1). Let the probe warm up for 30 minutes at room tempera-
ture (15-35°C). Measure the Off-set voltage in the 4 attenuation stages and compare with the limits
set out in table 2. Please note that the off-set voltage depends on the ambient temperature. If
the measured values exceed the limits, conduct a factory reset using the “PMK Probe Control”
Software; otherwise send the probe to PMK for recalibration.
Attenuation-Mode Multimeter Min. Voltage Multimeter Max. Voltage
500
- 525µV +525µV
250 - 525µV +525µV
100 -1.6mV +1.6mV
50 -1.6mV +1.6mV
Table 2: List of Off-set limits
Figure 1: Setup Off-set Zero