6
6.The device is equipped with a system for diagnostics of the probes condition. If any fault is
detected, the "PROBE PROBLEM" message will appear on the screen. The "DIODE BREAKDOWN"
message that appears when the probes are open, signals the probe failure. Check the
connection of the probes and if the problem persists, contact the customer service.
1.0nly the personnel that has received special training in safety operation and been authorized
to work with the test benches (devices) of certain types is allowed to use the device.
2.Make sure that measuring clamps do not have insulation damage or bare metal spots. Check the
clamps for any breaks. In case of obvious damage, replace them with the new ones before
launching the device.
Diagnostics of a rectifier should be performed as follows:
1.Turn the tester on. Connect the clamp to the rectifier housing. The following message will appear
on the screen: “CONNECT PROBE TO DIODE”.
2.Touch the contact spot of the tested diode with a probe. The following information will be
displayed:
“Vf” – diode voltage drop (in volts);
"Vr" - stabilizing voltage (in volts). If there are stabilitrons (avalanche diodes) in the rectifier
structure, the "AVALANCHE" message will appear.
WARNING!
Different contaminants and dirt on the tested contacts may lead to measurement
errors.
5.1. Safety regulations
5.2. Rectifier testing
Б
Fig.4. Taking measurements.
А) – incorrect; Б) – correct
А
User Manual - MS021 Tester
English
