Newport 1815-C, Operator'S Manual

Page: 30 / 34

17
Troubleshooting
Guide
4.3
The following troubleshooting guide is intended to isolate and solve problems
with the power meter so that, to the greatest extent possible, the return of the
power meter/detector system to Newport will be unnecessary. For the
problems that cannot be resolved with information in this manual, or for other
situations that are not covered in this section, please see Section 5 for details
on returning your entire system to Newport for service.
Table 10 — Symptom/Fault Troubleshooting Guide
Symptom Possible Fault/Correction
Blank display. Power switch OFF. Turn switch ON.
Batteries dead. Replace batteries per
Section 2.4.1.
BAT indicator lit. Batteries voltage is low. Replace batter-
ies per Section 2.4.1.
Display value does not change. CAL button depressed. Release CAL
button.
Display indicates
±
1 Signal overflow. Adjust Range knob
clockwise.
Reading is different than expected. See Table 6 Common Measurement
Errors. Section 3.4.2.