ETS-Lindgren HI-1710 Microwave Measurement System (Archived) - Manual (Page 46)

HI n 1710 Manual Page — 41
6.0 TEST AND TROUBLESHOOTING
The inner case of the HI-1710 is sealed to maintain
calibration. Normally, user repair operations are limited to
verification of proper input voltage and replacement of
the probe/preamp assembly. For power supply voltage
levels which my be checked and adjusted by a qualified
technician, refer to Checks and Adjustments later in this
section. As part of the self-test performed on startup, a
number of error messages can be displayed indicating
operating problems. In addition, the offset and bias
values of the probe are measured each time the
instrument is zeroed.
Error Codes
The following error codes can be displayed by the
HI-1710:
0 4 volt supply low -
1 4 volt supply high - The four volt reference to
the A/D converter is beyond specification. The
instrument must be returned for service if this
error messages persist.
2 5 volt supply low -
3 5 volt supply high - The five volt logic supply
is beyond specification. This voltage is not
adjustable; the instrument must be returned for
repair.
4 8 volt supply low -
5 8 volt supply high - The eight volt supply to the
analog circuitry is beyond specification. The
instrument must be returned for service if these
error messages persist.
Archived 4/2/10