ETS-Lindgren HI-2790B Calibration Comparison System - Manual (Page 18)

18 Operation www.ets-lindgren.com
Error Messages
Note: There are no user serviceable error messages.
The HI-2790B Power/Control Module continually monitors the power supply
voltages, the forward and reflected power levels, and the phase lock loop. If any
of these readings fall outside the correct operating range of the unit, the unit will
turn off the RF power and display one of the following messages:
 10.5V LO
 10.5V HI
 6V LO
 6V HI
 5V LO
 5V HI
 REF HI
 FOR HI
 LOCK LOST RESET
If an error message appears, turn the HI-2790B Power/Control Module off to
reset the unit, and then turn it on again. If the error message persists, return the
unit to ETS-Lindgren for service.