MKS 146C - Appendix D: Front Panel Error;Status Messages; Table 90: Description of Front Panel Error;Status Messages

Appendix D: Front Panel Error/Status Messages Descri
p
tion
307
Appendix D: Front Panel Error/Status Messages
Description
1. E stands for Error.
2. C stands for Caution, or a non-vital problem.
3. Input channel errors appear in their respective displays.
4. Output channel and system errors appear in the main display.
Description of Front Panel Error/Status Messages
Display/Error Code Error
A blank display
No channel/board installed
A blinking display
Calibration error
INVALID
legend
Invalid keystroke
1 long beep
Invalid command
2 short beeps
Keypad timeout
“ . ” Channel auto-powered off
A single decimal point is displayed for any cold cathode channel that
is turned off with the Ion Gauge Auto Power feature. This
distinguishes it from a user-commanded turn off condition.
“
- - - -
” Underrange sensor (lower segments of display are turned on)
Underrange conditions depend upon which sensor is associated with
the channel. A differential capacitance manometer goes underrange
when the reference port pressure exceeds the measurement port
pressure by the full scale of the sensor. For Pirani gauges, zeroing the
sensor can bring the instrument within range.
“
- - - -
” Overrange sensor (upper segments of display are turned on)
Overrange conditions depend upon which sensor is associated with the
channel. Generally, a sensor goes overrange when the pressure
exceeds the measurement range of the sensor.
“
..
” or
“ ....
” Channel turned off (all decimal points in the display are turned on)
If any channels were off when the 146 unit was powered down, they
remain off when the unit is powered up. The channel must be turned
on to resume pressure measurement.
Table 90: Description of Front Panel Error/Status Messages
(Continued on next page)
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com