Endress+Hauser gammapilot FTG 671, Руководство по эксплуатации

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4.6 Additional functions
Detector monitor The Gammapilot FTG 671 also checks whether the detector is operating correctly.
Depending upon the type used, the following alarms and warnings may appear.
•
E 201: Pulserate too low Alarm
•
E 202: Pulserate too high Alarm
•
E 204: Temperature measurement faulty (DG 57 only) Alarm
•
E 206: Reference measurement faultly (DG 57 only) Alarm
•
E 401: No signal from detector Alarm
•
E 404: Wrong detector connected Alarm
•
E 610: Detector data chip changed (DG 57 only) Warning
- e.g. after exchange of detector
•
E 660: Detector temperature too high (DG 57 only) Warning
The self-monitoring function is described in detail in Chapter 6, »Trouble-Shooting«
4.7 Measured value display
During normal operation the normalised countrate can be read at V0H0. In addition to
this, several other fields contain system information which might be needed, e.g., for
trouble-shooting etc.. Table 4.3 summarizes the measured value displays.
Matrix Measured value Remarks
V0H0 Normalised pulse rate or
frequency Display 0
…
100 of normalised countrate(PCM) or
frequency (PFM) depending upon the detector mode
used
V0H8 Current measuring
frequency or pulse rate Displays the frequency or pulse rate which is actually
measured. The value is dispayed as frequency/10 or
counts/100ms
V0H9 Background radiation
DG 57 only Pulse rate of the background radiation for calibration
mode 5. For calibration modes 1
…
4 is always 0.
Displayed as counts/100ms
V3H6 Free value Original pulse rate or frequency used for calibration
V3H7 Covered value Original pulse rate or frequency used for calibration
V3H8 Dose rate Current mean dose rate measured at detector in
µ
Sv/h
V7H1
…
V7H9
Service parameters Parameters which may be required for fault
diagnosis during a service call
V9H0 Current error code When red fault LED flashes, the error code can be
read here
V9H1 Last error code The previous error can be read and deleted here -
press »E«
V9H3 Software version with
instrument code The first two figures indicate the instrument, the last,
the software version; e.g. DDXX:
Instrument code DD, Software version X.X
V9H4 Rackbus address Indicates address set at DIP-switches on card
Table 4.9:
Matrix positions of measured
value displays
Gammapilot FTG 671 Chapter 4: Calibration and Operation
37