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Compur Statox 4120
5.1 Using the diagnostic box
Switch the diagnostic box on. Then connect it to the opto- coupler receptacle on sensor head bottom.
Keep the LED`s and the phototransistors of the opto- coupler clean for proper data transmission.
5.1.1 Operation and error codes of the diagnostic box
Note: If a combination of push button operations is requested ( f. i. ST + ENT), the buttons must be
operated in a short time distance.
Example: ST + ENT initiates a self test. The display says „WAIT-TEST RUN“ until the self test is
finished.
Diagnostic box queries:
Button Display
M Measured value in ppm
M + ENT WAIT; after a while reading of actual measured value in ppm
RA Sensor head measuring range
RA + ENT Gas
ST Status passed (System OK) or error message (see 5.1.2)
ST + ENT (initiates self test), TEST Run
FKT Calibration factor
ZERO + ENT * ZERO RUN (start zero adjustment)
* only available with systems with zero adjustment
Diagnostic box error messages:
ERR INPU
Faulty or too slow input. Repeat.
ERR KONZ
Calibration gas concentration out of range.
ERR FACT
Calibration factor is out of range.
DS.W.POS
Measuring range or gas not correctly programmed.
WARN TIM
Time error during data transmission.
WARN DTE
Faulty data transmission.
WARN CHE
No self test due to too low temperature.
TEMP.OU
Temperature out of the admissible range.
TEMP.IN
Temperature is back in the admissible range.
CH.BATT
(audible alarm)
Charge calibration box battery.
NO ZERO
Zero adjustment not possible. Wrong EPROM in sensor
head and control module.
PUMP RUN
Sensor is flushed with air because the gas concentration is
too high.
CAL END
Calibration routine has been cancelled with CE button.
NO CALIB
Calibration not possible within the time limit.
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