Menu TEST: watchdog test start? (flashing)
Menu TEST: watchdog test running
Flashing alternatingly with the measured value: most recent zero
adjustment has failed. Retry.
Menu CALIB: zero adjustment
Menu CALIB: flashing: zero stabilizing.
Steady: zero found.
Menu I-SERV: output current 2 mA in the service mode
Menu I-SERV: 2 mA in the service mode have been programmed.
Menu I-SERV: output current 4 mA in the service mode
Menu I-SERV: 4 mA in the service mode have been programmed.
Menu RTC: realtime clock date: day / month / year
Menu INFO: alarm date day / month / year
Menu RTC or INFO: time: hour / minute
Mode without sensor: Instrument software index
Menu INFO: parameter index sensor
Measured concentration, with O
2
sensor in VP (%Vol).
Flashing: measured concentration during service mode (menus
CALIB, REPLACE or PROOF).
If only PPM is flashing: Menu CALIB: enter concentration.