ECOLINE 7823, Быстрый старт

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CALIBRATION PROCEDURES
Automatic Calibration

Ensure the 7823 is configured for automatic
calibration. See CONFIGURATION on Page 7.

Place the sensor probe in the calibration gas,
typically normal air.

Allow the output to stabilise for at least 5 mins. 10
mins if powering from cold.

Apply GND to the CALIBRATE input (PIN 3) for a
minimum 12s. During the 12s the CYCLE output
(PIN 4) and the green LED will go high/on, blink
rapidly, go high/on, go low/off then return to cycling
normally to indicate normal operation has resumed.
At this point remove GND from PIN 3.

The output will now track to the correct value for the
calibration gas.

Calibration is complete. Calibration values are
retained on power loss.
Manual Calibration

Ensure the 7823 is configured for manual
calibration. See CONFIGURATION on Page 7.

Place the sensor probe in the calibration gas,
typically normal air.

Allow the output to stabilise for at least 5 mins. 10
mins if powering from cold.

Apply GND to the CALIBRATE input (PIN 3) for a
minimum 5s or until the CYCLE output and green
LED blink at a steady 1Hz. Remove GND from PIN
3. Manual Calibration is now initialised.

Adjust the MANUAL CAL POT until the output
equals the correct value of the calibration gas
concentration.

Re-apply GND to PIN 3 for a minimum 5s. During
the 5s the CYCLE output/LED will blink rapidly, go
high/on, go low/off then return to cycling normally to
indicate normal operation has resumed. At this point
remove GND from PIN 3.

The output will now track to the correct value for the
calibration gas.

Calibration is complete. Calibration values are
retained on power loss.
SEE PAGE 4 FOR THE LOCATION OF THE SENSOR/
POWER LEDs AND THE MANUAL CAL POT.
ERROR CONDITIONS
If the oxygen sensor is damaged the 7823 will
highlight this by blinking the CYCLE output (pin 4) and
green LED in a 3 short blinks 1 long blink pattern or
continuously OFF. An error code is also displayed on the
RS232 output and the analogue outputs will go to 4mA
and 0V.
7823
Oxygen Analyser
ECO line
7823 Oxygen Analyser
E instruments
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