GASTRON GTD-2000TxW, Инструкция по эксплуатации

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7. System Mode
7.2. CALIBRATION MODE
7.2.1. Zero Calibration
PASSWORD
[**]
- Contacting "FUNC" key with the Magnet-bar for 2 sec or longer in Measuring Mode enters Password
mode.
- After setting Password using "↑" or "↓" key, contact "FUNC" key.
CALIBRA.
MODE
- Contact "↑" or "↓" key to select "Calibration Mode".
- Contact "FUNC" key when "CALIBRA. MODE" is displayed to enter Calibration Mode.
- Contact "RESET" key to return to Measuring Mode.
CALIBRA.
[ZERO]
- When "CALIBRATION MODE" is displayed, contacting "FUNC" key selects Zero Calibration.
- Contact "↑" or "↓" key to achieve [ZERO] then contact "FUNC" key to enter Zero Calibration.
ZERO CAL
[ NO]
- Contact "↑" or "↓" key to achieve [YES] then contact "FUNC" key to perform Zero Calibration.
ZERO GAS
[ 0]
- Using a calibration tool, inject clean air or 100% nitrogen into the sensor at a flow rate of 500 mL/min
for 1 min. Contact "FUNC" key when measurement is stabilized to automatically perform Zero Calibration.
ZERO >>
[SUCESS]
- When zero calibration is successful, "ZERO SUCCESS" is displayed for 2 sec on LCD display then it
changes to "CALIBRATION DATA" Mode.
- When zero calibration is not successful, "ZERO FAIL" is displayed for 2 sec and it changes to
"Calibration Data Mode".
- ZERO FAIL occurs when sensor input value exceeds 70% of total ADC input range.
ZERO >>
[ FAIL ]
CAL.DATA
[ 0]
- It is a mode to display measurement after calibration and checks whether calibration is successful after
performing auto calibration.
- When it failed, it displays "FAIL" and the current measurement in 1 sec interval.
- Contact"RESET" key to return to "Calibration mode".
■ Due to characteristics of the gas detector, minimum 30min of stabilization time is required and maintenance
condition may change depending on site condition.