Settings; Zero Point Setting - WIKA GIR-10 Manual De Instrucciones

5. Commissioning, operation

5.5 Settings

5.5.1

Zero point setting

EN

1. Wait 10 minutes for the internal warm-up phase and temperature stabilisation.
2. Press the On/Off switch (1) on the console twice briefly.
⇒
Display of the hand-held shows "Zero OK" and the display of the console
shows "Zero ADJ OK".
⇒
The gas presence detector is operational again.
3. For highest accuracy of the gas presence detector, repeat the zero point setting
regularly.
To remind the operator of the zero point setting, the message "Zero ?" appears on the
hand-held display and "Zero Adjustment ?" on the console display every 30 minutes).
The messages disappear after the zero point setting has been carried out.
The initial zero point setting is no longer valid at extreme outdoor
18
The zero point setting may only be performed in SF₆ gas-free atmospheres.
temperatures (approx. ≤ 10 °C and ≥ 40°C). Repeat the zero point setting if
the sensor displays an SF₆ gas content in an area that is definitely free from
SF₆ gas or a CO₂ content in an area that is definitely free from CO₂.
WIKA operating instructions gas detector, model GIR-10