Sensor Calibration cont...
7. Once Null is complete (successfully), the Display Screen should resemble the following illustration:
If the Null was not successful, the Display Screen will show “F5 NULL Failed Check Sensor Voltage”. This
fault will be displayed when one of the following instances occur:
▪
If the voltage is wrong when using a positive sensor, “F5” will be displayed if the voltage is above
1 volt. If the voltage is wrong when using a negative sensor, “F5” will be displayed if the voltage is
less than 1 volt (or higher than 2.4 volts).
•
Positive sensors are: H2S, SO2, CO, HCl, NH3, H2, ClO2, HCN, F2, HF, CH2O.
•
Negative sensors are: Cl2, O3, NO2.
•
LEL and O2 are both different from any other sensor and from each other. When using an
O2 sensor, “F5” will be displayed if the voltage is outside the voltage range of working.
▪
If the Notis Quad cannot communicate with the sensor.
8. Once Null is complete, touch
MENU
(BACK)
or
BACK
(BACK).
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