24
OLC(T)100
Technical manual
Calibrating the OLC100
The cover of the detector remains closed, with any adjustments being
carried out at the central measuring unit.
For an explosimeter, it is recommended that the detector should be
calibrated by using the gas to be detected. If the user would like to
calibrate the detector with a gas other than that detected and
programmed in the factory, reference should be made to the table on
page 30 by using the recommended gas and corresponding coefficient.
Zeroing
Proceed as follows :
034
Figure 16 : Zeroing (OLC100).
1. Inhibit any alarm signals on the central unit.
2. Place the calibration shroud onto the detector head (Figure 16, "A").
3. Connect the calibrator shroud to the pure air bottle "D" using a flexible hose
"B".
4. Open the valve on the pure air bottle (flow rate 30 to 60 litres/hr) "C".
5. After the measurement has stabilised (approx. 2 minutes), read the display of
the central measuring unit.
A displayed figure of "0.0" corresponds to 0% gas.
6. If a different value is displayed, adjust the "0" on the measuring unit to correct
the value until a reading of exactly 0.0% is obtained.
7. Close the valve "C" on the bottle. Remove the calibration shroud "B" if no
sensitivity control is necessary.
Содержание OLC 100
Страница 1: ...P N NPO100GB rev C...
Страница 45: ...9 Declaration of EC conformity 45...
Страница 46: ...46 OLC T 100 Technical manual Chapter 10 Technical specifications...
Страница 50: ...50 OLC T 100 Technical manual Mark on sensor VQ1 4F poison resistant sensor Figure 25 mark on VQ1 sensor...
Страница 62: ...62 OLC T 100 Technical manual...
Страница 63: ...Annexe Ordering information 63...