38
OLC(T)100
Technical manual
Calibration kit
Description
The kit generally comes with the following contents:
Id.
Description
A.
Shroud for introducing the gas (optional) to be attached onto the detector to be
calibrated.
B.
Plastic tube (Rylsan®). A Teflon® tube should be used for corrosive gases.
C
Pressure release and flow regulator.
D.
Pressure gauge showing the internal bottle pressure.
E.
Bottle containing standard gas or pure air.
Concentration of the standard gas should be between 30 and 70% of the
detector's scale of measurement.
042
Figure 23 : calibration kit.
Use
Proceed as follows:
1. Connect the tube (Figure , rep. B) to the cap (Figure , rep. A) and to the
pressure release outlet.
2. Position the cap on the detector head of the detector being examined.
3. Gradually turn the knurled knob on the flow regulator (Figure , rep. C) ")
clockwise to obtain a flow of 30 to 60 l/hr.
4. Carry out the calibration only after the measurement has stabilized
5. Once calibration has finished, turn the knurled knob of the flow regulator
(Figure , rep. C) anti-clockwise and remove the cap (Figure , rep. A) from the
detector head of the detector being examined.