Checking Gas Sensitivity - Teledyne OLCT 60 User Manual

OLCT 60
FIXED POINTGAS MONITOR
USER MANUAL
4. Apply the gas (flow regulator set to 0.5-1.0 liter per minute (LPM). For GD10P versions refer to
GD10P manual.
5. Once the measure is stabilized (approx. 2 minutes), read the value on the display (rep. A).
6. If the expected value does not comply, proceed with the calibration (paragraph
sensitivity adjustment

Checking gas sensitivity

7. Continue with
3.7 Checking gas sensitivity
For safety reasons, this procedure must be carried out after the control of the zero (page 18).
Proceed as follows:
1. Once the detector is zeroed, connect the calibration cup to the calibration gas cylinder (Pos.
E) by using a tubing in PTFE (Pos. C) to prevent the adsorption of reactive gases (i.e.: HCl,
SO2, Cl2, etc.) at the surface of the tube.
2. Open the valve on the gas cylinder (flow rate 0.5 to 1 LPM. In the case of GD10P versions
refer to GD10P manual.
3. Once the measurement is stabilized (approx. 2 minutes), read the value on the display (rep.
A).
4. If the expected value does not comply, proceed with the calibration (paragraph Zeroing and
sensitivity adjustment, on page 26).
5. Close the valve (rep. D) of the gas cylinder and remove the calibration cup (rep. B). Wait for
the measurement to return to zero and reset the alarms on the controller. The control of zero
and gas sensitivity is now completed.
20
, on page 26).
on the next page.
Figure 27: Checking gas sensitivity
Zeroing and
NPO60GB
Revision F.2