P 1, 2, 3 & 5000 Ex Ion Science Ltd
Page 23 of 52
Instrument Menu
Calibration (continued)
4. Refit the lamp and select Escape.
5. Scroll down and select the flashing ZERO
6. Remove the caps from both ends of the carbon canister included in the Cal Kit Sample supplied with
your P, remove the probe and filter from the instrument and fit the carbon canister.
Alternatively a known clean air supply can be used. Note – the carbon canister simply pushes onto end
fitting - do not force and no turning is required.
7. Press the Enter key to start the 'Zero' process. A counter will count down showing
how long the canister needs to remain connected.
8. At the end of the count down a tick '
ü
' will appear, indicating that the Zero has
been accepted. Press Escape.
9. Disconnect the carbon canister and replace the cap ends. The useful life of the
carbon canister will be shortened if the canister is open to atmosphere for
prolonged periods.
10. Scroll down and select the flashing VOC.
11. The next screen shows the gas and gas concentration you have previously set up
via the IonPC software. Select Enter.
12. A screen will show VOC, a gas bottle and a flashing highlighted number.
13 .Present the instrument with the calibration gas and press enter, the number will
begin to count down showing how long the instrument needs to be presented
with the gas. A tick '
ü
' will appear indicating that the calibration has been
accepted. Escape out of the calibration menu.
14. Now replace the instruments filter and probe ready for use.
15. Carry our a Bump Test to ensure calibration was successful. Instrument is now
ready for use.
If you are not successful in calibrating the instrument check the following points:-
·
The carbon canister may be contaminated
·
The calibration gas canister may be low or empty
·
If using a connector pipe there may be a kink restricting the flow of gas
·
PID lamp may require cleaning
·
PID lamp may need replacing