39
4.
Connect the Firetron 1000 to the Calibration Gas and Bubbler as indicated in the diagram. Set
bottle regulator to 10 psi output pressure. With the Firetron 1000 drawing sample gas, adjust
needle valve to get slight overflow of gas, as indicated by bubbles in the overflow pipe.
5.
Enter the concentration of the calibration gas and press enter.
6.
Wait for the gas reading to stabilize before pressing the 'CAL' key.
7.
Press 'CAL' to begin calibration.
8.
Use the 'EXIT' key to return to the gas selection display. Turn off calibration gas and remove
connecting pipe.
NOTE: This arrangement enables the pressure at the gas inlet on the Firetron 1000 to be controlled.
6.5
CALIBRATION USING A FLOWMETER (not supplied)
As an alternative indication of gas overflow, the beaker in the Section 6.4 can be replaced with a
flowmeter. Adjust the needle valve in the flowmeter to indicate a positive flow.
Calibration gas can be poisonous. Only use the unit in areas that have adequate ventilation.
If you begin to feel dizzy or lightheaded, immediately turn off your calibration gas supply
and seek out an area of fresh air.
NOTE: This arrangement enables the pressure at the gas inlet on the Firetron 1000 to be controlled.
CALIBRATION GAS
3 ENTRY SEALED CONTAINER
(APPROX. 2 LITRE)
FIREYE 2000
CALIBRATION GAS
FIREYE 2000
T JUNCTION
PRESSURE REGULATOR
WITH NEEDLE VALVE
GAS
INPUT 1
