Va301M Calibration Procedure - Honeywell VA201T Calibration Handbook

VA301M Calibration Procedure

1. Warm-Up Period
If the VA301M doesn't have a display, remove the cover and plug in a cover with display in J3.
Turn the unit on for a minimum of five (5) minutes.
Check Calibration Information for specific warm-up time.
2. Connecting the Hardware
Screw the regulator to the appropriate calibration gas cylinder.
Adjust the regulator with the suitable flow rate.
Plug the calibration adaptor onto the gas sensor inlet.
Connect the regulator outlet to the calibration adaptor as shown.
3. Adjusting the Zero (if required)
This must be achieved in a well ventilated area where there is no presence of the target gas.
If you suspect the presence of the target gas in the area, inject zero gas at the specified flow rate for a
minimum of 2 minutes prior to doing a Set Zero.
Press the Enter key, and using the Scroll key enter the VA password.
Using the Scroll key select Zone 1 (built-in CO sensor) or Zone 2 (remote sensor) and press Enter.
Scroll to get the Set Zero menu.
Press Enter to start the zero calibration.
Wait will be displayed on the screen until calibration is completed.
Scroll until Back is displayed, press Enter.
Scroll until Quit is displayed, press Enter to exit.
VA301M / S301M
VA301M CALIBRATION INFORMATION
Gas Scale
CO 0 - 250 ppm
NO2 0 - 10 ppm
C3H8 0 - 50% LEL
CH4 0 - 100% LEL
H2 0 – 100% LEL
Calibration cap
Calibration Handbook
Warm-up Flow Rate
5 min 500 ml/min
5 min 500 ml/min
15 min 50 ml/min
5 min 500 ml/min
5 min 500 ml/min
58 Liter
Calibration
Gas Cylinder
27
103 Liter
Calibration
Gas Cylinder
or