Calibration Handbook
21VA301EM
301IRFS / S301D2 with VA301EM Calibration Procedure
1. Warm-Up Period
Turn the unit on for a minimum of fifteen (15) minutes.
Check Calibration Information for specific warm-up time.
2. Connecting the Hardware
Plug the calibration adaptor onto the gas sensor inlet.
Screw the regulator to the calibration Span gas cylinder for the Span adjustment or Zero gas cylinder for
the Zero adjustment and set the appropriate flow rate.
VA301EM CALIBRATION INFORMATION
Gas Scale Warm-up Factor Flow Rate Notes
Combustible 0 - 102% LEL 15 min Table II 500 ml/min 1% Volume CH4 = 20% LEL CH4.
CL2 0 - 15.3 ppm 15 min N/A 500 ml/min
CO 0 - 255 ppm N/A N/A 500 ml/min
ETO 0 - 20.4 ppm 15 min N/A 500 ml/min
H2S 0 - 51.0 ppm 15 min N/A 500 ml/min
HCL 0 - 25.5 ppm 15 min N/A 500 ml/min
HCN 0 - 51.0 ppm 15 min N/A 500 ml/min
HF 0 - 10.2 ppm 15 min 0.2 500 ml/min Nitrogen dioxide is a surrogate gas for HF
NO 0 - 102 ppm 15 min N/A 500 ml/min
NO2 0 - 10.2 ppm 15 min N/A 500 ml/min
O2 0 - 25.5% N/A N/A 500 ml/min
SO2 0 -10.2 ppm 15 min N/A 500 ml/min
SIH4 0 -10.2 ppm 15 min N/A 500 ml/min
F2 0 – 2.6 ppm 15 min 1.3 500 ml/min CL2 is a surrogate gas for F2
Refrigerant
Rxxx
0 – 1000 ppm 15 min N/A 100 ml/min Replace the xxx by the required refrigerant
Connect the regulator outlet to the calibration adaptor.
Regulator
17-Liter 103-Liter
Calibration Span Gas Cylinder
301IRFS Calibration Installation
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