F-940 Instruction Manual rev. 11/26/2019
1554 NE 3
rd
Ave, Camas, WA 98607, USA
80
Phone: (360) 833-8835
www.felixinstruments.com
Continuous Mode Verification
*Performed after set span
The following procedure is to check whether
the sensors were calibrated to read within spec
of the actual gas value. For C
2
H
4
, O
2
, and CO
2
,
refer to the specifications table on page 9.
It is highly recommended that this step be
performed after one full day has passed
since the calibration was performed. If this
step is not performed, accuracy of the
calibration cannot be verified.
Connect and read each gas and record the
results here after three minutes (at least) of
measure time. If any of the values are out of
specification, check your procedure and
recalibrate the sensor again.
Gas
Concentration Pass/Fail
Air (~20.9% O
2
)
20.9% O
2
□Yes □No
CO
2
Verification
Gas
□Yes □No
O
2
Verification
Gas
□Yes □No
C
2
H
4
Verification
Gas
□Yes □No
For information on sourcing known gases
required for calibration, please refer to the
following website to inquire about your region:
https://www.airliquide.com/group/where-we-
operate
Содержание F-940
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