BW Technologies MicroDock II - Gas Application Rules

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MicroDock II
Order of Gases Applied for Bump Tests and Calibrations
Table 20. Gas Application Rules
Rule # Gas Type Apply Exception(s)
1
PH
3
First
Two exceptions: NO
2
and O
3
2
HCN First
Three exceptions: PH
3
and ClO
2
3
NO
2
First Three exceptions: HCN
4
H
2
S
Last One exception: PID
5
CO Last One exception: PID
6
COSH (H
2
S/CO)
Last One exception: PID
7
PID Last No exceptions
8
Toxic gas
Both toxic sensors are cross sensitive to each other – wait 5 minutes (minimum) between
calibrations before verifying sensors.
9
2nd Toxic gas
Wait 5 minutes (minimum) after the second toxic gas is applied before verifying calibration.
Verify calibration: Apply the same test gas from a different cylinder to ensure the calibration
is successful.
10
Cross gas Must perform individual calibrations to avoid incorrect calibration from cross gas
11
H
2
S/PH3 H
2
S contaminates PH
3
– calibrate and verify PH
3
sensor prior to applying any quad gas