RKI Instruments SC-01 - Manual (Page 30)

25 • Setup Mode SC-01 Operator’s Manual
WARNING: Calibrate the SC-01 in a non-hazardous environment.
1. Before performing a span adjustment, perform a fresh air adjustment as
described above in “Performing a Fresh Air Adjustment”.
2. Use the sample tubing to connect the calibration cup to the regulator.
The 81-1139RK calibration cup (used for all gases except Cl
2
and NH
3
)
has a label on it that indicates the required flow direction through the
cup. If the 81-1139RK calibration cup is used, make sure to connect the
sample tubing to the appropriate fitting so that the calibration gas flows
through the calibration cup in the direction indicated on the label.
WARNING: If the 81-1139RK calibration cup is used and the sample
tubing is not connected to the correct fitting on the
calibration cup, the calibration will not be accurate.
Table 5: Required Calibration Cups & Calibration Flow rates
Target Gas
Required
Calibration Cup
Required
Regulator,
Flowrate
Flow Direction
Specified on
Calibration Cup
Ammonia (NH
3
) 81-1139RK-NH3 81-1051RK-25,
0.25 LPM No
Arsine (AsH
3
) 81-1139RK 81-1051RK,
0.5 LPM Yes
Carbon Dioxide (CO) 81-1139RK 81-1051RK,
0.5 LPM Yes
Chlorine (CL
2
) 81-1139RK-CL2 81-1051RK,
0.5 LPM No
Hydrogen Cyanide (HCN) 81-1139RK 81-1051RK,
0.5 LPM Yes
Hydrogen Sulfide (H
2
S) 81-1139RK 81-1051RK,
0.5 LPM Yes
Phosphine (PH
3
) 81-1139RK 81-1051RK,
0.5 LPM Yes
Sulphur Dioxide (SO
2
) 81-1139RK 81-1051RK,
0.5 LPM Yes