S301M CALIBRATION PROCEDURE
510181 S301M _Calibration_Procedure_R02
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7. To calibrate the device, scroll to Set Span** and change the span gas calibration value using this
procedure;
Calib
007
S301M
Status :
In calib...
Set Zero
Set Span
246
PPM
a. Using the right arrow, move the cursor to xxx PPM (span value field). Press Enter to select the
field (it’s editable when flashing).
b. Use the up or down arrows to increase or decrease the value, press Enter to validate the new
value.
c. Move the cursor back to Set Span and press Enter to start the calibration.
The device Span is being calibrated. The screen will display the device’s status as “In calib...” until the
calibration is complete.
*The device must be configured in the 301C’s database in order to be included in the device addresses
displayed on screen.
**When selecting Set Span, make sure that the device has been exposed to the appropriate calibration
gas.
Table I - Calibration Information
Gas
Scale
Warm-up
Flow Rate
C
3
H
8
0 – 50.1% LEL
15 min.
500 ml/min
CO
0 - 255 ppm
15 min
500 ml/min
NO
2
0 – 10.2 ppm
15 min.
500 ml/min
Comb
0 – 102% LEL
15 min.
500 ml/min
Figure I – Calibration equipment setup
Calibration Kit
Standard
Calibration Kit (58L or 103L cylinder)
Order Number
Description
SKS301MCOQ1
STANDARD CAL KIT FOR S301M CO, 103L (CO 200 ppm BAL N2)
SKS301MNO2Q1
STANDARD CAL KIT FOR S301M NO2, 58L (NO2 5 ppm BAL N2)
SKS301MC3H8Q1
STANDARD CAL KIT FOR S301M C3H8, 103L (C3H8 20% LEL BAL AIR)
SKS301MCOMBQ1
STANDARD CAL KIT FOR S301M COMBUSTIBLE, 103L (CH4 20% LEL BAL AIR)