5100-03-It Oxygen Deficiency; 5100-88-It Carbon Dioxide - MSA SMC 5100-IT Series Operating Manual

6 Calibration
Function Display
C 25PPM
Enter CAL-FAIL
WAIT-300
Mode (Any)
XXXPPM

6.5.1 5100-03-IT Oxygen Deficiency

It is recommended to use fresh Air as the calibration source for the Oxygen detector. If the area is known to be safe with
adequate air flow, you may use the surrounding Air to set the instrument span at 20.9 %. If the condition of the environment
is unknown, then the customer may use a cylinder of Zero Air as the span gas. Please note that the Oxygen concentration
contained in Zero Air cylinders may have anywhere from 20.0 to 21.0 % Oxygen as it is not a precise standard.
To calibrate the Oxygen sensor module, place the module into the calibration mode using the magnetic wand. Press the
Mode key until CALIB is displayed. Press Enter to begin. Select Calibration value to be 20.9%. Press Enter to confirm. Apply
span gas or use the surrounding Air then press Enter to complete procedure.
NOTE: The Analog output values to be transmitted during the calibration procedure are selected in the
maintenance configuration. Normal 20.9% value provides 17.3 mA.

6.5.2 5100-88-IT Carbon Dioxide

The CO transmitter also has a span only calibration adjustment. There is no zero adjustment or requirement to apply Zero
2
gas. To calibrate the CO detector, place the module into the calibration mode using the magnetic wand. Press the Mode
2
key until CALIB is displayed. Press Enter to begin. Select calibration value, typical 2500 ppm, and press Enter to confirm.
Apply span gas for at least 3 minutes or until stable. Press Enter to complete procedure.
The alternate measurement range of 0-5 % Volume can be purchased. Use 2.5 % VOL CO2 to calibrate this detector.
Follow above calibration procedure using 2.5% as span value.
34
Operation: Apply calibration gas
Operation: No calibration gas applied, or sensor did not respond correctly.
Operation: Five minute time out before sensor is returned to service.
Operation: Hold magnet over Mode Switch for ten seconds to abort calibration
Banner: Calibration Aborted
Default Display
SMC 5100-XX-IT Toxic Gas Detector Module
Description
US
Reference
Sub C