Single Gas Sensor Module (SGSM)
Operations Manual
Super Systems Inc.
Page 23 of 30
Page 23 of 51
To perform a sensor calibration, make sure that the system is set up to flow both zero gas (with
0% of the gas the sensor is designed to detect) and span gas when needed. The gases should be
“Certified Primary Standards” or equivalent accuracy. Then follow these steps.
1.
Note the percentages of the sensor gas in each gas source (zero and span).
2.
Ensure that the system is purged of any latent gas.
3.
Flow the zero gas until the gas reading on the web page stabilizes.
4.
Enter the target gas concentration in the “Enter gas concentration (%)” field.
5.
Press “Calibrate”. A Calibration Timer will count down.
6.
Once the Calibration Timer has counted down, the zero value will be calibrated.
NOTE:
The remaining steps for the span gas will be very similar to the steps performed for the
zero gas calibration.
7.
Ensure that the system is purged of any latent gas.
8.
Flow the span gas until the gas reading on the web page stabilizes.
9.
Enter the target gas concentration in the “Enter gas concentration (%)” field.
10.
Press “Calibrate”. A Calibration Timer will count down.
11.
Once the Calibration Timer has counted down, the span value will be calibrated.
Figure 9 - Sensor Calibration Page
Alarms
The Alarms page allows the user to set lower and upper limits to create an alarm condition that
can be setup and communicated through a Modbus register.
For the desired gas type, enter a Lower Limit and/or an Upper Limit for an alarm condition.
Select an Action from the dropdown menu and click the Submit button to save that information.