Single Gas Sensor Module (SGSM)
Operations Manual
Super Systems Inc.
Page 25 of 38
Page 25 of 51
Figure 11- Output Configuration Page
Output Calibration
The SGSM is equipped with two analog outputs. These outputs require calibration to ensure that
the mA signal corresponds to a given output value (zero value for the lowest value and span
value for the highest value). SSi suggests that this device should be calibrated on a routine
basis, such as once a year or as prescribed by the user’s quality system requirements.
To calibrate each output, first make sure that you have a multimeter (or other appropriate
testing instrument) available. SSi recommends that each time an output is calibrated that a zero
calibration is performed first and the span calibration is performed second. SSi also
recommends that both a zero and span always be performed together. Calibration steps are
provided below.
1.
Select the output value that you wish to calibrate (Zero Output 1, Span Output 1, Zero Output
2, or Span Output 2).
2.
Press “Prep for Cal” to enter calibration mode.
3.
Ensure that the output signal is being sent for the span or zero value (whichever you are
calibrating for).
4.
With a multimeter, measure the mA value at the output. Enter that value in the “Entered
Measured value” field and press “Calibrate”.