Bacharach MGS-150, Инструкция по установке и эксплуатации

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MGS-150 Manual
30 6309-9000 Rev 2
6.6. Calibrating Electrochemical (EC) Sensors
There are two adjustments required: zero and span. They are monitored
at 0V and VS using a 0-5V scale. If the sensor range is 0-1000 ppm,
then 5V=1000 ppm.
Step Calibrating Electrochemical (EC) Sensors
1 Locate Pot VR201 which is used to adjust the zero point.
2 Monitor the output between 0V (negative) and VS (positive).
3
Adjust Pot VR201 to 0V or slightly positive (0.01 V is
acceptable).
4
Locate Pot VR202 which is used to calibrate the range (span)
of the sensor.
5 Monitor the output between 0V (negative) and VS (positive).
6
Expose the sensor to calibration gas and allow to stabilize
(approximately 3 minutes).
7
Adjust pot VR202 to the voltage calculated in section 6.4
(page 29).
6.7. Calibrating Infrared (IR) Sensors
Step Calibrating Infrared (IR) Sensors
1 Locate Pot VR203 which is used to adjust the zero point.
2 Monitor the output between 0V (negative) and VS (positive).
3
Expose the sensor to nitrogen or zero air until output is stable
(approximately 3 minutes).
4
Adjust Pot VR203 to 0 V or slightly positive (0.01 V is
acceptable).
5
Locate Pot VR202 which is used to calibrate the range (span)
of the sensor.
6 Monitor the output between 0V (negative) and VS (positive).
7
Expose the sensor to calibration gas and allow to stabilize
(approximately 3 minutes).
8
Adjust pot VR202 to the voltage calculated in section 6.4
(page 29).