AMC-UTx-M-xx-400 Series Digital Transmitter
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5.4 CALIBRATION
Sensors naturally degrade over time, losing about 2% of their sensitivity per month. Over time a
sensor will start to underreport gas concentrations, meaning that a calibration is necessary to
maintain a safe environment.
When the unit is due for calibration the Sensor Module LED will blink cyan-yellow as opposed to
its usual green to be able to see at a glance which sensor(s) is(are) overdue.
Information on Calibration Dates (when calibration is due, calibration frequency) can be found in
the UTx Menu.
Caution:
- Only qualified personnel should perform the actual calibration.
- Users new to gas calibration are advised to consult with Armstrong Monitoring
The Armstrong Monitoring Corporation offers the following calibration plans:
1. Factory pre-calibrated exchange replacement smart sensor 2 modules.
2. On site installation by Armstrong Monitoring.
3. On site calibration by Armstrong Monitoring.
4. Training by Armstrong Monitoring for end users.
For additional details please refer to Section 1.4 Contact Information.
.
5.4.1 REQUIRED EQUIPMENT; EXCHANGE PROGRAM
The following is a recommended list of equipment required:
•
Phillips and Robertson screw driver set
5.4.2 REQUIRED EQUIPMENT; ON-SITE CALIBRATION
For qualified personnel, the following is a recommended for calibration gas of AMC-UTx-M-
91A01-N-R-0400:
•
100ppm CO
The following is a recommended for calibration gas of AMC-UTx-M-98B01-N-R-0400:
•
300ppm CO
The following is a recommended for calibration gas of AMC-UTx-M-98A01-N-R-0400:
•
6ppm NO2