AMC VersaTox, Инструкция по эксплуатации

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Note:
When the gas concentration exceeds the calibrated range then the display will
alternate between the reading value and the letters “OFL” for overflow.
5.2 CALIBRATION
This calibration procedure is suitable for all versions of the AMC-VersaTox.
Every AMC-VersaTox sensor/transmitter is factory calibrated, so each unit should be ready for
operation after installation and a 30 minute stabilization time.
Subsequent calibration is required as a part of regular maintenance, and when replacing the
sensor. See the Maintenance section of this manual for the recommended calibration schedule.
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 replacement sensor/transmitter units
2. On site installation and calibration by Armstrong Monitoring
3. On site calibration by Armstrong Monitoring
4. Training by Armstrong Monitoring
5. Extended warranty calibration program
5.2.1 ON SITE CALIBRATION EQUIPMENT REQUIRED
For qualified personnel, the following is a recommended list of calibration equipment required.
•
A digital multi-meter with ranges of 20.0 mA or more and 200 mV or more.
•
A “Remote Calibration Lead” (P/N 2900-01) for the above meter (available from AMC)
•
A set of “clip on” type test leads for the above meter
•
Miniature screwdriver trimmer adjustment tool
•
Calibration adapter, available from AMC
•
Zero & Span gases (contact AMC for information)
•
Clean, low static cloth or tissue to cover sides of sensor during calibration
5.2.2 CALIBRATION PROCEDURE
The transmitter is equipped with a remote calibration feature allowing for one-man calibration at
the transmitter location. The transmitter output is measured using the plug-in type “Remote
Calibration Lead”. In most cases it is only Zero and Span adjustments that are made in field
calibrations.