Start-Up And Calibration; Initial Startup - MSA PrimaX IR Manuel D'utilisation

MSA
4

Start-up and Calibration

4.1

Initial Startup

The device is factory-calibrated and ready for use. The device provides a 4 - 20 mA
output signal that can be used in conjunction with data acquisition controllers. The
digital HART signal that is superimposed on the 4 - 20 mA output can be read by
control systems that are in compliance with HART Revision 7.0 format.
During device operation, the 4 - 20 mA output signal is updated once/second and
provides the information shown below:
4-20 mA Output Levels [Default Values]
OPERATION
SAFETY CRITICAL FAULT
*FAULT
*OBSCURATION OR DIRTY
OPTICS
*POWER UP OR SENSOR
CALIBRATION
*CLEANING MODE
NORMAL
OVERRANGE
*Output levels are customer configurable between 2.0 – 3.5 mA via the HART interface.
See the Hart Specification on the product CD for more information.
Transient Fault conditions will be automatically cleared when the unit recovers from
the fault condition.
US
4 - 20 mA
0.0 mA
2.0 mA
2.5 mA
3.0 mA
3.5 mA
Gas value scaled from
4 - 20 mA
for 0 - 1 00 % LEL
20.0 - 20.5 mA
PrimaX IR
Start-up and Calibration
Definition
Sensor failure.
Communications not
available to sensor
Problem detected.
Status available via
HART interface
Light path is blocked
Unit power was recently
applied or calibration in
process with Cal Signal
Enabled
Defined in chapter 5
>100% LEL gas is de-
tected by the device
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