ENMET AM-5150 - Manual (Page 10)

AM-5150 ENMET Corporation
8
4.0 Operation
When the AM-5150 is installed as described in Section 3, and in clean air, the POWER green LED is on, the display is lit and
the information on the display is measurement of the target detected by the AM-5150. The red alarm and fault LEDs are not lit.
4.1 Start Up AM-5150
When the AM-5150 is first powered up, it goes through a series of momentary screens, which identify the instrument model
number, serial number and software revision. After all of the momentary screens have been displayed, the instrument arrives at
the Main Gas Display showing the gas concentration and unit of measurement, ppm or %LEL.
Depending on transmitter configuration and calibration condition, the furthest right character in the display may flash a letter
indicating the instrument status. See the Section 4.1.1 below
4.1.1 Typical Start Up
When power is supplied to the AM-5150 , the instrument will display the following sequence of information:
Typical start up sequence of information displayed.
Example of Typical Start Up Display Function
The instrument: Model AM-5150
Example for reference only
The instrument: Serial Number
Example for reference only
The instrument: Software Revision
IF the right most character is a flashing W The instrument is in Warm-up mode
This should last about 1 minute
The Signal Output is held at 4mA during warm-up
IF the right most character is a flashing C The instrument has failed Calibration
The last good calibration values are retained, but the sensor
may not be responsive to gas
A new Calibration should be performed As Soon As Possible
OR
The instrument: Normal Display Mode
Measurement of the target gas
The instrument: in Purge Mode Display
Optional feature, not required in all instruments
The instrument: in Recovery Mode Display
Optional feature, associated with purge mode
N OTE : Software revision may cause variations of display output.
Prolonged storage of the AM-5150-MOS may result in some contamination of the sensor. Following start up, if the display
reads above 000 a sensor purge function should be preformed.
Sensor Purge: A sensor purge is performed to clean the
MOS sensor (Metal Oxide Sensor) of molecules that may have settled
on the sensor.
N OTE : Not all instruments are equipped with or require the Purge feature. To determine if the purge feature is operational.
Press and hold the S ELECT switch, 3 to 5 seconds, if purge feature is operational 0ppP appears in the display.
If the AM-5150-MOS is equipped with the purge feature, the display will alternate between 0ppm and 0ppP and the green
Power/Fault LED will flash. In approximately 2 minutes the purge function will be completed and the display will, alternate
between 0ppm and 0ppR indicating the instrument is in recovery mode. Recovery mode lasts approximately 5 minutes.
When the purge cycle is complete, the display will become stable at 0ppm and the green Power/Fault LED will stop flashing.
AM-5150
311- 20
S/W 6.6F
0ppW
0ppC
0ppm 0LEL
0ppm 0ppP
0ppm 0ppR