ENMET EX-5100 - Manual (Page 10)

ENMET Corporation EX-5100 C OMBUSTIBLE
8
5.0 Maintenance of the EX-5100
C AUTION : Do not open the EX - 5100 S/T in a classified area.
C AUTION : Do Not Attempt A Span Procedure Without Calibration Gas Applied to The Sensor; if this is done, the S/T is forced
into a calibration fault mode.
Magnetic switches control the M ENU and S ELECT functions. The M ENU and S ELECT switch locations are indicated on the
display panel, see Figure 3. The M ENU switch is used to display the various menu options and make incremental changes to
numbers such as alarm points, calibrations gas, etc. The S ELECT switch is used to select that option or entered digit. Most
maintenance functions are controlled by simple taps of the supplied magnet on the transmitter glass, below the M ENU and
S ELECT boxes on the front panel.
5.1 Maintenance Menu
To enter the maintenance menu hold the magnet over the M ENU switch for 2 to 4 seconds
Table 1 indicates the maintenance menu sequence see Figure 5 for a detailed maintenance menu flow chart.
Table 1: EX-5100 maintenance Menus Sequence
Example of Display Function
Normal Display Mode
Measurement of target gas
Hold the magnet over M ENU switch for 2 – 5 seconds to enter the Maintenance Menu
The Power/Fault LED will flash Green – Red to indicate the EX-5100 is in Maintenance Mode
To exit the maintenance Menu and return to the Normal
Display Mode:
If intended function Tap the magnet over S ELECT switch
Tap the magnet over the M ENU switch to advance to the Zero procedure
For adjusting Zero:
If intended function Tap the magnet over
S ELECT switch
Tap the magnet over the M ENU switch to advance to the Span procedure
For adjusting the Span:
If intended function Tap the magnet over
S ELECT switch
Tap the magnet over the M ENU switch to advance to each Alarm set point procedures
For adjusting the Alarm 1, 2 and 3 set points:
If Intended function Tap the magnet over
S ELECT switch
Tap the magnet over the M ENU switch to advance the mA Span set point procedure
For adjusting the mA Span set point:
If intended function Tap the magnet over
S ELECT switch
Taping the M ENU switch without taping the S ELECT switch will allow you to cycle through the menu options.
You must Tap the S ELECT switch win order to change the desired operation.
N OTE : If the S/T fails to respond, the magnet may have become weak and may need to be replaced.
0LEL
Exit
Zero
Span
mA Span
Alarm1
Alarm2
Alarm3