EX-5155
ENMET
5.0 Maintenance of the EX-5155-MOS
C
AUTION
:
Do not open the
EX-5155-MOS
S/T in a classified area.
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, set zero or span 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-5155-MOS maintenance Menus Sequence
Example of Display
Function
Normal Display Mode
Measurement of target gas
5ppm
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-5155-MOS is in Maintenance Mode
To exit the maintenance Menu and return to the Normal
Exit
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:
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:
Span
If intended function Tap the magnet over
S
ELECT
switch
Tap the magnet ove
r 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
Alarm1
Alarm2
Alarm3
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
mA Span
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 in 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.
Manual Release Date –
November 26, 2018
Manual Part No. – 80003-098
P a g e
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