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5. Installing the Sensor Cartridge
The Midas
sensor cartridge is supplied separately and needs to be fitted to the
®
detector's main chassis. The following steps and diagrams detail the procedure for
installing the sensor cartridge for the first time. This procedure is carried out with the
power off and the detector cover removed.
1.
Verify the part number and type of sensor cartridge is correct for your
application, then remove sensor cartridge from packaging.
2.
Remove cap from cartridge.
3.
Add label for secondary gases (if necessary).
4.
Align pins at the top of the sensor cartridge with the socket in the sensor
cartridge chamber.
5.
Carefully push the sensor cartridge into the sensor cartridge chamber until fully
seated.
6.
Lock the sensor cartridge in place using the tabs on either side of the sensor
cartridge to secure the cartridge to the main chassis.
7.
Switch the power switch on the terminal module to the 'on' position.
8.
Reattach the detector cover by aligning the slots on either side with the locating
tabs on the mounting bracket assembly.
9.
Push the cover horizontally until fully seated.
10.
Tighten the thumbscrew on the front panel.
How cartridge is fitted
chassis
Note:
In a first-time start up, an F49 or F88 fault code may be displayed; there is no actual fault and the fault
message can be cleared by depressing the 'X' button for a few seconds.
To properly activate the Midas
•
When "ChAngE gAS" or "FIrSt CELL" scrolls on the display, hit the '✓' on the Midas
panel.
•
When the "reboot" completes then press and hold the "X" to clear any latched fault(s).
•
Confirm that the green LED is flashing.
•
Confirm that the yellow and red LEDs are off.
•
Confirm the display shows a concentration of zero (as appropriate).
The cartridge has now been accepted by the Midas
If the above steps were not performed at initial start-up, then remove the cartridge and cycle power. Once the
Midas
has completed the "reboot" process, install the cartridge to be used and repeat the steps above.
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Diagram 6. Installing the sensor cartridge
How cover is fitted
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cartridge
tabs
with a cartridge for the first time:
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®
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?
cartridge fitted
as the correct type.
tighten
slots
front
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