Ametek Thermox CEM O2/TM, User Manual

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3-32 | Thermox CEM O2/TM
Option Card Installation
This section shows you how to add an auto calibration card to the control
unit.
If you ordered this option when you first purchased your analyzer, this
option card will already be installed in your control unit. This section
shows you how to install an option card if you later add that option to the
control unit.
This section also shows you how to access the display module and power
supply/keypad module on the control unit in case you need to replace
these modules or change a component in them (for example, install new
software).
Remove power from the control unit before working on it.
Removing Display Module or
Power Supply/Keypad Module
This section describes how to remove or replace the display module or
power supply keypad module on the control unit (see Figure 3-25):
1. Open the access door below the display module (hinges down).
2. Pull on the handle of the power supply/keypad module and remove
this module from the control unit (it slides out). Note that the power
supply/keypad module must be removed before you can remove the
display module.
3. Reach under the display module and pull on the display module
handle to pull out the display module.
4. Reverse these steps to reinstall the display module or power supply/
keypad module.
Should you need to replace fuse F1 on the display module, it is a
Littlefuse type 273 microfuse or equivalent, voltage rating: 125V AC,
ampere rating: 50 mA.
Should you need to replace Fuse F1 on the wiring card is a Littlefuse
type 273 microfuse or equivalent, voltage rating 125V AC, ampere
rating: 250 mA.
See the beginning of this Wiring section for the location of the wiring
card on the controller.
NOTE
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