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Power the Unit
1. Press lower left corner of front facade door to access power switch
inside (Fig. 5.1).
2. Press power switch to turn unit on (Fig. 6.1).
3. REF20i/25i units are equipped with rechargeable batteries. For
units equipped with a chart recorder, the 9 V battery back up must
be connected at the time of installation.
Controller Operation
Use and care of the LCD touchscreen
The LCD touchscreen utilizes capacitive touch technology. This will allow you to engage the functionality by
touching the screen with your fingers, even while you are wearing latex or cotton gloves. Functionality will not
engage by touching with an inanimate object, such as a pen or stylus.
§ To preserve optimal touch sensitivity, keep the screen clean by using a clean, dry cotton cloth.
§ Do not expose the screen to liquids or excessive dust, heat or humidity.
Control function icons and navigation buttons engage functionality of the user interface. Status indicators alert the
user to a change of status.
8
Fig. 5
Fig. 6
1
REF20i/25i 4S, 6B, 6D
1
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