8.2 Light Bulb, Display Backlighting and Push Button Information
You may notice that the light bulbs flicker slightly while the pens are moving.
The flickering stops once the pens are stationary.
The light bulbs on the chart base of the recorder are long-life specialty bulbs.
Even though they last a very long time, they will burn out eventually. Always
replace both bulbs. The part number for ordering 10 bulb/holder assemblies is
listed on the inside back cover. One extra pair of bulb assemblies is supplied
with the recorder.
When removing the bulbs, grasp the bulb holder that contains the bulb and pull
it out. Do not pull on the bulb itself. When reinserting the new bulbs in the
sockets, orient the bulbs to fit as shown in Figure 8-1.
Figure 8-1. How to Hold the Bulb Assembly and Where the Bulbs are Located
In the event that the ac power to the recorder is cut off (e.g.,
blackout), the recorder will continue to operate with the 4 “D”
size backup batteries. The chart lights and the display
backlighting operate on ac power only.
The recorder is equipped with a push button located on the chart base. This
push button turns on and off the chart light bulbs as well as the display
backlighting. One press of the push button turns on the lights and a second
press turns them off. Figure 8-2 shows the location of the push button.
Figure 8-2. Push Button Location
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Light Bulb
Push Button
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NOTE
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Maintaining the Recorder
8
8-2
Summary of Contents for CT485B-110V-G-AL
Page 23: ...Setting Up the Recorder 2 2 14 Notes...
Page 27: ...Powering Up the Recorder 3 3 4 Notes...
Page 33: ...Alarm Operation 4 4 6 Notes...
Page 43: ...Using the Cal Lock Kit 6 6 2 Notes...
Page 45: ...Using the Voltage Input Adapter Optional 7 7 2 Notes...
Page 49: ...8 4 Notes Maintaining the Recorder 8...
Page 57: ...Specifications 11 11 4 Notes Notes...
Page 59: ...CE Approval 12 Notes 12 2...
