Nautel XR12, Operation And Maintenance Manual

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XR12 Operations and Maintenance Manual Routine maintenance
Page 4-4 Issue 3.1 2013-03-14
Parts and tools
Replacement battery. 3 V lithium coin cell, 20 mm (Nautel Part # BBLT01, Panasonic # Panasonic
CR2032).
Procedure
Perform the following steps to replace the battery:
1. Ensure ac power is being applied to the transmitter.
2. Open the front panel of the transmitter.
3. Replace the battery in XBT1 on the control/display PWB. See Figure MD- 3 in the
mechanical drawings section at the end of the XR12 Troubleshooting Manual .
4. Close the front panel.
5. Check for any alarms on the graphic user interface.
(See “Viewing alarm status” on page 2-7 .)
Inspecting lightning protection systems
You should inspect the lightning protection systems that are connected to your XR12 transmitter, ac
power, RF feedline, antenna and tower periodically to ensure that your site, equipment and personnel
are fully protected.
Interval
Every 6 months.
Parts and tools
Depends on your site, but may include a DVM, ladder, binoculars, and continuity tester.
Procedure
Perform the following steps to test the lightning protection systems:
1. Test the continuity between ground available at your lightning arrestor and ground available
on various pieces of equipment connected to the transmitter. Ensure that there is no
resistance (0 ohms).