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15
BATTERY REPLACEMENT
TRANSMITTER
When the Low Battery Indicator
6
illuminates, the batteries must be
replaced:
1. Loosen 2 screws and remove Battery Cover
7
.
2. Remove and recycle spent batteries.
3. Install 6 new AA 1.5V batteries (4 inside battery door, 2 inside unit
housing), noting proper polarity.
4. Replace Battery Cover and tighten screws. Do not overtighten.
RECEIVER
When the Battery Status Indicator
17
shows only 1 bar, the batteries
must be replaced.
1. Loosen screw and remove Battery Cover
7
.
2. Remove and recycle spent batteries.
3. Install 4 new AA 1.5V batteries, noting proper polarity.
4. Replace Battery Cover and tighten screws. Do not overtighten.
FUSE REPLACEMENT
A fuse may blow if more than 600V energized is applied to the ET450
Transmitter. To access fuse:
1. Loosen 2 screws and remove Battery Cover
7
.
2. Replace blown fuse with 500mA/600V fast-blow, interrupting
rating 50kA.
3. Replace Battery Cover and tighten screws. Do not overtighten.
To avoid risk of electric shock:
•
Disconnect leads from any voltage source before removing
battery cover.
•
Do not operate while battery cover is removed.
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