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30 Freedom SW 2000 Installation Guide
Installing the Inverter/Charger
Mounting to the Negative Battery Terminal
To mount the sensor on the negative battery terminal:
1. Select the battery to be monitored. The BTS should be connected to
the battery bank that is directly connected to the inverter/charger.
2. Switch off all devices operating from the battery, or open the battery
switch (if present) to disconnect the battery.
3. Wait 10 minutes for any explosive battery gases to dissipate.
4. Remove the nut that connects existing wiring ring terminals to the
battery negative terminal stud.
5. Move or reorient the existing wiring ring terminals on the battery
negative terminal stud, so there is a flat surface on which to seat the
BTS mounting plate.
You may need to bend the ring terminal crimp and/or wires slightly
downward to allow the sensor to seat flush to the top surface of the
upper ring terminal.
6. Mount the sensor directly on top of the ring terminal, as shown in
Figure 7, and firmly tighten the terminal nut.
7. Check to ensure that the sensor and all wires are held firmly and
cannot be moved.
8. Turn the battery switch on again (if you opened it in Step 2.)
9. Route the sensor cable to the inverter/charger and plug it into the BTS
jack, as shown in Figure 8. Secure the cable along its length.
Figure 7
BTS Mounted on the Negative Battery Terminal
Negative (–)
battery terminal
FIRE HAZARD
In this procedure, you must install the DC wire on the battery terminal,
then install the sensor on top of the DC wire. This sequence is required to
provide the best connection to the battery and to ensure correct
performance of the sensor.
Failure to follow these instructions will result in death or serious
injury.