9.2.2 Battery Temperature Sensor Kit
The battery temperature sensor is used to detect the battery temperature. With this function, we can adjust the float charging
voltage of the battery to make it inversely proportional to the ambient temperature of the battery, so as to prevent the over-
charge of the battery at high ambient temperature.
Preparation
1. Tool: One cross head screwdriver.
2. Check whether the installation materials are all set, including: One battery temperature sensor.
Procedures
W ARN ING ! Install the battery tem peratu re sensor strictly in accordance w ith the follow ing
step s, or else, the UPS and battery m ay be dam aged.
W ARN ING ! W hen in stalling the battery tem perature sensor, turn off the UPS. During
installation, be sure not to tou ch the battery term inals, exposed copper bars an d co m ponents.
1. Power down the UPS completely.
a. Turn off the load.
b. All UPS indication goes off, wait five minutes for the internal DC bus capacitors of the UPS to discharge
completely.
2. Connect one end of the network cable with shielded RJ45 port to the battery temperature sensor and plug the
other end into the J2 dry contact port on the UPS bypass. The temperature sensor can be connected in series
with a maximum of 20 sensors and a maximum distance of 50 m.
3. Route and pack the cables in order. Note that the cables should be routed separately from the power cables, to
avoid EMI.
9 Options
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Vertiv™ Liebert® APM Plus User Manual
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