BTRM Battery Test Remote Monitoring System – User Guide V3.2 |
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2021 Ventev | LIT SKU: 09834
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1. Warnings
Carefully observe proper DC polarities connections for batteries, chargers, and loads.
*** Unit WILL be damaged by incorrect polarity connections ***
1.1.
BTRM300
Maximum rated Voltages for Battery, Charger, Power Supply, and Loads is 30 VDC
Maximum rated Current for Battery, Chargers, Power Supply and Total Load is 20 Amps
*** Unit can be damaged by exceeding these limits ***
*** Use of an Inline fuse is recommended to prevent over current conditions***
1.2.
BTRM400
Maximum rated Voltages for Battery, Charger, Power Supply, and Loads is 60 VDC
Maximum rated Current for Battery, Chargers, Power Supply and Total Load is 10 Amps
Alarm Connections CH1, CH2, CH3, CH4 rated for 60 VDC, 80ma max load.
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Observe correct polarity
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Do not exceed these ratings.
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Do not connect to AC line powered loads.
*** Unit can be damaged by exceeding these limits ***
*** Use of an Inline fuse is recommended to prevent over current conditions***
2. Supplied Equipment
Included in box:
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BTRM300 (Tessco SKU 281170)
or
BTRM400 (Tessco SKU 246962)
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3ft Ethernet Cable
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BTRM User Guide
3. Overview
As batteries age their capacity slowly deteriorate until they need replacement. Additionally, battery
capacity can be affected by extended operation under adverse conditions of high or low
temperatures, high discharge rates, under charging (in particular if left in a completely discharged
state for weeks or longer), charging voltages higher than recommended (this condition immediately
starts generating surplus hydrogen gas for which even Sealed Lead Acid Batteries are forced to
vent).
Although a battery’s state of charge can be inferred by monitoring the battery terminal voltage while in
standby mode, this voltage will not give an indication of actual capacity. Furthermore, a battery that is
marginal may not be detected until it is called upon to perform, at which point it is too late to prevent a
system failure. For a battery connected to a charger that maintains a float voltage, neither condition
can be checked.
In these cases, the BTRM is designed to evaluate battery capacity transparently to system operation
and provide network-based notification should a battery fail, or its capacity drop below a specified
level. This also has the advantage of allowing batteries that exceed their nominal lifetime to remain in
service, provided they meet capacity requirements.