Product Description
Sentry-NB8 monitoring unit provides powerful functions for online state-of-health battery management for large scale remote telecom cabinets or stations. The compact design makes it suitable for any size indoor/outdoor cabinets with 12V or 6V battery blocks. It combines superior data quality and flexible installation for effective remote battery management according to the IEEE updated standards:
IEEE Std. 1188 – 2005: Recommended Practice for Maintenance, Testing, and Replacement of Valve-Regulated Lead- Acid (VRLA) Batteries for Stationary Applications (IEEE Link)
IEEE Std. 1491-2012: IEEE Guide for Selection and Use of Battery Monitoring Equipment in Stationary Applications (IEEE Link)
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Onboard Battery State of Health (SOH and SOC) analysis.
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Reliable Remaining Runtime prediction.
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Compatible with MyBattery Platform™ for large scale deployment
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Easy integration to existing site management software
- Internal Resistance / Conductance online measurement for each block
- Site configurable for 1 to 2 strings
- Instant drop-in with no field configuration
- Affordable for large scale deployment
- Serial version (Sentry-S2) available with RS232/485 for 3rd party integration
Specifications
| Power Supply | |
| Power Input | Internal DC/DC converter, 36-60V input; Maximum Consumption: 3W |
| Current/Temperature Measurement | |
| Current Sensor
(Optional) |
Support LEM HASS current sensor with internal +5V power supply
(Default range +/- 100A, window size 20mmx10mm) |
| Accuracy | 0.1% + sensor accuracy |
| Temperature Sensors | 1 ambient/pilot temperature sensor |
| Range | Measurement range: -40 to 65⁰C |
| Accuracy | 1 ⁰C |
| Voltage Measurement | |
| Battery | 4 x12V and 8x6V battery, up to 200Ah
1 to 2 strings |
| Bus Voltage | Range: 36 – 60V; Accuracy: 0.1% |
| Input Range to Each Channel | +/- 18V for 12V batteries |
| Accuracy | 0.1% |
| Internal Resistance | |
| Range and Resolution | 0 to 30mΩ, 0.01mΩ resolution |
| Wire mode | 1-wire mode Internal Resistance for each battery block |
| Communication | |
| Ethernet | Onboard Ethernet DTU
Compatible with Battery Analyzer software and MyBattery Platform |
| Indication and Alarm | |
| LED indication |
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| Alarm Outputs | Service Alarm (Normal Close, 0.1A capacity)
Urgent Alarm (Normal Close, 0.1A capacity) |
| Dimensions | |
| Unit Dimensions | 130mm(L) x 80mm(W) x 30mm(D) |
| Mounting | Magnetic Cup |
*Specifications subject to change without notice
