The Trusted Monitoring Partner
Sentry-S15 Telecom Battery Monitoring System
Sentry series compact battery monitors combine superior data quality and flexible installation to address cell site applications. Compatible with Battery Analyzer software, MyBattery Platform™ or other remote site management system with standard Modbus communication, Sentry monitors can be utilized for virtually every remote telecom application.
Sentry-0212S15 is specifically designed for 24V systems with up to 15 strings of 2x12V in parallel
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- Digital Wavelet Technology. Precise IR (Internal Resistance / Conductance) online measurement is performed on each battery. User selectable internal resistance or conductance data display
- No Noise/Interference to Power System. No need for high current discharge during internal resistance measurement
- Over Voltage Protection. Designed with over voltage input for each sampling channel
- High Resolution. 16 bit high resolution provides for clear and precise data acquisition
- Solid State Scanning. (rather than mechanical relay) provides the highest reliability for telecom site and industrial applications
- Modbus/RTU Communication. Provides high reliability and ease of integration
- Compact Design. Permits convenient installation on top, or inside of the battery cabinet/rack
- Access Data/Alarm from Anywhere. Firewall friendly Battery Analyzer software, plug and play, easy to manage large number of sites from anywhere via internet. Alarming through email, SMS and SNMP trap
- HMI Panel. The plug and play touch panel (optional) allows the technician to configure and calibrate without the need of a PC
- Supports Site/Building Management Systems. The system fully supports 3rd party network battery management systems with SNMP, Modbus TCP and hyperlink to real-time data
Key Features
|
Model |
Sentry-0212S15 |
|
Battery System |
Optimized for telecom 24V system with 12V batteries 2x12V, 3 to 15 strings (For 1 or 2 string, select Sentry-0212S2) |
|
Power Supply |
Powered by battery bank BUS, not by individual battery |
|
String Voltage |
Continuous monitoring with High/Low float charge voltage threshold and discharge Low setting |
|
float current |
Built-in proprietary float current measurement, no need for external sensor. |
|
Ambient temperature |
2 sensors (1 for ambient and 1 for pilot, or 2 locations for a battery bank) |
|
Individual battery voltage |
Flexible interval to report data, high/low threshold for floating and discharge |
|
Internal Resistance |
Wavelet technology to achieve unsurpassed IR precision. |
|
Enclosure |
Compact aluminum, mounts on battery rack or on top on battery bank |
|
Harness and installation |
Simplified wiring design for easy installation Pre-made/customized harness for quick installation enables large scale deployment Portable touch screen for onsite validation |
|
Battery discharge capture |
High resolution capture, no limit to time lapse, no limit to onboard memory size. Online access to discharge curve for every battery (with MyBattery Platform™) |
|
Generator Monitoring |
Optional analog port for fuel monitoring |
|
Network |
Instant drop-in, no field configuration. Ethernet compatible with static and dynamic IP. |
|
MyBattery Platform™ capacity |
Cloud based parallel computing No limit, validated with >10,000 sites |
|
Integration |
Standard Modbus RTU and Modbus TCP protocols. Software provides SNMP integration and SMS, email alarm delivery. |
Specifications
|
Battery System |
24V battery system (18 ~ 30V range) 2x12V per string, up to 15 strings in one DC system |
|
Power Supply |
Internal power converter. Maximum Consumption: 6W |
|
Isolation |
[email protected] to battery string |
|
Current Sensor |
Support LEM current sensor with internal +/-12V power supply (Default range +/- 400A, window size 20mmx10mm) |
|
Accuracy |
0.1% + sensor accuracy |
|
Temperature Sensors |
1 ambient temperature sensor, 1 pilot temperature sensor |
|
Temperature Range |
Measurement range: -20 to 60ºC, operating range: 5ºC to 40ºC (41ºF to 104ºF) 1 ºC accuracy |
|
Bus Voltage |
Range: 0 – 30V; Accuracy: 0.1% |
|
Input Range to Each Channel |
+/- 16V for 12V batteries |
|
Accuracy |
0.1% |
|
Internal Resistance/Conductance |
0 to 30mΩ, 0.01 mΩ resolution |
|
1-wire mode |
Total value of Internal Resistance + Connection Resistance. |
|
Serial Port |
Isolated RS-232C and RS-485 interface |
|
Protocol and Serial Settings |
MODBUS RTU, 9600-8-1-None |
|
Modbus address |
1 to 28, configurable with HMI |
|
Ethernet |
Onboard Ethernet LAN connection to Battery Analyzer or MyBattery Platform |
|
Wireless Option |
GSM/GPRS (PTCRB, AT&T, T-Mobile, Jasper, and Rogers Network certified) |
|
LED indication |
|
|
Alarm Outputs |
Service Alarm (Normal Close, Voltage-free, 60V 0.1A capacity) Urgent Alarm (Normal Close, Voltage-free, 60V 0.1A capacity) |
|
Dimension |
165W*31H*165L(mm) (Mounting bracket excluded) |
|
Mounting |
Magnetic Cup (default), DIN rail or customized bracket |
*Specifications subject to change without notice
