ELM-Series Battery Electrolyte Level Monitor & Battery Temperature Sensor

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The Eagle Eye ELM-Series Battery Electrolyte Level Monitor is a reliable dual sensor system that monitors the electrolyte level and temperature of individual flooded batteries. Utilizing low-cost, easy to install sensors, the system will alarm on low electrolyte level or higher than normal temperature. The sensors are simply and securely attached, either directly to the battery jar, or via an optional clip which allows the sensor to be removed and re-used if the cell should require replacement. The ELM-Series battery electrolyte level monitor and sensor is customized to work for any flooded battery system. Each battery system receives (1) ELM-Monitor and the number of sensors per cell.

The ELM-Series battery electrolyte level monitor is commonly used in the power utilities market. The ELM-Series will comply with NERC PRC-005-2 guidelines that require electrolyte level monitoring. When the ELM-Series is integrated with Eagle Eye’s stationary battery monitoring systems NERC PRC-005-2 compliance will be met.

Description

In the condition of a low electrolyte or temperature alarm, the sensors communicate to the system monitor and the system monitor activates a changeover relay output while simultaneously activating the appropriate alarm LED lights. The LED light will indicate either ‘low electrolyte level’ or ‘cell over-temperature’. In the event that four or more cells fall to an alarm level, the monitor will trigger a group alarm in addition to the single cell alarm. The alarm contacts are volt-free and can be made as ‘make-on-alarm’ or ‘fail-safe’ mode (giving warning of a supply failure) and may be linked in to any facilities management or alarm system for remote battery monitoring.

LED Indicators For:

  • 1-3+ Cells Low Level
  • 4+ Cells Low Level
  • 1-3+ Cells Critical Temperature
  • 4+ Cells Critical Temperature
  • Power Failure

The ELM-Series Electrolyte Level Monitor is an easy-to-install battery temperature monitoring solution. The non-invasive system is applicable to any flooded battery system regardless of voltage and amp-hour. The ELM-Series utilizes commonly available cabling between sensors – allowing easy sourcing of additional materials. The battery electrolyte level monitoring system saves time & money by continuously monitoring electrolyte levels and eliminating the need for scheduled periodic testing & maintenance. Markets that use lead-acid batteries have to perform periodic testing to ensure the battery’s life. Hydrometers are one of the most common testing methods – but they can be time-consuming and allow possibilities for errors and safety risks. The ELM-Series is a real-time solution for monitoring battery electrolyte and temperature levels – allowing 24/7 protection.

Benefits

  • Low cost monitor for electrolyte level & jar temperature monitoring
  • Alarm contacts for external alarming
  • LED lights on monitor and sensors for visual alarming on-site
  • Easy to install, site survey not required for order
  • Applicable to any flooded battery system regardless of voltage & amp-hour
  • Utilized commonly available cabling between sensors for easy sourcing of additional materials
Battery Types: Compatible with all transparent flooded battery types
Temperature Alarm Activation: 35 °C (95 °F), ± 2 °C (3.5 °F)
49 °C (120 °F), ± 2 °C (3.5 °F)
63 °C (145 °F), ± 2 °C (3.5 °F)
Optional: No temperature alarm
Level Accuracy: ±2 mm (± 0.08”) above or below line label
Input Voltage: 12 VDC, AC/DC wall adapter included standard
Additional voltage inputs available with optional PSU
Output Relays SPDT volt-free contact relays for:
1+ low electrolyte level detection
4+ low electrolyte level detection
1+ high temperature detection
4+ high temperature detection
Dimensions:
(L x W x D)
Monitor: 176 x 80 x 51 mm (6.9 x 1.6 x 3 in.)
Sensor: 54 x 35 x 15 mm (2.2 x 1.4 x 0.8 in.)
Sensor Cradle: 65 x 52 x 14 mm (2.6 x 2.1 x 0.6 in.)
Cables: 1.25mm pitch at length of 305 mm (12 in.)

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