Sentinel UL150 models include a self-diagnostic circuit for monitoring charge fail fault conditions (AC supply/fuse failure, DC fuse failure or low/no charge current), with a solid-state relay output for driving a remote alarm or fault annunciator. Enclosed NFPA models have NFPA 110 compliant alarms for AC failure, charge fail, high battery volts and low battery volts.

Calibration figures shown are at 20 ºC. If temperature compensation is enabled and remote SNTL-RTC temperature sensor is connected, output voltage automatically varies by 3 mV per cell per 1 ºC deviation from 20 ºC, within the range -10 to 50 ºC. Increasing temperatures give decreasing outputs; decreasing temperatures give increasing outputs.

All models feature an intelligent, multistage charge regime. During charge recovery mode, the Sentinel gives a constant (maximum) current output. As the battery approaches peak charge, the output reverts to float charge mode, maintaining an optimum cell voltage and supplying additional standing load current up to the rated maximum. Output current is always limited to the rated maximum, even during high load (e.g., engine cranking), short-circuit or reverse polarity connection.

AutoBoost provides a temporary increase in output voltage, equalizing the charge between cells and maximizing battery life and capacity. AutoBoost is triggered automatically when the battery falls below a preset voltage or can be initiated manually through a momentary switch input. At the end of the AutoBoost cycle, Sentinel automatically reverts to normal float charge mode, preventing battery over-charge and gassing.

UL Tested (listed or recognized) to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air-gap clearance of 40 mm/1.5 in. above/below and 25 mm/1.0 in. at each side.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.

UL Tested (listed or recognized) to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air-gap clearance of 40 mm/1.5 in. above/below and 25 mm/1.0 in. at each side.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.

UL Tested (listed or recognized) to: UL1236 - Battery chargers for charging engine-starting batteries, and CSA22.2 No. 107.2 - Battery chargers.

Dimensions for reference only. Use actual product for mounting template. For safe heat dissipation, mount product in orientation shown, with minimum air-gap clearance of 40 mm/1.5 in. above/below and 25 mm/1.0 in. at each side.

In order to consistently bring you the highest quality, full-featured products, we reserve the right to change our specifications and designs at any time. Murphy products and the Murphy logo are registered and/or common law trademarks of Enovation Controls, LLC. This document, including textual matter and illustrations, is copyright protected by Enovation Controls, LLC, with all rights reserved. (c) 2015 Enovation Controls, LLC. A copy of the warranty may be viewed or printed.