Sentinel 300 User Manual

The Sentinel 300 has 3 operating modes:
1.Manual operated:
Cigarette Lighter Adaptor Powered
• Power the Sentinel 300 using the supplied Cigarette lighter adaptor. The
cigarette lighter adaptor has been modified and incorporates an additional
purple wire, plugged in to Deutsh pin 3. This provides power to override the
timer circuit.
• The unit is turned ON/OFF via the power button on the front panel.
Insert supplied cord in to 12V DC Cigarette Lighter Plug. (Has inbuilt 10A fuse,
unscrew end cap to replace)
ON/OFF Button
Green LED: Light Steady - Normal operation Mode
Red LED Light: Blink Once - Initializing Unit
Steady – Unit Fault – Return to manufacturer.
10 Amp Fuse
Connect to Sentinel 300 Unit
INSTRUCTIONS MANUAL

Sentinel 300 Specifications

General

Brand	Sentinel
Model	300
Category	Air Cleaner
Language	English

Summary

Sentinel 300 LED Indicators and Operating Modes

LED Indicators

Details the meaning of steady and blinking green and red LED lights on the Sentinel 300 unit.

Manual Operation: Cigarette Lighter Powered

Explains powering the Sentinel 300 using a cigarette lighter adapter with an override timer circuit.

Sentinel 300 Power Connection Methods

Manual Operation: Hard Wired Constant Power

Describes connecting the Sentinel 300 directly to 12V battery supply for constant powered manual operation.

Timer Operation Mode

Details how to set up the Sentinel 300 to automatically start and run for 60 minutes after ignition source is disconnected.

Routine Maintenance and Troubleshooting

Routine Maintenance

Guidance on cleaning fan covers and noting no internal maintenance is required for the unit.

Troubleshooting Common Issues

Addresses unit not operating, noise on startup, and persistent red light faults.

Installation Guide

Instructions for mounting the unit ensuring unobstructed air flow and secure fixture.