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Sensor Green, Yellow, and Red LED indicators

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A Primex sensor has three LED indicators (green, yellow, and red) that provide a visual indicator of its current state.

When power is first applied, the LCD segments display and LED indicators briefly illuminate.

LED

State/Status

Device power

Green LED illuminated

Normal state

Operating as expected

AC or PoE power: LED illuminated

Battery-power only: LED disabled to conserve battery life. Upon power up, illuminates for 2 seconds

Yellow LED flashing

Warning/Alarm state due to either of the below conditions:

  • Low battery

    Batteries need to be replaced and the low battery icon is also displayed

  • Unresponsive

    Its last connection to the network failed and the No Signal indicator is also displayed

  • Alarm state (Temperature or Water Detector Sensor only)

    The sensor has detected no input from a Temperature Probe or Water Detector

AC or PoE power: LED is illuminated and flashing

Refer to the LCD display to identify the condition

Red LED flashing

Reading Alarm (Out of Range, Past Alarm Delay status)

  • Out of Range: last reading is below or above its Normal Condition,

  • The amount of time it has been out of range has exceeded its Alarm Delay

All power methods: LED is illuminated and flashing