What Open & Closed States Mean In AVTECH Switch Sensors

The list below shows the conditions that correspond to OPEN and CLOSED for each of AVTECH’s switch sensors.

Air Flow 1 Sensor (NC) RMA-AF1-SEN

CLOSED (Normal) Air is NOT flowing through the sensor. The flap is closed.

OPEN (Alarm) Air is flowing through the sensor. The flap is open.

Air Flow 2 Sensor (NO) RMA-AF2-SEN

CLOSED (Alarm) Air is flowing through the sensor. The flap is open.

OPEN (Normal) Air is NOT flowing through the sensor. The flap is closed.

Flood Sensor Spot RMA-FS2-SEN

CLOSED (Normal) Water is NOT detected.

OPEN (Alarm) Water is detected.

Flood Sensor w/ Cable (8′, 24′) RMA-F008-SEN, RMA-F024-SEN

Flood Detection Switch

CLOSED (Normal) Water is NOT detected.

OPEN (Alarm) WATER is detected.

Cable Fault Detection Switch

CLOSED (Normal) No cable fault

OPEN (Alarm) Cable fault

Fuel Tank Level Sensor (NC) RMA-FTL1-SEN

CLOSED (Normal) The water level has fallen. The float switch face is down.

OPEN (Alarm) The water level has risen. The float switch face is up.

Fuel Tank Level Sensor (NO) RMA-FTL2-SEN

CLOSED (Alarm) The water level has risen. The float switch face is up.

OPEN (Normal) The water level has fallen. The float switch face is down.

Mini UPS & Power Sensor RMA-MUPS-SEN

CLOSED (Normal) Main power is on.

OPEN (Alarm) Main power is off.

Motion Sensor RMA-MOT2-SEN

CLOSED (Normal) Motion is NOT detected.

OPEN (Alarm) Motion is detected.

Panic Button 1 RMA-PB1-SEN

CLOSED (Alarm) The button is down (pressed).

OPEN (Normal) The button is up (NOT pressed).

Panic Button 2 RMA-PB2-SEN

CLOSED (Alarm) The button is down (pressed).

OPEN (Normal) The button is up (NOT pressed).

Power Sensor RMA-PS1-SEN

CLOSED (Normal) The power source is on.

OPEN (Alarm) The power source is off.

Room Entry Sensor RMA-RE1-SEN

CLOSED (Normal) The door is closed. The magnet and proximity sensor are together.

OPEN (Alarm) The door is open. The magnet and proximity sensor are apart.

Smoke Sensor w/ Escape Light RMA-SS1-SEN

CLOSED (Alarm) The smoke alarm is on.

OPEN (Normal) The smoke alarm is off.

Sound, Light & Entry Sensor RMA-SLE-SEN

General (Switch 1)

CLOSED (Alarm) At least one of the other switches (2, 3 or 4) is closed. At least one condition (sound, light or entry) is detected.

OPEN (Normal) All other switches (2, 3 and 4) are open. NO sound, light or entry is detected.

Sound (Switch 2)

CLOSED (Alarm) Sound is detected.

OPEN (Normal) Sound is NOT detected.

Light (Switch 3)

CLOSED (Alarm) Light is detected.

OPEN (Normal) Light is NOT detected.

Entry (Switch 4)

CLOSED (Alarm) The door is open. The magnet and proximity sensor are apart.

OPEN (Normal) The door is closed. The magnet and proximity sensor are together.

Water Tank Level Sensor (NC) RMA-WTL1-SEN

CLOSED (Normal) The water level has fallen. The float switch face is down.

OPEN (Alarm) The water level has risen. The float switch face is up.

Water Tank Level Sensor (NO) RMA-WTL2-SEN

CLOSED (Alarm) The water level has risen. The float switch face is up.

OPEN (Normal) The water level has fallen. The float switch face is down