SPT-2B. Products. Arton

The fire heat (fixed temperature) detector with the indication of the standby mode and with the remote resetting (to the point of departure) SPT-2B is designed for the forming and transmission of the “Fire” signal by the 2-wire alarm loop to a control panel. The detector switches over to the “Fire” mode when reaches the threshold value of ambient temperature.

The indication of the standby mode and the “Fire” status is provided.

Performances of the detector are produced for the connection to the 4-wire alarm loop; their output signal is formed by switching relay contacts.

The Base B100M (М-1) is produced for the control of power voltage of the 4-wire alarm loop and the installation of a terminal resistor that is mounted at the end of the alarm loop.

Technical specifications of the fire detector SPT-2B

Sensing range, °С

+54 — +70

Consumption current in the standby mode, mA

≤ 0,1

Nominal power voltage for the 2-wire alarm loop, V

Nominal power voltage for the 4-wire alarm loop, V

Power voltage range for the 2-wire alarm loop, V

10—30

Power voltage range for the 4-wire alarm loop, V

10—14

Consumption current in the “Fire” mode for the 2-wire alarm loop fixed by an external resistor in the range of values, mA

5—20

Consumption current in the “Fire” mode for the 4-wire alarm loop, mA

≤ 22

Internal resistance of a detector for the 2-wire alarm loop in the “Fire” mode with the current 20 mA

≤ 500

Maximum current commutated by relay contacts for the 4-wire alarm loop, mA

≤ 100

Maximum voltage commutated by relay contacts of the detector for the 4-wire alarm loop, V

≤ 36

Resistance of N.O. relay contacts of the detector for the 4-wire alarm loop

≥ 5

Remote reset of the detector to the standby mode (discharge), s

≥ 3

Dimensions, mm

Ø100×48

Mass, kg

0,15

Average lifetime, years

≥ 10

SPT-2B

Fire heat detectors

Technical specifications of the fire detector SPT-2B