PTJ601 (economical type), PTJ601G (high precision type), PTJ601X (display and control integrated type) are used to control the pressure difference between the front room, common front room, fire elevator front room, closed refuge floor and staircase. Its purpose is to start the shaft immediately when fire hazard occurs, to control the front room, share the front room, fire elevator front room, closed refuge floor, smoke staircase. Interior, closed stairwell pressurization, so that the above areas to maintain wind pressure, smoke and harmful gases in other areas can not intrude, people have a safe environment. But also can not let the current area of wind pressure too much impact on escape. This is the ultimate goal.
PTJ601 Special Pressure Differential Sensor for Positive Pressure Air Supply for Fire Fighting (Expansion Economical Type)
The air pressure difference sensor is used to control the front room, share the front room, fire elevator front room, and close the shelter floor. The pressure difference controller often opens contacts and closes, connects the power supply of the control box of the relief valve by the roof, opens the relief valve by the roof for air supply and pressure relief, and opens the relief valve by the roof for air supply and pressure relief to reduce the pressure difference. When the pressure difference decreases to a certain value, the contact of the wind pressure difference sensor is disconnected, the roof bypass valve is cut off, and the bypass valve is closed to stop pressure relief. Exclusive instruments.
The product features are as follows:
1: The high-speed elastomer is pulled by balloon expansion.
2: The high-speed action switch touch after reaching the set pressure.
3: The way of gas source makes the PTJ601 sensor strong anti-overload ability.
4: There are fine patrol light and alarm light on the surface. When working, the green light of patrol light is on, and when the wind pressure is over the limit, the red light is on and the passive switch is on.
Mainly used in fire control positive pressure air supply pressure difference control relief valve, residual pressure valve action. There is a small pressure difference control for the purpose of industrial systems. This product is also known as positive pressure air supply sensor, pressure difference monitor, air pressure difference sensor, etc.
Pressure form: gauge pressure, differential pressure
Measurement range: 0-100 pa
Voltage withstand: 10000PA
Accuracy Level: Level 3
Action pressure: anterior chamber measurement and control: 25-30 PA (reduction pressure: 15-20 PA);
Staircase application: 40-50PA, (reposition pressure: 30-40PA)
Output mode: switching signal (24VDC/4A)
Working voltage: 24VDC
Medium Temperature: -20-85 C
Sealing grade: IP65
Overload capacity: 150% FS
Size: 172*112*60
Weight: 350g
