0820250 pressure controller switch of Shanghai Far East Instrument Factory
A diaphragm-type sensor is used. Available air, gas and other neutral gases and water, hydraulic oil, light fuel oil, lubricating oil and other liquid media that have no corrosive effect on the pressure sensor material. The set value of the controller is adjustable, and the adjustment range is 0.02-3 Mpa.
Shanghai Far East Instrument Factory D500/8D pressure controller 0820760
Can be used for neutral or corrosive gas and liquid media. The set value range is adjustable, and the adjustment range is 0.02~42Mpa. The switching difference is not adjustable. The pressure controller includes a wide range of varieties, including differential pressure controllers, explosion-proof pressure switches, explosion-proof differential pressure switches, pressure transmitters, Differential pressure transmitter, air pressure switch, air pressure transmitter,
1. Select the controller so that the predetermined set value is located in the middle part of the adjustment range of the controller set value. Generally, it is 20[%]~80[%] of the adjustment range.
2. When the controller is to be installed outdoors, sufficient protection should be given to avoid drastic changes in ambient temperature, direct sunlight, infiltration of corrosive gases or water.
3. When installing the cable, select the appropriate outer diameter of the cable, and tighten the compressed nut at the cable entry to prevent the cable from loosening and prevent the infiltration of water or dust.
4. For the controlled liquid medium with pressure peak and pulse pressure, a pressure shock damper can be installed on the interface of the controller to eliminate adverse effects.
5. The on-off current cannot be greater than the rated value.
6. Pay special attention when installing (or disassembling) the controller:
1) During installation (or disassembly), the flat part of the sensor must be clamped with a wrench to prevent the sensor and the switch housing from rotating relative to each other.
2) When the sensor interface is an internal thread, the depth of the pipe joint screwed into the sensor shall not exceed 12mm.
It can be suitable for various industrial sites and can ideally replace similar foreign products.
And the performance is stable and reliable. Accuracy: ±0.5 % Repeatability: ± 0.5. %
Simple structure with no removable parts
SPDT or DPDT output; cast aluminum housing (special housing can be customized), optional explosion-proof;
A variety of pressure and electrical interface optional range: 0 ~ 40Mpa optional.
Main technical performance
Working viscosity: <1×10－3m2/s
Switch element: micro switch
Shell protection grade: IP54 (complies with DIN40050, equivalent to IP54 in GB4208)
Ambient temperature: -5～40℃
Medium temperature: 0～90℃
Vibration resistance: Max: 100m/s2
Repeatability error: ≤1.5%
Contact capacity: AC 220V 6A (resistive