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Your cart is empty. 3.2"-NPT Connector Digital Pressure Switch controller Specification:
Pressure Range： 0 ~230PSI
Over Pressure： 150%
Accuracy： . ±0.5%FS
Alarm Point： Alarm point be set discretionarily within the range.
Alarm Type：Relay signal
Long-term Stability： Typical: ±0.5%FS/year
Operating Temperature ：-20~ 80℃
Compensation Temperature ：-10 ~60 ℃
Electric Protection：Short-circuit protection, reverse protection, anti-electromagnetic interference
Sampling Frequency：5 times/sec
Measurement Medium： Gas, water, oil
Pressure Connection：NPT1/4
Connector Material：304SS
Shell：304SS
Supply：110VAC
Weight：0.3Kg
Dimension： Ø3.2”/Ø80mm
APPLICATION:
1: Pump Control
2: Air Compressor
3: Automatic Machinery
John T
Reviewed in the United States on January 13, 2025
Needed a high pressure switch that would not kick off at low pressure. This one fit the bill. Instructions could be a little more clear, but after much thought figured the wiring out.
Arturo
Reviewed in the United States on July 9, 2024
After 3 years it fails, never cutted the power when reach the high setting pressure, until explode the pipelines,
Ed
Reviewed in the United States on May 11, 2024
Easy to wire up and set pressures and change them.I'm looking for this same unit but in 240 volt for a different project. Anyone know part number for this ?
R.bianchi
Reviewed in the United States on November 3, 2024
No Instructions and nowhere to find in the web !!
Sonia
Reviewed in the United States on May 29, 2023
GB
Reviewed in Canada on April 11, 2023
Ok, so Chinese (sigh)… this unit is the typical stuff from China that’s incoherent when you use it.l and makes your day very frustrating…On the pro sides, it’s sturdy and precise (I compared its measurements to an American brand gauge and it’s spot on). On the down side, this is a very simple switch control, but the instructions are obviously Google translated and are hard to understand. Plus, they don’t provide the wiring diagram so you must look at the one pictured in the item description or have fun figuring it out. There’s an error too as the white wire is actually yellow in reality. And there’s a green wire that’s not listed anywhere, I assume it’s unused, but can’t be certain. Also, brought mine to overload at 230 psi and it started to be completely haywire after that until I managed to reset it by luck. It has NOT regained all functionalities after and now it won’t trip off at the max value, very dangerous! So beware of it’s sensitive nature. Last but not least, I bought this for food grade purposes because it has a stainless sensor but actually there’s a brass insert inside the stainless threads that measures pressure. So beware of that if your liquid can interact with brass.
jason
Reviewed in the United States on October 31, 2022
love having a digital readout and controller for my air compressor but the manual sucks. It's really hard to understand how to set this up and contains lots of broken English as it was likely written in a different language and translated. After struggling through it and getting it set i love it
John
Reviewed in the United States on May 28, 2019
Haven't programmed it yet, seems simple though. Two wires for power, hot/neutral, and two wires that when set pressure falls below x amount are connected together. If your using it with a rPi like I am just have your relay positive feed go through those two wires.
Jay
Reviewed in the United States on November 14, 2019
Using this as the pressure controller for a shallow well water pump. The mechanical pressure switch on my pump was adjustable, but about the best you could get was 32 - 50 psi pressure range. This unit is electronic and very accurate. I set it for a 44 - 49 psi pressure range. Along with a storage tank I now have even water pressure and the pump does not cycle too frequently. Well made and very easy to adjust cut in and cut out pressures.
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