Digital Pressure Transducer 5 PSI/30 PSI/100 PSI/3000 PSI/8000 PSI

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$197.78

Digital pressure transducer with classic 2088 type head has high accuracy of 0.5%FS, medium temperature of -40~+60℃ (-40~+140℉) and optional measuring range -0.1~60MPa/ -1~600bar/ -14~8702psi. Pressure transducer is used for gauge pressure/absolute pressure/sealed pressure measurement of air, water, oil, etc. The output signal can be 4-20mA or RS485.

Measuring Range *
Power Supply *
Output Signal *
Accuracy *
Thread of Pressure Connection *
Pressure Type *

SKU: ATO-PRES-PX400

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Delivery date: 6-12 days

Digital pressure transducer for air/water/oil pressure measurement has optional output signal 4-20mA or RS485.

Application: Pressure transducer is widely used in process control, chemical, petroleum and metallurgical industry and other fields.

Specification:

Model	ATO-PRES-PX400
Weight	1.6kg
Measuring range *	-0.1~60MPa (-1~600bar/-14~8702psi)
Pressure type	Gauge pressure (standard) Contact us for absolute pressure, sealed pressure type (note that the measuring range for these two types must ≤1MPa)
Measure medium	Air, water, oil
Power supply *	DC 12V, DC 24V, DC 12-36V
Output signal *	4-20mA, RS485
Accuracy *	±0.5%FS, ±0.3%FS
Zero temperature drift	±0.03%FS/℃
Sensitivity temperature drift	±0.03%FS/℃
Long term stability	≤0.2%FS/year
Overload pressure	200%FS
Frequency response (-3dB)	5kHz~650kHz
Thread of pressure connection *	G1/4, G1/2, 1/4NPT, 1/2NPT, M141.5, M201.5
Response time	＜10ms
Operating temperature	-40~+80℃ (-40~+176℉)
Medium temperature	-40~+60℃ (-40~+140℉)
Material	Housing: 304 stainless steel Fill fluid: silicon oil Pressure port: 304 stainless steel, or 316L stainless steel (customizable) Separating diaphragm: 304 stainless steel, or 316L stainless steel (customizable)
Protection class	IP67

Note: * denotes optional parameters, you can select every parameter in drop-down lists to finish your order.

Digital pressure transducer dimension drawing (unit: mm):

Pressure transducer wiring diagram:

RS485 output wiring diagram

Note: For the output signal RS485, it is only a 485 communication protocol, if you need the data to be received from the PC through the RS485 port, then the PC used should be a PC for industrial application, which can support 485 communication function (such as touch screen HMI upper computer, etc.), A USB to 485 communication interface is also needed to connect the sensor to the PC.

Tips: Why the pressure transducer has no output?

When the pressure transducer is used with a display instrument, if there's no display on the instrument, it should be judged first whether the pressure sensor has no output or the display instrument is faulty. Measure the output of analog pressure transducer with a multimeter to see if it has a current output of 4-20mA. If the pressure transducer is used with a signal isolator and DCS, it can be judged by measuring the current with a multimeter.
If the pressure transducer doesn't have output, check firstly whether the 24V power supply is normal. If the 24V power supply and power supply are normal, but the pressure transducer still has no output, check whether the power cord is connected reversely, whether the positive and negative poles of the signal are connected incorrectly. If they are, check whether there are open circuit faults in the whole circuit.
If all above inspections are normal, the hardware of the pressure transducer may break. If the circuit board of pressure transducer is damaged, it directly leads to no current output. Overload or over-voltage of the pressure transducer will also lead to damage of its measuring component, which may also lead to no current output; Damage of the transducer's gauge outfit would also lead to no current output. Short-circuit the gauge outfit directly with two wires and it will be normal after short-circuit, indicating that the gauge outfit is damaged. If the LCD head has no display, check the LCD board first, and then check the circuit board. If there's still no output, check the EMI board and circuit board.

Measuring range conversion table:

Unit	kPa	MPa	bar	psi
Measuring range	0~5	0~0.005	0~0.05	0~0.7
	0~10	0~0.01	0~0.1	0~1.5
	0~20	0~0.02	0~0.2	0~3
	0~50	0~0.05	0~0.5	0~7
	0~100	0~0.1	0~1	0~14
	-100~0	-0.1~0	-1~0	-14~0
	-100~100	-0.1~0.1	-1~1	-14~14
	0~600	0~0.6	0~6	0~87
	0~1000	0~1	0~10	0~145
	0~1600	0~1.6	0~16	0~232
	0~2500	0~2.5	0~25	0~362
	0~6000	0~6	0~60	0~870
	0~10000	0~10	0~100	0~1450
	0~20000	0~20	0~200	0~2900
	0~30000	0~30	0~300	0~4351
	0~40000	0~40	0~400	0~5801
	0~50000	0~50	0~500	0~7252
	0~60000	0~60	0~600	0~8702
	0~100000	0~100	0~1000	0~14503

Existing reviews of Digital Pressure Transducer 5 PSI/30 PSI/100 PSI/3000 PSI/8000 PSI

Problem about pressure transducer

The VFD runs the pump just fine from zero to 60hz. The problem is the pump never stops or slows down and the pressure gauge switches between 3.01 PSI and 4.206mA. Pressure gauges in the home are reaching critical at 130 plus psi so I know the pressure gauge is not reading pressure.
I took current readings at 60hz with both a digital and analog meter. DC mA shows zero but when I switch to AC mA, I get the attached readings. Current remains the same from 0-60hz until pump is powered down then goes to zero.
Well the troubleshooting is over. The pressure gauge you sent me is defective. I replaced with one I purchased off of Amazon and it’s working perfectly. See attached photos.
Running about 44hz with each zone of the irrigation system.
Do you want me to return for a refund or do you want to exchange it?
The only thing I don’t have figured out is hibernation and sleep modes when pump has reached desired pressure but there is no flow.. I can start the VFD and it runs up to 30HZ and it stays there until I open a valve to allow some water flow. Then it runs up to about 44hz and stays there even after reaching full pressure at .52. It remains at 44HZ even after the valve is closed with no flow. The VFD does not hibernate or go to sleep.
I’m using these settings. Any suggested changes?
P705.52
P708.010
P709.800
P719.40
P720.52
P721.002
P722.30
P723.002
P726.1
P727.800

From: adler | Date: 06/04/2023