Differential Pressure Transmitter

Differential Pressure transmitters measure the difference between two pressures. They feature 4-20mA+Hart technology to deliver accurate outputs for Data collection and control devices. With Protection Level IP67 that suitable for measuring liquid, gas, or steam characterized by the remote seal construction.

Range: 0~1KPa~40MPa

Resolution: ±0.1%; ±0.2%; ±0.075%

Ingress protection: IP65/IP67

Output: 4-20mA, HART, ModBus RS485

Power supply: 10~32VDC

Product Details

Related Products

The differential pressure transmitter is a sensor device used to measure the pressure difference between two points in a fluid. It can convert the pressure difference into an electrical signal output, and is usually used to measure the flow rate, flow, liquid level, density, etc. of the fluid. The difference between the differential pressure transmitter and the general pressure transmitter is that they both have two pressure interfaces, but the differential pressure transmitter is generally divided into a positive pressure end and a negative pressure end. Under normal circumstances, the pressure at the positive pressure end of the differential pressure transmitter should be greater than the pressure in the negative pressure section to measure. It is usually used to measure the pressure difference in fluids or gases.

Technical Parameters

Model Number	AEA 18
Accuracy	±0.1%; ±0.2%; ±0.075%
Output	4~20ma, 4~20mA+HART, ModBus RS485
Power supply	12~32VDC
Ambient Temperature Effects	≤±0.1%F.S/10°C
Long Term Stability	≤±0.2%/URL (12 months)
Static Pressure Effect	≤±0.1%/range/1MPa
Response Time	0.25s
Power Supply Impact	≤±0.005%/URL/V
Vibration Effects	≤±0.25%/URL/g
Operating Temperature	-40~85°C
Storage Temperature	-40~85°C
Storage Humidity	≤95%RH
Protection class	IP65/IP67
Explosion-proof	NEPSI Ex db IIC T6 Gb
Process connection	M20*1.5; G1/2; NPT1/2; NPT1/4; NPT1/2
Housing material	Cast Aluminum Alloy; SUS304
Diaphragm material	SUS316L; Hastelloy C
Sensor seal material	Nitrile Rubber; Fluorosilicone; Teflon PTFE

Measurement range

Measurement Range	Measurement Type	Minimum Range	Upper Range Limit	Lower Range Limit	Overpressure Limit Value
0-6KPa	Differential Pressure	1KPa	6KPa	-6KPa	16MPa
	High Static Pressure	1KPa	6KPa	-6KPa	25MPa
	Gauge Pressure	1KPa	6KPa	-6KPa	16MPa
0-40KPa	Differential Pressure	4KPa	40KPa	-40KPa	16MPa
	High Static Pressure	4KPa	40KPa	-40KPa	25MPa
	Gauge Pressure	4KPa	40KPa	-40KPa	16MPa
0-250KPa	Differential Pressure	25KPa	250KPa	-100KPa	16MPa
	High Static Pressure	40KPa	250KPa	-100KPa	25MPa
	Gauge Pressure	25KPa	250KPa	-100KPa	16MPa
0-3MPa	Differential Pressure	0.15MPa	3MPa	-0.1MPa	20MPa
	High Static Pressure	0.15MPa	3MPa	-0.1MPa	50MPa
	Gauge Pressure	0.15MPa	3MPa	-0.1MPa	20MPa