The PTH703L wear-resistant type, PTH703F waterproof type, PTH703 ordinary type, and PTH703 flat film series pressure sensors use imported materials, diaphragm isolation technology, and test heads without pressure holes. There is no blockage of viscous media during the measurement process. The integrated structure design is suitable for pressure measurement and control of viscous media such as chemical coatings, paints, mud, asphalt, and crude oil.
This type of sensor is commonly referred to as: flat membrane pressure sensor, diaphragm type pressure transmitter, chemical pressure sensor, chemical pressure transmitter, paint pressure sensor, paint pressure transmitter, food pressure sensor, food pressure transmitter, diaphragm pressure sensor, diaphragm pressure transmitter, sanitary pressure sensor, sanitary pressure transmitter.

Main technical parameters
Range	-0.1～60(MPa)(The range can be customized according to the actual needs of the user)	Ultimate Overload	200%FS
Comprehensive accuracy	0.1%FSThe0.25%FSThe0.5%FSThe1.0%FS	response time	5 mS(rise to90%FS)
output signal	analog quantity 4～20mA(two-wire system)、0～5V、0～10V(three-wire system)digital outputRS485(modbusProtocol, four wire system)	load resistor	Maximum current output type800ΩVoltage output type greater than50KΩDigital output based on the actual mounting capacity of the chip
power supply voltage	24DCV(9～36DCV)	insulation resistance	greater than2000MΩ (100VDC)
medium temperature	-20～85～150℃, when unmarked, it is at room temperature of 85 ℃ within	Sealing grade	IP65
ambient temperature	room temperature(-20～85℃)	Long term stability performance	0.1%FS/year
Zero temperature drift	≤±0.05%FS℃	Vibration impact	At the frequency of mechanical vibration20Hz～1000HzInternally, the output change is less than0.1%FS
temperature drift	≤±0.05%FS℃	electrical interface	Tightening nut, four flexible and thick core shielded wire, Hirschman plug, etc
compensation temperature	060℃	Mechanical connection (threaded interface)	G1/2TheM20×1.5TheM22×1.5Wait, other threads can be designed according to customer requirements
Safe overload	150%FS	Overall dimensions	Based on actual dimensions

Example of selection guide (complete model: PTH503-30M-mA-0.5-M20-3M-P)
Model code	Measurement range	unit of measurement	output signal	Comprehensive accuracy	mechanical connection	Wiring length	with temperature
PTH503	30	M	mA	0.5	M20	3M	P
	Indicate with actual numbers	M=(MPa)	mA=(4-20mA)	0.5=(0.5%FS)	M20=(M20X1.5)	3M=(3 meters)	Equipped with temperature function, it is designed for RS485 digital signal output products and defaults when not configured
		K=(KPa)	10V=(0～10V)	Indicate with actual numbers	M22=(M22X1.5)	Indicate with actual length
		P=(Pa)	5V=(0～5V)		M14=(M14X1.5)
		B=(Bar)	4V=(1～5V)		G1/2=(G1/2)
		mH=(mH20)	R=（RS485）		G1/4=(G1/4)
		mmH=(mmH20)	N=（NB-IOT）		NPT1/4
			G=（GPRS）		ZG1/4
			mV=（mV）		Mark with actual dimensions