The corrosion-resistant pressure sensor uses ceramic pressure resistance chips, high-density polymer materials that are resistant to strong acids and alkalis, and corrosion-resistant cables. After soaking in 37% HCl hydrochloric acid for two years, there were no abnormal phenomena. It is mainly used for pressure measurement and control in industries with strong corrosiveness such as chlorine gas for water disinfection, chemical industry, battery equipment, as well as food hygiene, medical and other industries.
These types of sensors are commonly referred to as: corrosion-resistant pressure sensors, corrosion-resistant pressure transmitters, anti-corrosion pressure sensors, anti-corrosion pressure sensors, sulfuric acid pressure sensors, hydrochloric acid pressure sensors, sulfuric acid pressure transmitters, hydrochloric acid pressure transmitters.

Main technical parameters
Range	-0.1～5(MPa)(The range can be customized according to the actual needs of the user)	Ultimate Overload	200%FS
Comprehensive accuracy	0.5%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℃, 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	M20×Φ26×110mm, 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