PT 22SD | Electronet

Product Description

PT 22SD Pressure Transmitter & Switch is designed for fast, accurate, and trouble-free pressure measurement of clear liquids and gases in industrial applications. It uses a piezo-resistive sensor to provide a stable 4–20 mA DC or 0–5 V DC output proportional to the applied pressure. The transmitter supports a wide measuring range from 0.1 bar up to 1000 bar with an accuracy of ±0.25% of full scale. An integrated PNP alarm output (100 mA max.) enables effective pressure switching and protection. All wetted parts are SS-316 and hermetically welded, ensuring durability and long service life. With IP-65 weatherproof enclosure, fast response time, and direct line mounting, the PT 22SD is suitable for harsh industrial environments.

Product Parameters

Configure the transmitter and electronics based on application, environment, and compliance requirements.

Sensor Type	Piezo Resistive
Measuring Range	AP URL: 100 kPa to 600 kPa	GP URL: 70 kPa to 100000 kPa
Power Supply	12 to 36V DC
Display	LED Display
Output 1	4 to 20 mA DC / 0 to 5 V
Output Load	Max 600 Ω (For 4 to 20mA) / 10K (For 0 to 5V OP)
Output 2	PNP Alarm output (Max. load 100mA)
Accuracy	± 0.25% F. S.
Non Linearity	0.2% of Span
Non Repeatability	< 0.1% of Span
Response Time	<10 mSec for 10 to 90% output change
Over-Pressure Safety	2 times max. Pressure range
Burst Pressure	3 times max. Pressure range
Process Temperature	-20 to 120 °C max
Ambient Conditions	Temperature: -20 to 70°C / Humidity: 5 to 95% non condensing
Insulation Resistance	>100 MΩ at 100VDC
Span / Zero Adjustments	Programmable Software Calibration
Process Connection	Refer ordering information
Electrical Connection	4 Pin M12 Female
Mounting	Direct Line mount (Vertical)
Material of Construction	All wetted parts SS 316 (Options available on request)
Enclosure	SS316 with IP 65 Ingress Protection / ABS Plastic
Area Classification	Field Mount Weather Proof IP65
Weight	0.6 kg (Approximate)

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Applications

Electronet instruments are widely deployed across multiple industries and utilities for reliable monitoring and control of critical process parameters.

Industry	Key Applications (PT 22SD)
Water & Wastewater Treatment	Main pump discharge header pressure telemetry with low-pressure dry run cutoff trips, surge tank monitoring, and backwash header pressure control.
Automation & Manufacturing	Continuous line pressure feedback with hardwired alarm relays on hydraulic power packs, pneumatic manifolds, and CNC clamping/cooling circuits.
Chemical & Pharmaceutical	Reactor vessel inerting blanket pressure monitoring, dosing pump discharge pressure trips, filtration skids, and clean utility line supervision.
Oil & Gas / Petrochemical	Hydrocarbon transfer pump discharge headers, lube oil manifold interlocks, fuel gas skids, and compressor discharge safety overpressure trips.
Nuclear & Thermal Power Generation	Boiler feed pump discharge pressure monitoring with direct emergency low/high trip relays, turbine lubrication oil networks, and auxiliary steam headers.
Food, Beverage & Dairy	Pasteurizer hold-tube pressure monitoring, homogenizer utility lines, CIP/SIP supply manifolds, and pressurized storage tank blanket controls.
Steel & Cement Industry	Heavy rolling mill hydraulic roll balance systems, blast furnace gas manifolds, central grease lubrication stations, and baghouse compressed air pulse lines.
Fertilizer Industry	Ammonia feed pump discharge monitoring, granulation steam supply lines, scrubbing acid dosing pumps, and process air header supervision.
Textile Industry	Steam distribution monitoring with overpressure trip interlocks on yarn conditioning autoclaves, dye kiers, and fabric drying cylinders.
Pulp & Paper Industry