DPT 22 | Electronet

Product Description

DPT-22 Differential Pressure Transmitter is a compact and reliable instrument designed for accurate differential pressure measurement of clear gases and liquids in industrial applications. It operates using a piezo-resistive sensor and provides a stable 4–20 mA DC or 0–10 V output proportional to input pressure. The transmitter supports measuring ranges from 35 kPa to 2500 kPa with an accuracy of ±0.25% of full scale. All wetted parts are SS-316 and hermetically welded, ensuring durability and long service life. With fast response time (<10 ms), span and zero adjustment, and IP-65 weatherproof enclosure, the DPT-22 ensures trouble-free operation. Its direct line mounting design makes it suitable for a wide range of industrial process control applications.

Product Parameters

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

Sensor Type	Piezo Resistive
Measuring Range	DP URL: 35 kPa to 2500 kPa
Power Supply	24V DC Two Wire Loop Powered / 12 to 36V DC
Output	4 to 20 mA DC, 0 to 10 V
Output Load	Max 600 Ω
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	Provided
Process Connection	Refer ordering information
Electrical Connection	M12 Connector, DIN 43650 Connector
Mounting	Direct Line mount (Vertical)
Material of Construction	All wetted parts SS 316 (Options available on request)
Enclosure	SS316 with IP 65 Ingress Protection
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 (DPT 22)
Water & Wastewater Treatment	Continuous differential pressure transmission across rapid gravity sand filters, dual-media beds, pressurized carbon filters, and intake trash racks for SCADA-driven backwash automation.
Automation & Manufacturing	Analog 4–20 mA DP monitoring across high-pressure hydraulic return lines, central lube oil filtration skids, and industrial compressed air coalescing filter stages.
Oil & Gas / Petrochemical	Differential pressure telemetry across pipeline basket strainers, natural gas filter separators, hydrocarbon coalescing vessels, and booster pump suction/discharge headers.
Nuclear Power & Power Generation	Precision DP measurement across main condenser cooling water strainers, condensate polishing units (CPU), demineralizer resin beds, and turbine lube oil filtration systems.
Textile Industry	Monitoring steam line strainer pressure drops, process water recirculation filters, and heat recovery economizer differential pressures to maintain steady thermal efficiency.
Pulp & Paper Industry	Continuous DP measurement across pulp screening baskets, paper machine wire suction boxes, vacuum flat boxes, and fresh water supply line filters.
OEM Equipment Manufacturers	Compact DP transmitter integration for reverse osmosis (RO) membrane arrays, packaged industrial air compressors, booster pump skids, and modular heat exchangers.
Sugar & Distillery Industry	Continuous pressure differential tracking across mixed juice screens, boiler feed pump suction strainers, and cooling water circulation line filtration units.