Pressure Transmitter

DPG-20 – Differential Pressure Gauge

(Battery / Solar Powered Digital Differential Pressure Gauge)

Features

• Piezo-resistive sensor

• Measuring range: 0.35 to 25 bar

• LCD indication

• Auto display shut-off for power saving

• Battery operated / Solar powered

• Reliable and cost-effective operation

• User-selectable unit conversion

• Zero/Tare function

  Description

Electronet Series DPG-20 is a digital Differential Pressure Gauge designed for fast, easy, and trouble-free pressure monitoring.
It is highly cost-effective and suitable for industrial applications requiring efficient pressure measurement.

A programmable display shut-off feature ensures that the LCD turns ON only when needed via the front push button, enabling extremely long battery life.

  Functional Specifications Sensor & Measurement

• Sensor Type: Piezo-Resistive

• Pressure Range: 35 kPa to 2500 kPa (0.35 to 25 bar)

• Accuracy: ±0.25% F.S.

  • (For remote seal process connections, accuracy ≤ ±1% F.S.)

• Response Time: < 200 mSec

• Burst Pressure: 3 × maximum pressure range

• Over-pressure Safety: 2 × maximum pressure range

• Temperature Compensation: Inbuilt

• Temperature Coefficient: ±0.01% F.S./°C

  Power & Display

• Power Supply: Battery operated / Solar powered

• Display: LCD

• Display Lock: ON via front “ON” key

• Display ON Duration: Programmable

• Battery Backup: 1 to 5 years (depending on sampling & messaging frequency)

  Outputs

• Output 1: RS485 (MODBUS RTU)

• Output 2: GSM / GPRS

  Operating Conditions

• Ambient Temperature: −20°C to 55°C

• Ambient Humidity: 5% to 95% RH (non-condensing)

• Process Temperature: −20°C to 120°C max

Process Connection

• Threaded:

  • 1/4" NPT

  • 1/2" NPT

  • 1/4" BSP

  • 1/2" BSP

• Flush Diaphragm:

  • Tri-Clover

  • ½" BSP Flush

• Connection Point: Bottom / Rear

• Mounting: Direct line mount

Construction

• Electronics Enclosure: SS / Die-cast Aluminium

• Diaphragm MOC: Hastelloy-C / SS-316L

• Sensor MOC: SS-316 / Hastelloy-C

• Area Classification: Field-mount Weatherproof IP-65

• Fill Fluid: Silicone Oil

• Weight: ~1 kg

• Certifications: CE Marked

DPT-22 – Digital Differential Pressure Transmitter Features

• Piezo Resistive Sensor

• Measuring Range: 0.35 to 25 bar

• Handy & Maintenance-Free

• Reliable & Cost-Effective

• Ingress Protection: IP65

Description

Electronet Series DPT-22 are Digital Differential Pressure Transmitters designed for fast, accurate, and trouble-free operation.
These transmitters are suitable for a wide range of industrial applications involving clear gases and liquids.
The electrical output is 4–20 mA DC or 0–10 V, proportional to the input pressure.
All wetted parts are made from stainless steel and are hermetically welded for long service life.

Technical Specifications Sensor & Measurement

• Sensor Type: Piezo Resistive

• Measuring Range: 35 kPa to 2500 kPa (DP URL)

• Accuracy: ±0.25% F.S.

• Non-linearity: 0.2% of span

• Non-repeatability: <0.1% of span

• Response Time: <10 ms (for 10% to 90% output change)

Pressure Safety

• Overpressure Safety: 2× maximum pressure range

• Burst Pressure: 3× maximum pressure range

Electrical

• Power Supply:

  • 24 V DC (Two-wire loop powered)

  • 12 to 36 V DC

• Output: 4–20 mA DC / 0–10 V

• Output Load: Max 600 Ω

• Insulation Resistance: >100 MΩ at 100 VDC

Environmental

• Process Temperature: –20°C to 120°C

• Ambient Temperature: –20°C to +60°C

• Humidity: 5% to 95% RH (non-condensing)

Adjustments & Connections

• Span/Zero Adjustments: Provided

• Process Connection: Refer ordering information

• Electrical Connection:

  • M12 Connector

  • DIN 43650 Connector

• Mounting: Direct line mount (vertical)

Construction

• Wetted Parts: SS316 (optional materials available)

• Enclosure: SS316, IP65 ingress protection

• Area Classification: Field-mount, weather-proof, IP65

• Certification: CE (Type 43)

• Weight: Approx. 0.6 kg

DPT-225D – Differential Pressure Transmitter Features

• Measuring Range: 0.35 to 25 bar

• Suitable Media: Liquids & Gases

• Accuracy: < ±0.1% of range

• Response Time: < 1 second

• Long-term stability

• Robust design for harsh industrial environments

• High voltage & reverse polarity protection

Description

Electronet Series DPT-225D are Differential Pressure Transmitters designed for fast, reliable, and maintenance-free operation. They are suitable for a wide range of industrial applications involving clear gases and liquids.
The transmitter provides electrical output in 4–20 mA DC or 0–5V DC, proportional to the input pressure. A PNP alarm output (100 mA max.) is also available.
All wetted parts are made of stainless steel and are hermetically welded for maximum durability.

Technical Specifications Sensor & Measurement

• Sensor Type: Piezo Resistive

• Measuring Range: 35 kPa to 2500 kPa (DP URL)

• Accuracy: ±0.25% F.S.

• Non-linearity: 0.2% of span

• Non-repeatability: <0.1% of span

• Response Time: <10 ms (10% to 90% output change)

• Overpressure Safety: 2× maximum pressure range

• Burst Pressure: 3× maximum pressure range

Electrical

• Power Supply: 12 to 36 V DC

• Display: LED display

• Output 1: 4–20 mA DC / 0–5 V

• Output Load:

  • Max 600 Ω (for 4–20 mA)

  • Max 10 kΩ (for 0–5 V)

• Output 2: PNP alarm output (max. 100 mA)

• Insulation Resistance: >100 MΩ at 100 VDC

• Power Consumption: <15 VA

Process & Environmental

• Process Temperature: –20°C to 120°C max

• Ambient Conditions: Temperature –20°C to +70°C (typical)

• Span/Zero Adjustments: Programmable via software

• Process Connection: As per ordering information

• Mounting: Direct line mount (vertical)

Construction

• Wetted Parts: SS316 (other options available)

• Housing Material: SS316 with IP65 protection / ABS plastic

• Enclosure: Field-mount, weather-proof, IP65

• Area Classification: Safe area

• Electrical Connection: 4-pin M12 female connector

• Weight: approx. 0.6 kg

ELPRT-100 ERH – Nuclear Grade Analog Pressure Transmitter Salient Features

• Analog Type Transmitter

• Qualified for 4.1 MRad TID Gamma Radiation

• Two-wire system (4–20 mA DC)

• Capacitance Type Sensor

• Rangeability: 6:1

• 20 Years Service Life

• Conforms to IEEE-323 Environmental Conditions

• Conforms to IEEE-344 Seismic Conditions

• LOCA (Loss of Coolant Accident) Qualified

• Adjustable Damping

  Description

Electronet’s ELPRT-100 ERH is an indigenously developed Nuclear Grade Analog Pressure Transmitter, designed for reliable operation during normal and severe abnormal conditions in Nuclear Power Plants.

This transmitter is fully qualified as per IEEE-323 and IEEE-344 standards and is engineered to operate under harsh environmental, seismic, and LOCA conditions.
It uses a robust Capacitance Type Pressure Sensor, suitable for Pressure, Differential Pressure, and Absolute Pressure measurement applications.

  Additional Key Features

• Analog Design for long-term stability

• 20-year operational life

• 4.1 MRad TID Gamma Radiation qualification

• LOCA qualified (unsaturated test profile)

• Seismic qualification (1–100 Hz, all 3 axes) as per IEEE-344

• High accuracy & excellent long-term stability

• Zero suppression up to 500% and zero elevation up to 600%

• Continuous & adjustable span and zero

• Adjustable damping

  Functional Specifications General

• Transmitter Type: Analog, 2-Wire

• Output: 4–20 mA DC (Standard) / 20–4 mA DC

• Range: As per ordering range table

• Sensor Type: Capacitance Type

• Power Supply: 28 VDC ± 4 VDC

• Rangeability: 6:1

• Damping: 0 to 5 sec adjustable

Adjustments

• Zero Suppression: Up to 500% of calibrated span

• Zero Elevation: Up to 600% of calibrated span

• Span & Zero Adjustment: External via potentiometer

  Mechanical / Process

• Static Pressure: 4, 10, 25, 32 MPa (as per range)

• Body Rating: Max. 40 MPa

• Fill Fluid: Silicone Oil

• Process Connection: ½” NPT (F) / Others via adapter

• O-Ring / Gasket: Buna-N, EPDM, Teflon, Silicon Rubber

• Vent & Drain: Provided

• Mounting: Horizontal / Vertical, Wall or Stand mounting

• Weight: Approx. 11.5 kg

  Environmental

• Max. Process Temperature: 5–120°C

• Max. Operating Temperature (Electronics): 5–55°C

• Humidity: 0–100% RH

• Ingress Protection: IP-68 (IEC-60529)

• Service Media: Liquid (Heavy Water, Light Water), Gas, Vapor

  Electrical

• Electrical Connection: 3-Pin Allied Connector

• Power Supply Connection: 2/3-Pin MS Circular Connector

• Test Terminal: Provided (to monitor current without breaking load)

• Grounding: External grounding bolt provided

• Reverse Supply Protection: Yes

  Construction

• Housing: SS-316 for both mild & harsh environments

• Isolating Diaphragm: SS-316L / Hastelloy-C / Other

• Drain & Vent Valves: SS-316L / Hastelloy-C / Monel

• Process Flanges & Adapters: SS-316L / Hastelloy-C / Monel

• Bolts & Nuts: SS-316

ELPRT-100SDP – Smart Differential Pressure Transmitter Features

• Capacitive Sensor with Diaphragm

• ATEX Certified

• Rigid & Rugged Construction

• Rangeability: 100:1

• LCD Display

• Application Flexibility with HART Communication

• Non-Intrusive Magnetic Controls

Description

Electronet series ELPRT-100SDP is a microcontroller-based smart differential pressure transmitter equipped with a high-performance capacitive sensing element. It is designed for precise Differential Pressure (DP) measurement across a wide range of industrial applications.

Suitable for liquids, gases, and vapors, the ELPRT-100SDP provides highly accurate and linear output in the form of 4–20 mA DC with HART communication. Its robust construction, excellent stability, and wide measuring ranges make it ideal for demanding environments.

Technical Specifications Electrical

• Output Signal: 4–20 mA with superimposed HART digital communication

• System: 2-Wire

• Supply Voltage: 12.5–45 V DC

• Signal Range: 3.9 mA – 20.8 mA

• Electrical Protection: Over-voltage and short-circuit protection

• Insulation Resistance: >100 MΩ at 100 VDC

• Reverse Polarity Protection: Available

Measurement

• Measuring Range: Refer Pressure Range Table

• Accuracy:

  1. ±0.075% of URL for span > 5:1

  2. ±(0.05 + 0.03 × (URL / Span))% of Span for span < 5:1

Temperature Limits

• Ambient Temperature: –20°C to +70°C

• Storage Temperature: –40°C to +85°C

• Process Temperature: –20°C to +125°C

Environmental

• Ingress Protection: IP66

• Designed for harsh industrial environments

ELPRT-100SPT – Smart Pressure Transmitter (With Remote Seal) Features

• Piezo Resistive & Capacitive Sensor

• ATEX Certified

• Excellent Long-Term Stability

• Two-Wire System

• Long Operational Life

• Rangeability: 100:1

• LCD Display

• Fast Response Time

• Application Flexibility with HART Communication

Description

Electronet Series ELPRT-100SPT (GP & AP) are smart pressure transmitters designed for accurate measurement of pressure in gases, vapors, and liquids.
They are widely used in refineries, petrochemicals, oil & gas, power plants, chemical industries, food processing, and pharmaceutical industries.

Built on a rugged mechanical structure using advanced silicon and capacitive sensors, these transmitters are suitable for both Gauge Pressure (GP) and Absolute Pressure (AP) applications.
They offer high reliability, long-term stability, and seamless integration with control systems via HART protocol.

Technical Specifications Electrical

• Output Signal: 4–20 mA with superimposed HART digital communication

• System: 2-Wire

• Supply Voltage: 12.5–45 V DC

• Signal Range: 3.9 mA to 20.8 mA

• Electrical Protection: Over-voltage & short-circuit protection

• Insulation Resistance: >100 MΩ at 100 VDC

• Reverse Polarity Protection: Available

Measurement

• Measuring Range: Refer to pressure range table

• Sensor Type: Piezo Resistive & Capacitive

• Application: Gauge Pressure (GP) / Absolute Pressure (AP)

Temperature Limits

• Ambient Temperature: –20°C to +70°C

• Storage Temperature: –40°C to +85°C

• Process Temperature: –20°C to +125°C

Environmental

• Ingress Protection: IP66

• EMC Compliance:

  • IEC 61000-4-3 (Radiated Susceptibility)

  • IEC 61000-4-6 (Conducted Susceptibility)

• Piezo Resistive Sensor

• Measuring Range: 0.1 to 1000 bar

• LCD Indication

• Display Auto Shut-Off Facility

• Battery Operated / Solar Powered

• Reliable & Cost-Effective

• Unit Conversion Facility

• Zero Tare Function

Electronet series PG-20 Digital Pressure Gauges are designed for fast, easy, and trouble-free pressure monitoring.

The gauge includes a display shut-off feature that turns the LCD ON only when required using the push button, significantly saving battery power and ensuring long-lasting operation.
It is suitable for a wide range of industrial applications requiring accurate pressure measurement.

• Sensor Type: Piezo Resistive

• Pressure Range:

  • AP URL: 100 kPa to 600 kPa

  • GP URL: 70 kPa to 100000 kPa (0.1 to 1000 bar)

• Power Supply: Battery Operated / Solar Powered

• Display: LCD Display

• Display Lock: Press ‘ON’ key to activate; display duration programmable

• Battery Backup: 1 to 5 years depending on sampling & messaging frequency

• Communication Output:

  • RS485 (MODBUS RTU)

  • GSM / GPRS

• Accuracy: ±0.25% F.S.
  (Note: Accuracy decreases to ±1% F.S. with remote seal connections)

• Response Time: <200 mSec

• Temperature Compensation: Inbuilt

• Temperature Coefficient: ±0.01% per °C

• Burst Pressure: 3× maximum pressure range

• Over Pressure Safety: 2× maximum pressure range

• Operating Temperature:

  • –20°C to +55°C, Humidity 5–95% RH (non-condensing)

• Process Temperature: –20°C to +120°C

Threaded Options:

1. ¼" NPT

2. ½" NPT

3. ¼" BSP

4. ½" BSP

Flush Diaphragm Options:

• Tri-Clover

• ½" BSP

Connection Point:

• Bottom / Rear

• Mounting: Direct line mount

• Electronics Enclosure: SS / Die-cast Aluminum

• Diaphragm MOC: Hastelloy-C / SS316L

• Sensor MOC: SS316 / Hastelloy-C

• Area Classification: Field Mount, Weatherproof IP65

• Fill Fluid: Silicone Oil

• Weight: Approx. 1 kg

• CE Marking: Provided

PT-22 Digital Pressure Transmitter Features

• Piezo Resistive Sensor

• Measuring Range: 0.1 to 1000 Bar

• Handy & Maintenance-free operation

• Reliable and cost-effective performance

• Ingress Protection: IP65

• Also available with LED Display

Description

Electronet series PT-22 Digital Pressure Transmitters are designed for fast, accurate, and trouble-free pressure measurement across a wide range of industrial applications handling clean gases and liquids.
These transmitters provide a 4–20 mA DC proportional output to the input pressure, with fully stainless steel, hermetically welded wetted parts for high durability and long service life.

Technical Specifications Sensor

• Type: Piezo Resistive

Pressure Range

• AP URL: 100 kPa to 600 kPa

• GP URL: 70 kPa to 100000 kPa

Power Supply

• 24 V DC (Two-wire loop powered)

• 12 to 36 V DC

Display

• LED Display (optional)

Output

• 4–20 mA DC

• 0 to 10 V DC

Output Load

• Max 600 Ω

Performance

• Accuracy: ±0.25% F.S.

• Non-linearity: 0.2% of span

• Repeatability: < 0.1% of span

• Response Time: < 10 mSec (10–90% output change)

Pressure Limits

• Overpressure Safety: 2× maximum range

• Burst Pressure: 3× maximum range

Temperature

• Process Temperature: –20 to 120 °C

• Ambient Temperature: –20 to 55 °C

• Humidity: 5% to 95% RH (non-condensing)

Electrical & Calibration

• Insulation Resistance: >100 MΩ at 100 V DC

• Span / Zero Adjustment: Provided

Connections

• Process Connection: As per ordering information

• Electrical Connection: M12 Connector / DIN 43650 Connector

• Mounting: Direct line mount (Vertical)

Construction

• Wetted Parts: SS316 (other options on request)

• Enclosure: SS316 with IP65 protection

Area Classification

• Field Mount, Weather-Proof IP65

Weight

• Approx. 0.4 kg

Certification

• CE Certified

PT-22SD Pressure Transmitter Features

• Measuring Range: 0.1 Bar to 1000 Bar

• Suitable Media: Liquids & Gases

• Accuracy: < ±0.1% of range

• Response Time: < 1 sec

• Long-term stability

• Robust design for harsh industrial environments

• High voltage & reverse polarity protection

Description

Electronet series PT-22SD Pressure Transmitters are designed for fast, accurate, and trouble-free pressure measurement in a wide range of industrial applications involving clean gases and liquids.
These transmitters provide electrical outputs in 4–20 mA DC or 0–5 V DC, proportional to the input pressure. A PNP alarm output (100 mA max.) is also available.
All wetted parts are made from stainless steel and are hermetically welded for high reliability and durability.

Technical Specifications Sensor

• Type: Piezo Resistive

Measuring Range

• AP URL: 100 kPa to 600 kPa

Power Supply

• 12 to 36 V DC

Display

• LED Display

Outputs

• Output 1: 4–20 mA DC / 0–5 V DC

• Output Load:

  • Max 600 Ω (for 4–20 mA)

  • 10 kΩ (for 0–5 V output)

• Output 2: PNP alarm output (max load 100 mA)

Performance

• Accuracy: ±0.25% F.S.

• Non-linearity: 0.2% of span

• Repeatability: < 0.1% of span

• Response Time: < 10 mSec (10–90% output change)

• Overpressure Safety: 2× max pressure range

• Burst Pressure: 3× max pressure range

Temperature

• Process Temperature: –20 to 120 °C

• Ambient Temperature: –20 to 55 °C

• Humidity: 5% to 95% RH (non-condensing)

Electrical & Mechanical

• Insulation Resistance: >100 MΩ at 100 V DC

• Adjustments: Programmable software calibration

• Process Connection: As per ordering information

• Electrical Connection: 4-Pin M12 Female

• Mounting: Direct line mount (vertical)

Construction

• Wetted Parts: SS316 (options on request)

• Enclosure: SS316 with IP65 protection / ABS Plastic

• Area Classification: Field mount, weather-proof IP65

Certifications

• CE Certified

Weight

• Approx. 0.6 kg

Capacitive Pressure Transmitter

Features

• Capacitive Pressure Sensor

• Measuring Range: 0.015 Bar to 200 Bar

• Robust SS-316 enclosure for superior corrosion resistance

• IP68 protection for reliable performance in harsh and wet environments

• Backlit LCD display for easy visibility

• Switch functionality for flexible control and monitoring

• RS-485 (MODBUS RTU) communication for seamless system integration and remote access

Digital Pressure Transmitter – Piezo Resistive Type Features

• Piezo Resistive Sensor

• Measuring Range: 0.35 to 25 Bar

• Rugged SS-316 enclosure for excellent corrosion resistance

• IP-68 protection for reliable operation in harsh and wet environments

• Backlit LCD display for clear visibility

• Switch functionality for flexible control and monitoring

• RS-485 (MODBUS RTU) communication for seamless system integration

• Suitable for liquids, gases, and industrial pressure monitoring applications

Pressure Transmitter  Key Features

• Piezo Resistive Sensor for precise pressure measurement

• Durable SS-316 enclosure for superior corrosion resistance

• IP-68 protection for reliable performance in harsh and wet environments

• Backlit LCD display for clear visibility

• Switch functionality for flexible control and monitoring

• RS-485 (MODBUS RTU) communication for easy integration (optional)

Technical Specifications Performance Characteristics

• Sensor Type: Piezo Resistive

• Pressure Range:

  • AP URL: 100 kPa to 600 kPa

  • GP URL: 70 kPa to 100000 kPa

• Measuring Units: bar / kPa / Pascal / mmWc / kg/cm²

• Accuracy: ±0.25% MV

• Non-Linearity: 0.2% of Span

• Repeatability: <0.1% of Span

• Response Time: 1 second

• Overpressure Safety: 1.5× max pressure range

• Burst Pressure: 3× max pressure range

Electrical Specifications

• Power Supply: 18–36 V DC

• Display: Backlit LCD

• Output: 4–20 mA

• Relay Output: 1 Relay (Optional)

• Communication: RS-485 MODBUS RTU (Optional)

• Insulation Resistance: >100 MΩ at 100 VDC

Temperature & Environment

• Process Temperature: Up to 120°C

• Ambient Temperature: -20°C to 75°C

• Humidity: 5 to 95% RH (non-condensing)

• Protection Class: IP-68 (Weatherproof)

Material of Construction

• Wetted Parts: SS-316

• Enclosure: SS-316

• Electronics Housing: SS-316

• Electrical Connection: M12 Connector

Mechanical Specifications

• Process Connection: Refer ordering information

• Mounting Options: Direct line mount (vertical) / 2" pipe mount

• Weight: <3 kg