Sanitary Absolute Pressure Transmitter

The ADDA-P-1GW sanitary absolute pressure transmitter is designed for pressure and level measurement in food, beverage, pharmaceutical, and bioengineering applications. Product details describe an all-stainless-steel sanitary structure, 355° rotating LCD module, monocrystalline silicon piezoresistive technology, 4–20 mA DC + HART or Modbus-RTU/RS485 output, and IP67 protection.

Authoritative Qualification Certifications

We hold ISO quality certification, national high-tech enterprise qualification, China measuring instrument type approval, and explosion-proof and safety certifications to support reliable product quality.

Custom Engineering

Configurable materials, connections, signals, displays, and installation solutions for different process environments.

Product Features

The ADDA-P-1GW smart flush diaphragm pressure transmitter is designed for sanitary applications in food, beverage, pharmaceutical, and bioengineering industries. It features an all-stainless-steel structure and a dot-matrix LCD module that supports 355° rotation. The hygienic design has no dead spaces and is designed to comply with FDA requirements.

  • Uses monocrystalline silicon piezoresistive technology for stable performance, with accuracy up to 0.1%F.S.
  • Hygienic design complies with EHEDG, 3A, FDA, and GMP requirements.
  • Wetted material surface roughness down to Ra 0.4
  • Supports CIP-SIP cleaning, with temperature resistance up to 150 degrees C
  • Uses a high-performance EMC protection circuit module to reduce electromagnetic interference with the output.
  • High stability: ±0.2% Span/5 years

Applications

Pressure and level measurement in food, beverage, pharmaceutical, and other sanitary applications.

Measuring Medium

Media compatible with the wetted materials.

Performance Specifications

Accuracy±0.1%, ±0.2% Upper Range Limit, see specifications for details
Range10kPa~40MPa, see selection table for details
Annual Stability±0.2% Span/5 years
Ambient Temperature Influencesee specifications for details
Voltage InfluenceWhen the supply voltage varies within 10.5V/16.5V~36V DC, the changes in zero point and span shall not exceed ±0.001%URL/V
Mounting Position InfluenceTransmitter installation may cause zero error, this error can be corrected by zero adjustment, with no effect on accuracy
Vibration InfluenceTested according to GB/T18271.3/IEC61298-3 test, < 0.1%
Output Signal4mA~20mADC+HART

Modbus-RTU/RS485

Protection GradeIP67

Range

Pressure TypeNominal RangeMinimum RangeLower Range Limit (LRL)Upper Range Limit (URL)Overload*
G40kPa10kPa-40kPa40kPa1MPa
250kPa25kPa-100kPa250kPa4MPa
1MPa50kPa-100kPa1MPa6MPa
3MPa150kPa-0.1MPa3MPa15MPa
10MPa500kPa-0.1MPa10MPa20MPa
40MPa2MPa-0.1MPa40MPa80MPa
A40kPa20kPa0kPa40kPa1MPa
250kPa50kPa0kPa250kPa4MPa
1MPa100kPa0kPa1MPa6MPa
3MPa300kPa0kPa3MPa10MPa
10MPa1MPa0kPa10MPa20MPa
High and low limit setting requirements: lower range value (LRV) and upper range value (URV) must be set within the lower and upper range limits, |URV-LRV|≥ Minimum Range

*The overload values refer to the maximum overload range of the sensor. The maximum overload range of the transmitter ultimately depends on the pressure rating of the process connection.

Accuracy

Based on standards and reference test conditions, including best fit straight line (BFSL), hysteresis, repeatability. Calibration temperature :20 degrees C ±5 degrees C.
Linear Output AccuracyGTD<=5±0.2% Span40kPa
±0.1% Span250kPa , 1 MPa, 3MPa, 10MPa, 40MPa
TD>5± (0.005+0.045TD) % Span40kPa
± (0.002+0.03TD) % Span250kPa,  1 MPa, 3MPa, 10MPa, 40MPa
ATD<=5±0.2% Span40kPa
±0.1% Span250kPa, 1MPa, 3MPa, 10MPa
TD>5± (0.005+0.05TD) % Span40kPa
± (0.005+0.03TD) % Span250kPa, 1MPa, 3MPa, 10MPa
Note: TD (Turn down) means turndown ratio , TD= maximum range / current range

Ambient Temperature Influence 

Pressure TypeInfluencing QuantityRange
G± (0.1+0.015TD) % 20 degrees C of Span40kPa, 250kPa

1MPa, 3MPa, 10MPa, 40MPa

A± (0.1+0.015TD) % 20 degrees C of Span40kPa, 250kPa

1MPa, 3MPa, 10MPa

Environmental Conditions

ItemCondition
Operating Ambient Temperature Range-40 degrees C ~85 degrees C, LCD display: -20 degrees C ~70 degrees C
Storage Ambient Temperature Range-40 degrees C ~100 degrees C, LCD display: -40 degrees C ~85 degrees C
Measured Medium Temperature RangeSanitary fill oil: -20 degrees C ~150 degrees C
Operating Ambient Humidity Range5%RH~100%RH@40 degrees C
Hazardous AreaPCECCertificate No.: CE20.2148X Certificate No.: CE23.0612X

Ex ia IIC T6 Ga Ex db IIC T6 Gb

Ex tb IIIC T80 degrees C Db

Time Specifications

Total damping time constant: equals the sum of the electronic circuit component damping time constant and sensor capsule damping time constant
Electronic circuit component damping time: 0s~99s adjustable range
Overall response time: <= 90ms

Electromagnetic Compatibility Environment (current signal only)

No.Test ItemBasic StandardTest ConditionPerformance Level
1Radiated Disturbance (Enclosure)GB/T 9254.1/CISPR2230MHz-1000MHzB (Note 2)
2Conducted Disturbance (DC Power Port)GB/T 9254.1/CISPR220.15MHz-30MHzB (Note 2)
3Electrostatic Discharge (ESD) ImmunityGB/T 17626.2/IEC61000-4-24kV (contact), 8kV (air)A (Note 1)
4RF Electromagnetic Field ImmunityGB/T 17626.3/IEC61000-4-310V/m (80MHz-1GHz)A (Note 1)
5Power Frequency Magnetic Field ImmunityGB/T 17626.8/IEC61000-4-830A/mA (Note 1)
6Electrical Fast Transient/Burst ImmunityGB/T 17626.4/IEC61000-4-42kV (5/50ns, 100kHz)A (Note 1)
7Surge ImmunityGB/T 17626.5/IEC61000-4-54kV (line-to-line)

2kV (line-to-ground)

A (Note 1)
8Conducted Disturbance Immunity Induced by RF FieldsGB/T 17626.6/IEC61000-4-63V (150kHz-80MHz)A (Note 1)
Note 1: For performance level A, performance remains normal within the technical specification limits

Note 2: For performance level B, function or performance may temporarily decrease or be lost, but can recover automatically, actual operating status, storage and data remain unchanged

Power Supply and Load Conditions

ItemOperating Condition 
Power Supply VoltageHART communication protocol: 16.5V~36V DC
Intrinsically safe version: HART communication protocol: 18.5V~28V DC
Modbus-RTU/RS485: 12V~36V DC
Load Resistance0Ω~2119Ω during operation

250Ω~600Ω for HART communication

Transmission Distance< 1000m
Power Consumption
4mA~20mA<= 500mW@24V DC, 20.8mA
Modbus-RTU/RS485<= 240mW@24V DC, 10mA

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Frequently Asked Questions

Find quick answers about product selection, customization, technical parameters, delivery, and support for ADDA industrial measurement instruments.

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Please provide the measured medium, measuring range, process temperature, process pressure, connection type, output signal, power supply, installation environment, and communication method if remote monitoring is required.

Yes. ADDA can provide customized solutions based on measuring range, process connection, wetted material, display type, communication protocol, installation method, and working environment.

Many ADDA instruments are available with explosion-proof or intrinsically safe configurations. Please confirm the site classification and certification requirements before selection.

Yes. Our team can help recommend a suitable instrument configuration after reviewing your application conditions, including medium, range, connection, output signal, and installation requirements.

Lead time depends on product type, quantity, customization requirements, and certification needs. Standard products usually have a shorter delivery time, while customized models may require additional production time.

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