Wireless Pressure Transmitter

The ADDA-P-WX wireless pressure transmitter is designed for pressure and level monitoring in smart petroleum, smart water, smart gas, smart heating, and smart fire protection scenarios. Product details describe low-power wireless communication, no-wiring installation, local or remote parameter setting, LCD display, IP67 protection, and optional wireless communication methods.

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 Overview

The ADDA-P-WX wireless pressure transmitter uses monocrystalline silicon piezoresistive sensing technology. This high-stability, high-reliability wireless instrument is suitable for pressure and level monitoring in smart petroleum, smart water, smart gas, smart heating, and smart fire protection applications. It uses ultra-low-power wireless communication and requires no signal wiring, enabling convenient installation.

Applications

1. Smart petroleum    2. Smart water

3. Smart gas    4. Smart heating

5. Smart fire protection

Product Features

Protection Grade: IP67, sealed waterproof design

Supports parameter configuration using local buttons or a remote device.

5-digit segmented LCD with a -30~70 degrees C operating temperature range. Displays pressure, battery level, wireless parameters, and other information.

Adjustable installation direction: connects to the field pipeline valve through a union or adapter, allowing the direction to be adjusted.

19Ah high-energy lithium thionyl chloride battery for long service life; optional battery and external power supply configuration.

High-gain antenna with a maximum wireless transmission distance of 2000m.

Supports private clouds and the matching cloud platform. Supports sending data to a specified IP address or website.

Ultra-low power consumption and a WDT watchdog design support stable long-term operation. Upper and lower alarm limits and dynamic-change thresholds can be configured; alarm information is reported immediately.

Supports data access through a mobile app and data reading by OPC configuration software.

Technical Specifications

Communication Method

Zigbee

(SZ9/A11)

LoRa

LoRaWAN

NB-IOT

4G

Parameter Configuration

Local

Local

Local

Remote

Remote

Power Supply

Lithium thionyl chloride battery (capacity: 19Ah); default sampling interval: 3 seconds

Data Interval (minutes)

5

1

20

60

60

Battery Life

3 years

3 years

4 years

2 years

3 years

Measuring Medium

liquids, gases

Operating Mode

Scheduled data transmission with an adjustable transmission interval.

Threshold Settings

Configurable pressure upper and lower limits and dynamic-change thresholds.

Measuring Range

-0.1~40MPa

Accuracy Class

0.1 class (default 0.25%FS; 0.1 and 0.2 accuracy classes can be customized)

Overload Pressure

See the range specifications.

Process Connection

M20*1.5 (other connections can be customized)

Temperature Compensation

-20~70 degrees C

Operating Environment

Temperature: -30 degrees C~70 degrees C; humidity: <93%RH

Housing Material

Cast aluminum

Protection Grade

IP67

Range

Pressure Type

Nominal Range

Minimum Range

Lower Range Limit (LRL)

Upper Range Limit (URL)

Overload

G

40kPa

2kPa

-40kPa

40kPa

1MPa

250kPa

12.5kPa

-100kPa

250kPa

4MPa

1MPa

50kPa

-100kPa

1MPa

6MPa

3MPa

150kPa

-0.1MPa

3MPa

15MPa

10MPa

500kPa

-0.1MPa

10MPa

20MPa

40MPa

2MPa

-0.1MPa

40MPa

80MPa

A

40kPa

20kPa

0kPa

40kPa

1MPa

250kPa

50kPa

0kPa

250kPa

4MPa

1MPa

100kPa

0kPa

1MPa

6MPa

3MPa

300kPa

0kPa

3MPa

10MPa

10MPa

1MPa

0kPa

10MPa

20MPa

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

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 Accuracy

G

TD<=5

±0.1% Span

40kPa, 250kPa , 1 MPa,

3MPa, 10MPa, 40MPa

TD>5

±(0.005+0.02TD) % Span

40kPa, 250kPa, 1 MPa,

3MPa, 10MPa, 40MPa

A

TD<=5

±0.2% Span

40kPa

±0.1% Span

250kPa, 1MPa, 3MPa, 10MPa

TD>5

±(0.005+0.04TD) % Span

40kPa

±(0.005+0.025TD) % Span

250kPa, 1MPa, 3MPa, 10MPa

Note: TD (Turn down) means turndown ratio, TD= maximum range / current range

 

Ambient Temperature Influence

Pressure Type

Influencing Quantity

Range

G

± (0.075+0.005TD) %/20 degrees C of Span

40kPa, 250kPa, 1 MPa,

3MPa, 10MPa, 40MPa

A

± (0.1+0.005TD) %/20 degrees C of Span

40kPa, 250kPa, 1MPa, 3MPa, 10MPa

Environmental Conditions

Item

Condition

Operating Ambient Temperature Range

-40 degrees C ~ 85 degrees C, LCD display: -30 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 Range

Silicone oil filling: -40 degrees C ~ 85 degrees C

Inert filling liquid: -20 degrees C ~ 80 degrees C

Operating Ambient Humidity Range

5%RH~93%RH@40 degrees C

Hazardous Area

PCEC

Certificate No.: CE23.2876X 

Ex db IIC T6 Gb

Ex tb IIIC T80 degrees C Db

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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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