Product Overview
The ADDA-P-WX wireless differential 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 |
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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%F.S.; 0.1 and 0.2 accuracy classes can be customized) |
Overload Pressure | See the range specifications. |
Process Connection | 1/4NPT female thread (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 |
Pressure Type | Differential Pressure | Gauge Pressure | Absolute Pressure |
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Range | 50Pa-10MPa | 200Pa-40MPa | 2kPa-10MPa |
Output Signal | Zigbee(SZ9/A11), LoRa, LoRaWAN, NB-IOT, 4G |
Reference Accuracy | ±0.075% Upper Range Limit, optional ±0.05% Upper Range Limit, see specifications for details | ±0.15% Upper Range Limit, optional ±0.1% Upper Range Limit, see specifications for details |
Differential Pressure Range |
Nominal Range | Minimum Range | Lower Range Limit (LRL) | Upper Range Limit (URL) | Static Pressure Range | High-Side Overload | Low-Side Overload |
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6kPa | 50Pa | -6kPa | 6kPa | 25MPa | 25MPa | 16MPa |
40kPa | 400Pa | -40kPa | 40kPa | 40MPa | 25MPa | 16MPa |
250kPa | 2.5kPa | -250kPa | 250kPa | 40MPa | 25MPa | 500kPa |
1MPa | 10kPa | -500kPa | 1MPa | 40MPa | 25MPa | 500kPa |
3MPa | 30kPa | -500kPa | 3MPa | 40MPa | 25MPa | 500kPa |
10MPa | 100kPa | -500kPa | 10MPa | 40MPa | 25MPa | 500kPa |
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 |
Gauge Pressure Range |
Nominal Range | Minimum Range | Lower Range Limit (LRL) | Upper Range Limit (URL) | Overload |
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6kPa | 50Pa | -6kPa | 6kPa | 25MPa |
40kPa | 400Pa | -40kPa | 40kPa | 25MPa |
250kPa | 2.5kPa | -100kPa | 250kPa | 25MPa |
1MPa | 10kPa | -100kPa | 1MPa | 25MPa |
3MPa | 30kPa | -100kPa | 3MPa | 25MPa |
10MPa | 100kPa | -100kPa | 10MPa | 25MPa |
40MPa | 400kPa | -100kPa | 40MPa | 42MPa |
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 |
Absolute Pressure Range |
Nominal Range | Minimum Range | Lower Range Limit (LRL) | Upper Range Limit (URL) | Overload |
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40kPa | 2kPa | 0kPa | 40kPa | 500kPa |
250kPa | 12.5kPa | 0kPa | 250kPa | 4MPa |
1MPa | 50kPa | 0kPa | 1MPa | 6MPa |
3MPa | 150kPa | 0kPa | 3MPa | 10MPa |
10MPa | 500kPa | 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 | D/G | TD<=5 | ±0.1%Span | 6kPa, 40kPa, 250kPa, 1MPa, 3MPa, 10MPa, 40MPa |
TD＞5 | ±(0.002+0.025TD) % Span |
A | TD<=5 | ±0.2% Span | 40kPa |
±0.1% Span | 250kPa, 1MPa, 10MPa |
TD＞5 | ±(0.005+0.04TD) % Span | 40kPa |
±(0.005+0.025TD) % Span | 250kPa, 1MPa, 10MPa |
Note: TD (Turn down) means turndown ratio, TD= maximum range / current range. |
Ambient Temperature Influence |
6kPa | ± (0.1+0.005TD)%/20 degrees C of Span |
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40kPa , 250kPa, 1MPa, 3MPa, 10MPa | ± (0.075+0.005TD)%/20 degrees C of Span |
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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