Description
SPT-03D Smart Differential Pressure Transmitter
The SPT-03D smart differential pressure transmitter is a multifunctional digital instrument designed for precise and reliable differential pressure measurement in industrial environments. It integrates advanced and proven silicon or capacitive sensor technology with modern microcontroller architecture and digital signal processing.
A high-performance microcontroller serves as the core component, delivering fast response times, powerful functionality, and consistent measurement accuracy. The overall design prioritizes reliability, stability, high precision, and intelligent operation, making it ideal for demanding applications.
The transmitter features a user-friendly interface with a digital display showing pressure, percentage, and current values, alongside a 4–20 mA analog output. Keypad configuration allows easy adjustment of essential parameters such as zero calibration, measurement range, and damping—without the need for an external pressure source—simplifying on-site setup and commissioning.
Dedicated integrated circuits are used for signal conversion, acquisition, processing, and output control. This ensures stable performance, excellent shock resistance, and high interchangeability, making the SPT-03D a robust and dependable solution for process control systems.
DOWNLOADS: SPT-03D Smart Differential Pressure Transmitter Datasheet
Features
- Utilizes reliable silicon sensor or capacitance sensor
- Stable, reliable, anti-vibration with excellent interchangeability
- Powerful interface operation function
- Optional signal output
- Offset and full scale adjustable
- LCD display
- Multiple installation options available
Applications
- Oil and gas industry
- Chemical industry
- Pharmaceutical industry
- Water treatment industry
- Food and beverage industry
- Laboratory and scientific research
- Power industry
- Metallurgical industry
Specifications
| Parameter name | Parameter description |
|---|---|
| Accuracy | ±0.01bar: ±0.02% FS; ±0.06bar: ±0.1% FS; other range: ±0.075% FS（standard range 25±5℃) |
| Range | ±0.01bar; ±0.06bar; ±0.4bar; ±1bar; ±2.5bar; ±10bar; ±30bar |
| Range type | Differential pressure |
| Output signal | 4~20mA +HART, 4~20mA+RS485 ModbusRTU |
| Long-term Stability | ±0.1% FS/year |
| Ambient temperature effect | ±0.5% FS（±0.01bar); ±0.3% FS（±0.06bar); ±0.25% FS（other range); @-20℃～70℃ |
| Static pressure range | ±0.01bar; ±0.06bar; ±0.40bar Static Load Resistance 160bar ±1bar; -1～2.5bar Static Load Resistance 250bar -1～10bar; -1～30barStatic Load Resistance 400bar |
| Over Pressure Limit | 160bar |
| Voltage Influence | When the supply voltage varies within 18.3V to 44V DC, the changes in zero point and span shall not exceed ±0.005% URL/V |
| Mounting Position Influence | The device can be installed in any orientation, with a maximum deviation not exceeding 400 Pa, which can be corrected via the zeroing function |
| Housing protection | IP67 |
| Weight | Net weight: about 4kg (no mounting bracket, process connection accessories) |
