Setra 268 Series Micro Differential Pressure Transmitter 4-20mA
| Attribute |
Value |
| Brand Name |
Setra |
| Model |
268/268 Ex/268Mr |
| Output Signal |
4-20mA |
| Voltage |
24VDC |
| Measuring Range |
0 ~ 25Pa |
| Operating Temperature |
-18 ~ +65℃ |
Product Introduction
The Setra 268 Series Micro Differential Pressure Transmitter is a high-performance instrument built on Setra's unique variable capacitance sensing technology. It features a stainless steel diaphragm and a fixed electrode, where pressure changes alter the capacitance value, which is then converted into a linear DC signal via a specialized detection circuit.
With a minimum measurement range of 0~25Pa and a maximum of 0~25KPa, it offers reliable pressure measurement for differential or gauge (static) pressure, outputting a proportional 4-20mA current signal with a 24VDC excitation voltage. Its excellent performance-to-price ratio makes it widely applicable in various industrial fields.
Features
- Variable Capacitance Sensing: Utilizes SETRA's proprietary variable capacitance sensing technology for accurate and stable pressure measurement.
- Durable Construction: Stainless steel subarc welding sensitive element ensures robustness, and the elastic diaphragm can withstand 70KPa overpressure (positive/negative) without damage.
- Temperature Compensation: Equipped with a temperature compensation circuit, the temperature influence is less than ±0.06%FS/°C within the 5~65°C range, ensuring stable performance across varying temperatures.
- Multiple Accuracy Options: Standard accuracy is ±1%FS at room temperature, with optional higher accuracies of ±0.4% and ±0.25%FS to meet more demanding applications.
- On-Site Range Selection: Offers 6 on-site optional ranges, providing flexibility to adapt to different measurement requirements.
- Cast Aluminum Housing: The cast aluminum housing enhances durability and protection, suitable for various industrial environments.
Specifications
Model: 268
Measurement Type: Differential pressure, gauge (static) pressure
Measurement Range: 0~25Pa to 0~25KPa
Output Signal: 4-20mA
Excitation Voltage: 24VDC
Accuracy: ±1%FS at room temperature; optional ±0.4%FS, ±0.25%FS
Temperature Compensation Range: 5~65°C
Temperature Influence: ≤±0.06%FS/°C
Overpressure Resistance: 70KPa (positive/negative)
Housing Material: Cast aluminum
Applications: Environmental pollution control, clean engineering, oven pressurization and furnace pass risk control systems, natural gas and gas pipe network monitoring, underground ventilation monitoring, thermal power plant air supply system
