Setra 268 Series Micro Differential Pressure Transmitter

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

Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of  measuring instruments , located in China xi’an City. Since 2008, Xi'an Kacise focused on the development and production of pressure, level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical and management personnel, through efforts of our entire staff, we have become a professional measuring instrument manufacturer and solution provider. And we are continuously trying to improve product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE, intrinsic safety explosion-proof and isolated safety explosion-proof certificates, etc. which ensure that our products comply with international standards.

Kacise sensors have already been exported to America, Spain, Australia, Chile and 20 other countries and regions, and received many favorable feedbacks. Our overseas distributers are also increasing. We regard “reasonable prices, efficient production time and good after-sales service” as our tenet, and hope to cooperate with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices, and provides industry-leading customer service. We personally get to know each of our customers, and we know how to discover the most valuable part of our business , to help others achieve their goals.