Type: | Differential Pressure Transmitter |
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Structure Type: | Capacitive Pressure Transmitter |
Measuring Medium: | Liquid |
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1. Overview
The ABBe 266DSH differential pressure (DP) transmitter is a high-performance instrument designed for precision measurements in industrial applications. Combining long-term stability with advanced functionality, it embodies ABBe's commitment to delivering solutions that enhance operational efficiency and safety. The 266DSH features a standard DP-style design, suitable for diverse industries including oil and gas, chemical processing, power generation, and water treatment. Its modular architecture, predictive maintenance capabilities, and compliance with stringent safety standards make it a versatile choice for critical processes .
2. Key Features
2.1 In-Field Replaceable Electronics
The 266DSH incorporates a field-replaceable electronics module with auto-configuration, significantly reducing downtime during maintenance. This plug-and-play functionality ensures seamless integration into existing systems while lowering inventory costs for spare parts. The intuitive interface allows quick setup, enabling technicians to replace modules without recalibrating the entire system .
2.2 Through-The-Glass (TTG) Technology
A standout innovation, TTG technology enables configuration and parameter adjustments without removing the front cover. Users can interact with the touch-sensitive display through the protective window, minimizing exposure to hazardous environments and saving time during field operations. This feature is particularly advantageous in explosive or harsh conditions
2.3 Plugged Impulse Line Detection
Standard on the 266DSH, this predictive maintenance feature detects blockages in impulse lines before they cause process disruptions. By alerting operators to potential issues, it prevents unplanned shutdowns and optimizes maintenance schedules .
2.4 WirelessHART Communication
The transmitter supports WirelessHART protocol, enabling remote monitoring of hard-to-reach or hazardous locations. With a battery life exceeding 10 years at 32-second update rates, it eliminates the need for complex wired infrastructure, reducing installation and maintenance costs. This wireless capability expands measurement points without compromising safety .
2.5 SIL2/SIL3 Certification
Certified by TÜV Nord under IEC 61508, the 266DSH meets Safety Integrity Levels (SIL) 2 and 3, making it suitable for safety-critical loops. This certification ensures reliable performance in applications requiring fail-safe operation and robust risk mitigation .
Category | Specifications |
Base Accuracy | ±0.06% of calibrated span (optional ±0.04% with advanced calibration) |
Long-Term Stability | ≤0.15% of URL (Upper Range Limit) per 10 years |
Turn-Down Ratio | Up to 100:1 |
Span Limits | Sensor Code-Dependent:- Sensor A: 0.05 kPa to 1 kPa- Sensor H: 1.6 kPa to 160 kPa- Sensor S: 160 kPa to 16,000 kPa |
Output Signals | 4-20 mA with HART, FOUNDATION Fieldbus, PROFIBUS PA, WirelessHART |
Process Connection | 1/4" NPT female (horizontal) or flange-mounted (ASME B16.5/EN 1092-1) |
Diaphragm Material | AISI 316L stainless steel |
Fill Fluid | Silicone oil (standard) or inert Galden (optional) |
Housing Material | Aluminum alloy (barrel version) with IP67 protection |
Weight | ~4.5 kg (varies by configuration) |
Power Supply | 10.5-55 V DC |
Communication Protocols | HART 7, FOUNDATION Fieldbus, PROFIBUS PA, WirelessHART (IEC 62591-compliant) |
Battery Life (WirelessHART) | Up to 10 years at 32-second update intervals |
Ambient Temperature | -40°C to +85°C (-40°F to +185°F)Special option: -50°C to +85°C (-58°F to +185°F) |
Process Temperature | -40°C to +121°C (-40°F to +250°F) with silicone oil-20°C to +100°C (-4°F to +212°F) with Galden |
Storage Temperature | -50°C to +85°C (-58°F to +185°F) |
Overpressure Protection | Silicone Oil Sensors:- Up to 21 MPa (210 bar, 3045 psi) for sensors F-S- 2 MPa (20 bar, 290 psi) for sensor A |
Static Pressure Limits | Sensor F-S: 1.3 kPa abs to 21 MPa (210 bar, 3045 psi) |
Flange Ratings | ASME B16.5:- Class 150: 230 psi- Class 300: 600 psi |
Safety Standards | SIL 2 (1oo1) / SIL 3 (1oo2) certified (IEC 61508) |
Packing:Original Carton boxes