PDS843 Differential Pressure Transmitter
Designed for differential pressure measurement of liquids, gases, and steam. Supports flow, level, and differential pressure monitoring in high static pressure applications, with intelligent diagnostics.
Technical data
| Best measurement accuracy: | ±0.025%FS | Measuring range: Differential: | -0.5 to 14 MPa; minimum micro-differential span: 50 Pa |
| Maximum turndown ratio: | 100:1 | Process temperature: | Silicone oil:-40°C to +120°C; fluorinated oil: -52°C to +120°C |
| Pressure rating: | Static pressure: 16 MPa for standard differential-pressure models; 42 MPa for high-static-pressure models. | Communication protocols: | HART 7, PROFIBUS-PA 3.02, FOUNDATION Fieldbus 6.1.1, Ethernet-APL, AutBus |
| Output signal: | 4–20 mA DC with HART; digital fieldbus signals | Power supply: | 4–20 mA: 10.5 to 45 VDC; HART communication: 15.8 to 45 VDC; PA/FF: 9 to 32 VDC; Ethernet-APL: 9.6 to 15 VDC |
| Long-term stability: | Differential-pressure models: ≤±0.1%FS over 10 years; micro-differential-pressure ranges C and D: ≤±0.2%FS over 10 years. | Body temperature effect at 1:1 turndown: | Differential-pressure models: ≤±0.07%FS/28°C; micro-differential-pressure ranges C and D: ≤±0.14%FS/28°C. |
| Response time: | ≤90 ms | Ambient temperature: | -40°C to +85°C |
| Ingress protection: | IP66/IP67 | Damping setting: | 0 to 100 s |
| Electrical entries: | M20×1.5; 1/2 NPT | HART loop load: | 230 to 500 Ω |
| Power supply effect: | ≤0.005% of calibrated span/V |
Features & Benefits
Multiple Measurements, Flexible Applications
A single transmitter for flow, level, and differential pressure measurement.
High Static Pressure, Reliable Performance
High static pressure model for high pipeline pressure applications.
Low Differential Pressure, Sensitive Measurement
Low differential pressure model for low differential pressure measurement.
Smart Diagnostics, Anomaly Detection
Intelligent diagnostics for monitoring transmitter status and process anomalies.
Multiple Protocols, Explosion Protection Options
Supports multiple communication protocols and explosion-proof configurations.
Certifications
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IECEx Explosion Protection Certification
Certified to the IEC 60079 series for intrinsic-safety and flameproof protection.
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ATEX Explosion Protection Certification
Complies with EU Directive 2014/34/EU for equipment used in explosive atmospheres.
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CE-EMC Electromagnetic Compatibility Certification
Complies with Directive 2014/30/EU and EN IEC 61326-1 electromagnetic compatibility requirements.
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BV Marine Type Approval
Type approved by Bureau Veritas for ships and offshore units.
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SIL Functional Safety Certification
Complies with IEC 61508 functional safety requirements for SIL 2 and SC 3.
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EAC 012 Explosion Protection Certification
Complies with TR CU 012/2011 explosion-protection requirements for the Eurasian Economic Union.
Applications
Power & Energy
Boiler draft pressure, flow, and level measurement
Oil & Gas
pipeline flow and filter differential pressure monitoring
Chemical Processing
Reactor level, flow, and equipment differential pressure
Water & Wastewater Treatment
Pump sets, filtration systems, and flow devices
Metallurgy
Furnace draft pressure, gas flow, and dust collection systems
Case Studies
Shandong Weiqiao Pioneering Group Co., Ltd.
Zhanhua Alumina Phase III Project
CNOOC China Limited, Zhanjiang Branch
Onshore Terminal for the Wushi 17-2 Oilfields Development Project
Zhejiang Petrochemical Co., Ltd.
40 Million Tonnes per Year Integrated Refining and Petrochemical Project
Kweichow Moutai Co., Ltd.
Moutai Plant Boiler Water Treatment System Upgrade Project
Nine Dragons Worldwide (China) Investment Group Co., Ltd.
High-Grade Specialty Paper Production Line Construction Project
Wanhua Chemical Group Materials Co., Ltd.
10,000 Tonnes per Year Lithium Hexafluorophosphate Project
