Introducing the cutting-edge PDS843 differential pressure transmitter, a quintessential device in the Highpeak Steam Flow Monitor series from Cold Valley Intelligent Technology (Shanghai) Co., Ltd. This innovative instrument is engineered to precisely measure the differential pressure and flow across a variety of media, including liquids, gases, and steam. It seamlessly translates these measurements into a reliable 4-20mA d.c. current output, enhanced with HART communication. Moreover, this sophisticated equipment is compatible with advanced PROFIBUS-PA and FF communication protocols. Embrace the future of technology with its state-of-the-art remote setting capabilities, allowing for effortless configuration and monitoring through advanced communication devices, making it an indispensable tool for modern industry applications.
Features
High Stability The PDS intelligent transmitter boasts an extraordinary basic accuracy of 0.04%FS, with options reaching an impressive 0.025%FS. Even after a decade of continuous operation, it remarkably retains an astounding 99.9% accuracy, significantly reducing maintenance expenses. Encased in a robust metal shell and equipped with fully sealed measurement components, the PDS transmitter is designed to withstand extreme chemical and mechanical stresses effortlessly. Its formidable anti-electromagnetic interference capabilities, paired with a comprehensive lightning protection function, guarantee unmatched stability and reliability.
Intelligent Diagnosis Equipped with an advanced integrated diagnostic function, the PDS intelligent transmitter continuously monitors both operational processes and its own status in real-time. Upon surpassing predefined event thresholds, it transitions into a fault alarm state, emitting an alarm current of either 3.6 or 22.8mA, thereby providing crucial control signals for system interlocking or SIS security systems. During such events, the LCD screen prominently displays "Err," and automatically identifies and displays the faulty components, thus simplifying maintenance, repair, and replacement procedures. This diagnostic feature is further enhanced with the ability to be initiated via HART, FF, PA, and other protocol communications, allowing the alarm to manifest as either a warning or a protective fault current. It automatically checks the health of SENSOR, ROM, RAM, EEPROM, and software, facilitating straightforward replacement of any damaged electronic units or measurement elements directly on-site, without the need for recalibration.
Simulation The transmitter's simulation function is engineered to emulate process states accurately, delivering precise measurement data while also helping to verify the transmitter circuit's connection and output status. This simulation's output parameters encompass pressure, sensor temperature, and electronic temperature, with options for fixed value or linear function simulation. Throughout the simulation process, the transmitter output remains steady, unaffected by field pressure, and seamlessly reverts to its normal measurement state following a key operation or power reset.
Product Parameters
Basic accuracy: Experience unparalleled precision with an accuracy of ±0.04%, and at its best, a remarkable ±0.025%!
Range ratio: An impressive range ratio of 100:1, ensuring versatility and adaptability for various applications.
Response time: Lightning-fast response time of 90ms, with a swift data refresh interval of just 50ms!
Range range: Capable of handling differential pressure from 0-100 Pa to an astounding 14MPa.
Pressure of 0-1 kPa-70MPa: From minimal to extreme pressures, manage 0-1 kPa up to a formidable 70MPa.
Output signal: Seamlessly communicate with a 4-20 mA signal superimposed with the HART protocol (HART6.0/ HART 7.0).
PROFIBUS-PA fieldbus communication (version 3.02): Offering robust and reliable communication via PROFIBUS-PA fieldbus, version 3.02.
FF Fidbus Communication (Version 6.1.1): Enjoy advanced communication capabilities with FF Fidbus, version 6.1.1.
Overload limit: differential pressure of 42MPa: Built to withstand overloads with a differential pressure limit of 42MPa.
Pressure of 105MPa: Endure pressures up to an impressive 105MPa!
Effect of the static pressure: 0.03%FS / 16MPa: Maintain accuracy despite static pressure effects, with an impact of merely 0.03%FS at 16MPa.
Temperature range: Ambient temperature-40ºC ~80ºC: Operates reliably from -40ºC to 80ºC, accommodating extreme ambient conditions.
Process temperature-90ºC~700ºC: Suitable for a wide range of process temperatures, from -90ºC to a scorching 700ºC.
LCD temperature-35ºC~80ºC: The LCD functions optimally between -35ºC and 80ºC.
Long-term drift: Exceptionally stable with a long-term drift of just ±0.1%FS over 10 years.
Temperature Effect: (0.06 * r + 0.01)% / 28ºC (-40ºC ~80ºC): Minimal temperature effect, calculated as (0.06 * r + 0.01)% across -40ºC to 80ºC.
Explosion-proof grade: NEPSI: Built to perform safely with Ex iaIICT4 Ga certification for ambient temperatures of -40ºC to 60ºC.
NEPSI: Intrinsic Ex iaIICT6 Ga (Note 1): Certified for safe operation in environments from -40ºC to 40ºC.
NEPSI: explosive type Ex dIICT6 Gb: Ensures safety under explosive conditions within an ambient range of -40ºC to 60ºC.
NEPSI: Dust explosion Ex tD A21 IP67 T85ºC: Dust explosion protection rated to IP67 and T85ºC.
NEPSI: 'n' explosion-proof Ex nACT6 Gc: Certified for 'n' explosion-proof safety, from -40ºC to +60ºC.
ATEX: Ben Ex II 1 G Ex iaIICT4 Ga: ATEX certified ensuring high safety standards with Ex iaIICT4 Ga.
ATEX: burst Ex II 1 / 2 G Ex dbIICT6-T 4 Ga / Gb: Designed for safety in burst conditions, ATEX certified Ex dbIICT6-T 4 Ga / Gb.
IECEx: Intrinsic safety Ex iaIICT4 Ga: Globally recognized IECEx certification for intrinsic safety.
IECEx: burst Ex dbIICT6-T 4 Ga / Gb: Achieves safety excellence with IECEx burst certification for Ex dbIICT6-T 4 Ga / Gb.
Company Profile
Cold Valley Intelligent Technology (Shanghai) Co., Ltd. is a distinguished member of the highly respected Hanshan (Cold Mountain) Intelligent Technology Co. family. The Hanshan Intelligent Technology Co., Ltd. group (hereinafter referred to as Hanshan Group) planted its foundational roots in the dynamic metropolis of Shanghai back in 2013. Our founding team is composed of seasoned industry veterans from leading international automation corporations, bringing to the table an impressive 20+ years of experience in automation, engineering, alongside a solid decade of consulting and implementing cutting-edge digital solutions. Our mission? To consistently provide top-tier automation and digitalization products and services to a worldwide clientele, all from our strategic headquarters in the vibrant city of Shanghai, China. For more than 20 years, we have been deeply involved in the petrochemical industry, with an insightful understanding of the automation and digitalization demands of enterprises spanning upstream, midstream, and downstream operations. Our offerings include expert products, bespoke solutions centered around automation and digitalization, and all-inclusive life cycle services aimed at sectors such as petroleum, chemicals, electric power, biomedicine, APIs, food and beverage, liquor, metallurgy, and non-ferrous metals.