Utmost U529 series smart valve positioner adopts the newest advanced micro processing and intelligent measurement and control technology, based on 3 / 3 slide nozzle baffle valve and solenoid valve technology, with single and double-acting, Hart, remote transmission, flameproof, explosion-proof function, developed by China valve oem intelligent positioner and the United States R&D team, verified under the harsh operation conditions, has achieved good performance.
Single/Double acting;
Greatly enhanced the instrument air adaptability and anti-fouling ability(water, dust, and oil), with Nozzle baffle I/P structure;
Smart positioner flow characteristics can be free setting (linear, quick opening, equal percentage,) and easy to control;
Safe, reliable, practical with equipped with a built-in LCD screen and integrated debugging button;
Fast self-diagnosis (2-3 minutes to complete the whole stroke);
Digital valve positioner, limit switches, and other internal electrical modules can be integrated;
Easily remote for smart positioner for control valve checking and diagnosis with Hart communication module;
High adjustment precision, can realize the accuracy of 0.1% intelligent valve control with intelligent control algorithm;
Three valve termination and three fault reset functions can be achieved;
Low power consumption (25L/h I/P low power consumption, low air consumption: locator);
Data backup and storage functions, effectively solve the problem of online replacement, debugging;
Meet IEC534 (NAMUR).
| Item | U529N/I | U529D |
| Explosion-proof | Without Ex protection or explosion protection "ia" | Explosion Protection |
| Input Signal | 4-20 mA | |
| Inlet air pressure | 0.14~0.6Mpa(G) | |
| Stroke | Linear: 10~150mm | |
| Angle: 0~120° | ||
| Control Accuracy | ± 0.2% F.S. | |
| Hysteresis | ± 0.2% F.S. | |
| Repeatability | ± 0.2% F.S | |
| Impedance | Max. 460Ω/20 mA(DC) | |
| Output characteristic | Linear, ON/OFF, Equal percentage or User defined | |
| Air Consumption | Stable gas consumption 25L/h | |
| Connections | Pneumatic 1/4NPT or G1/4 | |
| Electrical 1/2NPT | ||
| Ambient temperature | -40~80℃ | |
| Housing Material | Aluminum or Stainless steel | |
| Weight, basic device | About 2.0Kg | About 3.6 Kg |
| Performance | UTM | ABB | SAMSON | Azbil | Comparative description |
| Pneumatic components | Digital I/P converter 3/3 Pneumatic valve | Analog I/P converter 3/3 Pneumatic valve | I/P converter Pneumatic amplifier | I/P converter Pneumatic amplifier | Better than imported brand |
| I/P Drive mode | Digital(PWM) | Analog(Voltage) | Analog(Voltage) | Analog(Voltage) | Better than imported brand |
| I/P Consumption | 0.8mW | 1.6mW | 5mW | 18mW | Better than imported brand |
| Seismic-Resistance | 2g | 2g | 2g | 1g | Meet the imported brands level |
| Temperature compensation | With | With | With | Without | Meet the imported brands level |
| Air pressure | 1.4-6 bar | 1.4-6 bar | 1.4-6 bar | 1.4-7 bar | Meet the imported brands level |
| Air quality | According to DIN/ISO 8573-1 Pollution and oil content according to Class 3 max.concentration = 1 mg / m3; pressure dew point: 10 K below | According to DIN/ISO 8573-1 Pollution and oil content according to Class 3 max.concentration = 1 mg / m3; pressure dew point: 10 K below | According to DIN/ISO 8573-1 Pollution and oil content according to Class 3 max.concentration = 1 mg / m3; pressure dew point: 10 K below | According to DIN/ISO 8573-1 Pollution and oil content according to Class 3 max.concentration = 1 mg / m3; pressure dew point: 10 K below | Meet the imported brands level |
| Air consumption | 0.056Nm3/h | 0.085Nm3/h | 0.11Nm3/h | 0.24Nm3/h (1.4 bar) 0.3Nm3/h (5 bar) | Better than imported brand |
| Precision | 0.1%-0.3% | 0.1%-0.3% | 0.3%-0.5% | 0.5%-1% | Meet the imported brands level |
| Self-diagnosis | One-step diagnosis | Multi-step diagnosis | Multi-step diagnosis | “Switch diagnosis” | Better than imported brand |
| Minimum Operating current | 3.4mA | 3.4mA | 3.5mA | 3.8mA | Meet the imported brands level |
| Explosion proof | Ex ia IICT6 | Ex ia IICT6 | Ex ia IICT6 | Ex ia IICT6 | Meet the imported brands level |
| Ex d II CT6 | Ex d II CT6 | Ex d II CT6 | Ex d II CT6 | Meet the imported brands level | |
| Backup function | With | Without | Without | Without | Better than imported brand |
| Smart Positioner Price | Middle | High | High | High | Better Cost Performance |
