定位器
數位閥控制器 ND7000
| 系列 | 外殼材質 | 空氣連接口 | 供給壓力 (MPa) | 供給電力 |
|---|---|---|---|---|
| ND7100 | 陽極氧化鋁合金 及聚合物複合材 | G1/4 | 0.14 ～ 0.8 | 4 ～ 20 mA |
| ND7200 | 陽極氧化鋁合金 及強化玻璃 | NPT1/4 | 0.14 ～ 0.8 | 4 ～ 20 mA |
產品特點
・Benchmark control performance on rotary and linear valves
・Reliable and robust design
・The rugged cover protects the unit from environmental hazards and external abuse
・Easy commissioning and operation
・Safety; SIL 2 certified by TÜV (Acc. to IEC 61508)
・Language selection: English, German and French
・Local/remote operation
・Remote mounting (option)
・Equipped with self-diagnostics
Self-diagnostics/Deviation trend/Counters/Extended off-line tests
・Linearisation of the valve flow characteristics
・Excellent dynamic and static control
performance
・Fast response to control signal change
・Accurate internal measurements
・Can be used for linear and rotary valves,
double and single acting actuators
・Simple fast calibration and configuration
using Local User Interface (LUI)
using DTM/EDD in a remote location
using DCS asset management tools
・Low power consumption enables installation
to all common control systems
・Mounted on single and double acting actuators
・Both rotary and linear valves
・Ability to attach options to electronics and mechanics later
・One-point calibration feature enables mounting without disturbing the process
・The ND7000 can be freely interfaced with
software
and hardware from a variety
of manufacturers.
Using this open architecture allows the
ND7000 to be integrated with other field
devices to give higher controllability.
・FDT and EDD based multi-vendor support
configuration
・Support files for ND7000 are available at the
following website: www.neles.com/valves
・Designed to operate in harsh environmental
conditions
・Rugged modular design
・Excellent temperature characteristics
・Vibration and impact tolerant
・IP66 enclosure
・Protected against humidity
・Wear resistant and sealed components
・Contact less position measurement
The ND7000 is a 4 to 20 mA powered microcontroller- based digital valve controller.
The device contains a Local User Interface (LUI) enabling local configuration.
The powerful 32-bit microcontroller controls the valve position.
Self-diagnostics guarantees that all measurements operate correctly.
ND7000 diagnostics includes four Offline Tests.
The test results can be compared with earlier tests.
