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D500 Series Digital Valve Positioners
Brand: Valve Accessories & ControlsThe D500 microprocessor based positioner brings the latest technology, flexibility, and user-friendly features (local push buttons and LCD display) for local operation and calibration of a pneumatic actuator and/or control valve package.
A robust design (NEMA 4X, Ip 65), with excellent air delivery, uses very traditional and proven components to provide very fast, accurate, and consistent control with very low air consumption.
Optional accessories like analog or digital feedback, various switch options, an emergency shutdown module, SIL 2 approvals, fail freeze option and pressure sensors for advanced diagnostics make the D500 a complete positioner package.
Coupled with VAC’s multiple drive adapters and an extensive list of rotary or linear actuator mounting, this combination offers users and distribution channels a lot of flexibility and opportunities.
Features- Reliability - Proven rugged technology, vibration test specified
- Flexibility - Various mounting options, analog or binary feedback alarms, microswitches with universal analog input available
- Diagnostics - Pressure sensor option for advanced diagnostics with partial stroke capability standard
- Performance - Very high resolution, air delivery, precise positioning with 270-degree sensor, SIL2, and intrinsically safe options
- Simple - Push buttons for auto-calibration and configuration, LCD program with standard loop calibrator
- Advanced diagnostics with pressure sensors
- Partial stroke standard
- SIL 2 and intrinsically safe optional
- Excellent air delivery with very low air consumption.
- 25° to 270° rotation
- VAC rotary or linear mounting options
- Seismic vibration-DIN/IEC 60068-3-3 Class III for strongest earthquakes
- Fail-safe standard, Fail Freeze optional
- Stainless housing optional
Specifications
General
- Weight - 5.3 lbs
- NEMA 4X, IP65
- Hardened Epoxy Resin
- Temperature Range: -40° F to 185° F
- Housing - Cast Aluminum Standard (Stainless Optional)
- 25-270° rotation (Rotary and or Linear Applications)
Inputs: Electrical
- Nominal Range - 2-Wire-4-20 mA and or Hart-5 or 7 (Supply 5-30 Vdc)
- Load at 20 mA 9.7 V
- Impedance @ 20 mA 285 Ω
- Fail Safe (Standard) or Fail Freeze (Optional)
- Connections - 1/2” NPT with Cable Gland
Inputs: Pneumatic (Air Supply per DIN/ISO 8573-1)
- Connections: 1/4” NPT
- Supply: 0 - 145 psi
- Air Consumption: < 0.015 scfm
- Delivery - 13 scfm @ 87 psi
Approvals
- Can operate with Natural Gas as the median (must order with GAS approval)
- FM/CSA Intrinsically safe approvals (ATEX-GOST-others) available
- Meets DIN/IEC 60068-3-3 Class III for strong and strongest earthquakes