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Digital Epic D430/D431/D450/D451 Transmitter
Brand: Westlock
Discrete position control and precision non-contact position feedback with digital communication via HART protocol in a simple integrated package.
With options for linear or rotary control valves and remote PST/ESD initiation.
Features- Microprocessor based technology allows digital communication via HART protocol
- Remote and local partial stroke test (PST) and emergency shut down (ESD) initiated remotely via HART signal for safety system applications
- Optional external button to initiate partial stroke test
- Valve position measurement via a non-contact magnetic pick-up eliminates mechanical drive arms or linkages increasing reliability in high cycle applications or where vibration is present
- Highly visible position indicator
- Available with low power Falcon solenoid valve
- Solenoid coils integrated within enclosure
- Choice of factory pre-wired 3 and 4-way Falcon solenoid valves
- Solenoid valves with a choice of Cv ratings and coil voltage
- Models D430 and D431 feature corrosionresistant resin enclosure
- Models D450 and D451 feature heavy duty stainless steel enclosure
Specifications
Brand
Approvals & Certifications
- NEC
Coil Voltage
- 7.2 Vdc
Communication
- HART
Conduit Connection
- 1/2” NPT - Model D431/D450
- 3/4” NPT - Model D431 / D450
- M20 - Model D450
- M25 - Model D450
Enclosure Finish
- Engineered Polyamide Resin - Model D430 / D431
- Stainless Steel with Electro-Polished Finish - Model D450 / D451
Enclosure, Body Material
- Engineered Resin - Model D430 / D431
- Falcon V Valve Body: 316 Stainless Steel
- Falcon V Valve Body: Aluminum
- Falcon V Valve Body: Brass
- Stainless Steel: Model D450 / D451
Environmental Protection
- IP66
- NEMA 4X
- Non-Incendive
Flow Rate
- Falcon Solenoid Valve: 1.4 Cv
- Falcon Solenoid Valve: 4.3 Cv
Humidity
- 10 to 90 % Relative Humidity, Non-Condensing
Linearity
- ± 1 % of Full Scale
Materials of Construction
- Beacon Visual Indicator: Co-Polyester
- Falcon Solenoid Valve, Hardware: Stainless Steel
- Falcon Solenoid Valve: Aluminum
- Falcon Solenoid Valve: Brass
Mounting
- Remote Mounting
Mounting Position
- Any Orientation
NPT Connection
- 1/2” NPT Female - Model D431
- 1/4” NPT Female - Model D430
- 3/4” NPT Female - Model D431
Operating Temperature
- Engineered Resin Enclosures: -23° to 85° C (-10° to 185° F)
- Standard Falcon Valve Operating Temperature: -20° to 85° C (-4° to 185° F)
- Standard Operating Temperature: -40° to 85° C (-40° to 185° F)
Output
- 4-20 mA Proportional to Valve Position
Override
- Locking
- Momentary
Power Supply Effect
- Voltage Effect: ≤ 0.2 % of Full Scale from 10-30 Vdc
Resolution
- ≤ 0.05 % of Full Scale
Reverse Polarity Protection
- Protected Against Reverse Polarity
Span & Zero Adjustments
- Span: 60° to 120°
- Zero: 30 % of Calibration Span
Temperature Effect
- ≤ 0.01 % of Full Scale/°C
Terminal Voltage
- 10-30 V
Turn-On Time
- Startup Stabilization: 0.5 seconds
Update Time
- Output: 25 milliseconds
