PRODUCTS & SOFTWARE

INDUSTRIES

SERVICES & SUPPORT

SALES & PARTNERS

PRODUCTS & SOFTWARE

TopWorx™ DX-Series Valve Controller Model DX PST with HART 7

The TopWorx DX PST switchbox with HART® protocol is a reliable, user-friendly solution for performing Partial Stroke Test and Emergency Shut Down for critical applications. Units provide valuable valve data and diagnostic information, relaying feedback to Industrial Internet of Things (IIoT) systems via digital and analog signals. Expanded options for sensor redundancy up to 4 GO™ Switches and pilot redundancy up to 2 integrated pilots all protected within a single enclosure .Thanks to the integrated PST button, operators can test valves without any additional devices, simplifying maintenance.

Specifications

CertificationsIntrinsically Safe, Explosion/Flame-proof and General Purpose
Environmental RatingsIP66, IP67<br>UL Type 4/4X
Shaft Rotation20° to 90° (Consult Factory for Additional Shaft Rotation Sensing)
Hysteresis0.50%
Repeatability0.50%
Linearity1/4 Turn, 1% of span
Temperature Rangewithout internal solenoids and local PST Switch: -40°C to +80°C (-40°F to +176°F)<br>with internal solenoids: -10°C to +60°C (14°F to +140°F)<br>with local PST Switch: -20°C to +50°C (-4°F to +122°F)
Terminal Connection26 to 14 AWG
Pneumatic Connection1/4" npt (1.06Cv), 1/2" npt (3.7Cv)
Display TypeLiquid Crystal Display (LCD)
Local ControlsPush Buttons
Valve ActionDouble, Direct (DA) & Reverse (RA)
SealsSilicone, Buna
4-20ma/ HART Terminal VoltageMin: 10 VDC<br>Max: 33 VDC
Pilot/SOV 1 &Pilot/SOV 2Min: 22 VDC<br>Max: 26.4 VDC<br>28W
Internal Temperature Sensor Accuracy± 2.5°C
Analog Position0 to 100%
High (H) Alarm22.3mA
Low (L) Alarm< 3.5mA
Multi-Drop Current Draw4.0mA
Resistance100K Ohms