TopWorx HART 7 Communication Protocol
Description
A HART 7 position transmitter option for the TopWorx D-Series switchbox enables advanced diagnostic and monitoring capabilities for valve integrators and automators. It helps improve operational efficiency and maintenance planning for plants in process industries such as oil and gas, chemical, power, and refining.
The HART 7 position transmitter’s easy-to-use LCD display and navigation buttons permit local 5-point calibration for a more accurate setup on linear applications. Advanced diagnostic capabilities include measurements such as percent valve is open/closed, open and close dwell time, valve transition time—from open to close, and last open/close stroke time.
Specs
| Device Terminal Voltage | 10.0 @ 24 to 39V DC |
|---|---|
| Linearity (1/4 Turn) | 1% of span |
| Hysteresis | 0.50% |
| Repeatability | |
| Shaft Rotation | 20 to180-deg. |
| Operating Temperature Limits | -40 to 176°F (-40 to 80°C) |
| Device Resistance and Capacitance | Rx: 27.12k ohms | Cx: 6.11nF @950 Hz |
| High (H) Alarm NE-43 Current | 22.3mA |
| Low (L) Alarm NE-43 | < 3.5mA |
| Multi-Drop Current Draw | 4.0mA |
| Lift-Off Voltage | 10.0V |