Fisher 4320 Wireless Position Monitor

The Fisher 4320 wireless position monitor is a non-contacting wireless position transmitter and limit switch. It is a rugged measurement device that provides a precise wireless feedback signal to indicate equipment position with a percent (%) of span plus on/off indication. The 4320 can be used to monitor equipment such as valves, sliding-stem regulators, displacement and float level sensors, and relief valves.

Features and Benefits

• Reliable Wireless— The WirelessHART self-organizing mesh network provides the high level of communication reliability required in process control.
• Minimized Maintenance—The patented sensing design provides more accurate monitoring and eliminates physical wear-out common in traditional limit switches and position transmitters. This results in less frequent maintenance, repair, and re-calibration. The standard version of this device uses a power module with expected module life meeting typical maintenance intervals.
• Ease of Implementation—No conduit easements or permits are required, thus saving time, costs, and effort in documenting cable runs and associated design reviews. Because there is no wiring, implementation times are shortened for device installation, setup, and commissioning. Typically the reduction is from months to hours.
• Rugged Construction—The housing is made from engineered resin, making it a good solution for most locations, including corrosive areas.
• Diagnostics—Predefined device, network, and system diagnostics provide details on the health of the device and its ability to communicate. Device diagnostics include whether the device calibration has been completed and power module health. The number of completed cycles is measured for the monitored equipment.