This document is the Smart-Trak™ With Compact Relay Controller AU23, AV23, AZ23 Series Manual, which is available in three sensing technologies including ultrasonic, vibration, and buoyancy, providing a fail-safe relay control with 0-60 second delay, and an LED indicator for sensors, power and relay status.
This manual provides instructions for the Flowline Smart-Trak™ With Compact Relay Controller series, specifically models AU23, AV23, and AZ23. These devices are designed for automatic tank filling and emptying applications, utilizing adjustable level switch points to control pumps or valves via a latching 16A relay. The system is available in three sensor technologies: ultrasonic vibration, buoyancy, and vibration (tuning fork), housed in a polypropylene enclosure rated NEMA 4X.
| Length | 8" (20cm) to 10' (3m) |
|---|---|
| Supply voltage | 120 / 240 VAC, 50 - 60 Hz |
| Contact rating | 250 VAC, 16A |
| Contact delay | 0 to 60 seconds |
| Process temperature | -40° to 176° F (-40° to 80° C) |
| Enclosure rating | NEMA 4X (IP65) |
| Wetted material | PP (20% glass filled) |
The controller is offered in three sensing technologies: ultrasonic vibration, buoyancy, and vibration (tuning fork).
Design the system so that if power is cut off, the relay de-energizes to a safe state, such as turning off a pump connected to the Normally Open side.
No, the Smart-Trak should not be used within classified hazardous environments.