Thermo‐Flo™ With Compact Junction Box AT17, AT18, AG17 & AG18 Series Manual is a flow switch produced by Flowline Inc. It can be used to detect liquid and gas flow, and has features such as corrosion resistance and anti-overpressure.
The document provides a user guide for the Thermo-Flo™ with Compact Junction Box series (AT17, AT18, AG17, AG18) manufactured by Flowline. These thermal dispersion flow switches are designed to detect low or no-flow conditions in relatively clean, non-corrosive media such as water and acetic acid. The manual details the specific models available for short pipe/ducting applications (½” to 1½”) and long configurations (2” and up), covering both liquid and gas sensor types.
| Supply voltage | 14 to 36 VDC |
|---|---|
| Contact rating | 60 VA @ 1A maximum |
| Set point range (Liquid) | .04 to 3 fps |
| Set point range (Gas) | 1 to 90 fps |
| Enclosure rating | NEMA 4X (IP65) |
The factory set point for the AT1_ series liquid flow switch is .2 fps (.06 mps).
The cable length may be extended up to a maximum of 1000 feet using shielded four conductor cable.