The ACI Platinum Copper Averaging Series features a copper sensing element with Etched Teon colored lead wires to dierentiate the dierent sensor types

The three-wire “-3W” option should be ordered when using with a 3-Wire temperature transmitter or sensor conguration on your building management system or PLC (Programmable Logic Controller)

The purpose of the 3rd wire is to compensate for external lead wire resistance that will aect your sensor output

ACI recommends the use of 18 AWG lead wires to reduce the external lead wire resistance when using a Platinum RTD style sensor

The sensing element includes a continuous sensing element, which covers the entire length of the copper tube

This produces a better average temperature over the entire cross sectional area of your duct or unit when compared to a single point duct sensor or multi-point averaging sensor

These sensors are hermetically sealed to ensure that moisture and other contaminants won’t aect the reliability of the sensing element

The copper averaging sensor includes a foam pad to seal the duct and dampen vibrations once installed

The sensor length should be determined by the total cross sectional area of your duct

Standard enclosure options include the “-GD” galvanized or “-PB” plastic enclosure with hinged cover

Optional NEMA/IP rated weather proof enclosures and NIST Certicates are available as referenced in the ordering grid

For higher accuracies, see the A/TTM1K (Matched) Averaging transmitter Product Data Sheet.