The ACI Platinum Duct Series features a stainless steel probe with Etched Teon colored leadwires to dierentiate the dierent sensor types

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

The purpose of the 3rd wire is tocompensate for external lead wire resistance that will aect the accuracy of your sensor output.ACI recommends the use of an 18 AWG lead wires to reduce the external lead wire resistancewhen using a Platinum RTD

The sensors are manufactured using ACI’s proven doubleencapsulation process to eliminate the eects of moisture on the sensors and to increaseresponse times using our high quality, thermally conductive epoxy

The duct style sensor is asingle point sensor designed to be used in smaller duct applications and includes an insulation pad for sealing the duct and dampening vibration.The sensor length should be determined by the width or diameter of your duct, such that the tip of the probe is in the approximate center of theduct

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

On larger ducts, our Rigid or BendableCopper Averaging sensor may oer better coverage based upon the size of your duct system and sensor location

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