Data Sheet A/TTM1K-D-4'-4-BB - ACI Automation Field Components download pdf

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The ACI Transmitter Duct Series features a two-wire, 4 to 20 mA loop powered output signal with an optional 3-Wire voltage output signal available. All transmitters include Zero and Span adjustments for field calibration and are calibrated using NIST Certied Calibration equipment.
ACI recommends the use of an 18 to 22 AWG shielded cable for all temperature transmitter installations to help eliminate the possibility of noise being introduced onto the signal lines. The sensor assemblies are manufactured using colored Etched Teflon lead wires and ACI’s
proven double encapsulation process to eliminate the effects of moisture on the sensors as well as increased response times using our high quality, thermally conductive epoxy. The duct sensors include a foam pad to properly seal the duct and limit vibration once installed.
Optional NEMA/IP rated weather proof enclosures are available as specified on the back of the product data sheet. For best accuracy, ACI recommends the use of the A/TTM Series Matched transmitters with 3 or 5 Point NIST Calibration Certicate, since they include a second calibration
step in which the RTD and transmitter are calibrated together as a system.

Applications: Chilled Water Systems, Hot Water Systems, Boilers, Pumps, Compressors, Chillers, Cooling Towers, Process Control

The ACI Transmitter Duct Series is covered by ACI's Five (5) Year Limited Warranty. The warranty can be found in the front of ACI's
Sensors & Transmitters catalog, as well as on ACI's website, www.workaci.com.