Data Sheet A/1K-3W-HT-BP-NIST - ACI Automation Field Components download pdf

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The ACI High Temperature Bullet Probe Series sensors and transmitters are a single point bullet probe sensor featuring a three wire RTD sensor assembly and a 316 Series stainless steel probe. The three wire sensors can be used with a two wire transmitter by connecting the two (White) colored wires to one of the RTD terminal blocks with the 3rd wire (Red) wire going to the second RTD Terminal block. The purpose of the 3rd wire is to compensate for external lead wire resistance that will aect the accuracy of your sensor output when using with a three wire temperature transmitter or sensor conguration on your Building Management System or PLC (Programmable Logic Controller). ACI recommends the use of 18 AWG lead wires to reduce the external lead wire resistance when using the A/100/1K-3W-HT-BP style Platinum RTD series sensors without temperature transmitter. The operating specications are for both the sensor and transmitter as designated in the specication table. Standard enclosure options include the “-GD” Galvanized or “-BB” Aluminum weather proof enclosure. NIST Certicates are available for all of the congurations listed in the ordering grid on the back of the product data sheet. For best accuracy, ACI recommends the use of the TTM100 or TTM1K Series Matched transmitters with a 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, which will remove most of the sensor error over the calibrated temperature span of the transmitter. Applications: Boilers, Pumps, Compressors, Remote Sensing, Process Control