MULTI-CHANNEL TEMP TRANSMITTERMoore Industries818/894-7111Temperature Concentrator System (TCS) accepts any combination of RTD, T/C, mV and resistance/potentiometer signal inputs, converts them to the HART protocol, and transmits data from the field to the control room on an economical HART digital data link over a twisted-pair wire. All process, status and diagnostic information can then be accessed by a HART-based control system. When used with the optional HMC HART-to-Modbus converter, HMC transmits HART data as a Modbus RTU signal, which interfaces with any Modbus RTU-based PC, PLC or control system. TCS can be set to accept RTD thermocouple, resistance/potentiometer, and millivolt inputs.
RAIL-MOUNT TEMP TRANSMITTERSSiemens Energy and Automation(215) 646-7400 When connected in the 4-20 mA loop, Sitrans TR200 and TR300, designed for rail mounting, need no additional power supply. TR200 is configured using a PC, and TR300 uses a HART interface. Both feature a diagnostics LED that indicates the function status, which quickly detects open or short circuits, so they can be corrected. The temperature transmitters support all standard RTDs and thermocouples, as well as resistance and voltage inputs.
SMART TEMPERATURE SENSORSTurck800/544-7769 Turck TS400 and TS500 temperature sensors are platinum resistance temperature detectors (RTDs). The sensors may be mounted directly or remotely, and sense a temperature range of -50º C to 500 ºC (-50 ºF to 932 ºF). Available process connections include compression fittings, thermowells and tri-clamp fittings. TS400 and TS500 sensors are available with two switch points, an analog current output with one switch point, and an analog voltage output with one switch point. Multiple outputs are programmed via pushbuttons, and do not require regular maintenance calibration. A recessed “enter” key helps prevent unintentionally altering stored values.
SMART HART TEMP TRANSMITTERSABB Instrumentation215/674-6000TTH300 (head-mounted) and TTF300 (field-mounted) temperature transmitters feature user-friendly sensor calibration and innovative backup redundancy for two Platinum 100 resistance thermometers with three-wire connections. Inputs include resistance thermometers and thermocouples, resistance type transmitters and millivolt voltage transmitters. Two inputs may include RTD and thermocouples in combination. Output is a 4-20 mA signal incorporating HART protocol communications fieldbus technology. Measuring accuracy is ±0.1 K for Pt resistance thermometers along with long-term stability of ±0.05% per year. Its large, easy-to-use terminal block with convenient cable guide ensures a secure connection with the sturdy and compact IP 66/67 (NEMA 4X) aluminum or 316L stainless-steel field housing.
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