RTD Input Two Wire Transmitter Model TW303
The TW303 is a low-cost, reliable, RTD input, 2-Wire transmitter for field or panel mounting in various industrial housings and enclosures. It provides a DC output current proportional to an RTD input signal.
Linearization for platinum RTD inputs, low-drift chopper-stabilized amplifiers, and filtering and conditioning to reduce susceptibility to transients and noisy operations provide accurate, trouble-free operation. Optional conformal coating of the electronic components makes the TW303 extremely reliable and resistant to the corrosion, moisture and fungus associated with many industrial environments.
The module utilizes a single constant current source to excite the RTD. An accurate and stable leadwire compensation circuit uses the third lead of the 3-Wire RTD to compensate for the RTD lead resistance. The output ZERO and SPAN controls are accessible through the top of the case. Terminations are made to screw terminal connectors on the top of the case.
Remote temperature data acquisition.
The TW303 can be mounted in a connection head (TSH-A6L) or on a flat surface using the two 5/32 inch holes provided. The 17/64 inch center hole allows clearance for a 1/4 inch diameter temperature probe.