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General Description
The K-Kontrol Data Relay Unit is a battery powered radio telemetry transceiver (914.5MHz – USA; 869.85MHz – European; 433.92 MHz –
Rest of the World) that processes the signals acquired from four type K-type thermocouples and, on receipt of master command, transmits
the temperature data to a master unit which, via an RS232 serial output, passes the data to a computer for display, analysis and storage.
The unit can serve as a master or a slave. A unit connected to a computer via an RS232 serial cable automatically adopts the role of master
once the DTR line is held HIGH and, at 2 second intervals, sequentially calls for data from the slaves.
The TXR1A units are designed for use with 493K's unique high temperature slip rings and the K-Kord software package.
A photograph of the Model TXR1A is shown below.
The unit is contained in an ABS plastic enclosure 160 x 120 x 90mm.
Power is provided by two 1.5 volt, D size, alkaline batteries retained in a cylindrical battery holder mounted in the base section of the
enclosure.
Access to the thermocouple, RS232 and external power connectors is provided by slots/holes in the sides of the lid.
A power ON/OFF push switch and a power ON light emitting diode (LED) indicator are sited on the top facia of the unit.
The transmit/receive aerial is contained within the enclosure
MCM03022016
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