OMEGA's TX20B radio telemetry system is ideal for transmitting signals from sensors which are mounted on rotating shafts. The TX20B series miniature transmitters modulate sensor signals from thermocouples, voltage transducers, or strain gage bridge circuits onto a RF carrier and transmit them to a stationary receiver. The RX20B receiver demodulates the signal and converts it into a ±2 voltanalog output. Two analog outputs signals are available simultaneously. A wide band output provides frequency response from dc to 1250 Hz. For maximum stability of the signal a filtered output is also available with a 0-10 Hz band width. TX20B transmitters incorporate a crystal oscillator which is tuned to a specific frequency eliminating the need for tuning by the operator. Transmitter frequencies can be staggered allowing multiple transmitters to be operated in close proximity with no interference. Multi-channel receivers are available. Transmitters are small enough in size to be taped or strapped to the rotating shaft and can be powered by a 9 V battery. For applications where continuous uninterrupted monitoring is necessary an inductively coupled power supply and transmitter are also available. The TX20B operates in a band which does not require an FCC license.
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Option Descriptions
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Input Types and Ranges
Select S1 for Strain gage transmitter with 0.3 mV/V input range S2 for Strain gage transmitter with 1.0 mV/V input range S3 for Strain gage transmitter with 2.0 mV/V input range S4 for Strain gage transmitter with 3.0 mV/V input range E1 for Voltage transmitter with 0.1 V input range E2 for Voltage transmitter with 1.0 V input range E3 for Voltage transmitter with 5.0 V input range E4 for Voltage transmitter with 10.0 V input range J1 for Type J T/C transmitter with 0-200 °F input range J2 for Type J T/C transmitter with 0-400 °F input range J3 for Type J T/C transmitter with 0-800 °F input range J4 for Type J T/C transmitter with 0-1000 °F input range K1 for Type K T/C transmitter with 0-500 °F input range K2 for Type K T/C transmitter with 0-1000 °F input range K3 for Type K T/C transmitter with 0-1500 °F input range K4 for Type K T/C transmitter with 0-2000 °F input range
NOTE: All combinations may not be valid, check spec sheet for valid part numbers.
