Radix electrosystems pvt ltd offers a 2-wire, headmounted temperature transmitter tx 100. This accepts at pt-100, 3-wire rtd input and generates a 4 to 20 ma output signal with transfer accuracy of â±0.1%, and a temperature co-efficient of â±0.01%/c over the range 0 to 70c. Available in three ranges covering -100c to +600c and have a wide span adjustment range of 3:1, allowing the same unit to be used for a variety of ranges. The 2-wire loop can be powered by a supply of 12 to 36 v dc, and permits a load of 600 ohms at 24 v dc. A separate supply is not required for the tx 100, housed in a sealed metal enclosure of 44.5 mm dia suitable for mounting in a standard rtd or thermocouple head. A thermocouple version and a din rail version are also available.
