TR1

8 Configurable Channels of Either RTD Measurement or Thermocouple

The TR1 provides 8 channels which can be individually programmed as a Thermocouple (TC) or a Resistance Temperature Detector (RTD) measurement interface. When configured as a TC, the channel can interface with virtually all thermocouple-type NIST temperature ranges. When configured as an RTD, the channel can interface to two, three and four-wire platinum RTD sensor configurations.

The TR1 channels are individually configurable for up to 8 isolated TC or low-voltage range A/D measurement channels. Configuration programmability provides interfaces for industry standard NIST thermocouple types (J, K, T, E, N, B, R, and S).

The TR1 channels are individually configurable for up to 8 isolated RTD measurement channels. Each channel is configurable for use with 4-wire, 3-wire or 2-wire connections to the RTD sensors. All RTD channels provide measurement results in Single Precision Floating Point Value (IEEE-754) format.

Features

• Thermocouple Measurement: Interfaces with most standard NIST thermocouple types (J, K, T, E, N, B, R, and S), Self-powered, Large temperature range; up to 2300° C, Accuracy up to ±0.2° C (thermocouple type dependent), Thermo-block compensation option P/N ACC-ISO-THERM-BLK2 (If accessory used, channel 8 is automatically allocated as an RTD interface for the thermo-block compensation temperature measurement)
• RTD Measurement: Higher accuracy and repeatability as compared with thermocouples in applications below 600 °C, Two, three or four-wire mode, Single Precision Floating Point Value (IEEE-754) format, Open sensor connections are detected and reported, 1 mA, 500 µA & 250 µA excitation sources for Pt100, Pt500 & Pt1000 ranges
• Independently Programmable: Up to 8 RTD channels, Up to 8 Thermocouple channels
• Independent Mode Select: Configures Thermocouple or RTD
• Programmable Sample Rate: Sets the sampling rate of the A/D
• Offset Temperature: Provides ability to null for any system induced measurement errors