Precision Multichannel Thermometer System
– Twelve channel temperature measurement
– High precision, stability and repeatability
– Internal reference resistors
– PC software for system control and data acquisition
– Simple to configure and use

Typical applications
– Climatic chamber validation
– Calibration Systems
– Temperature Calibration

Multi-Channel Reference Thermometer
The T12 is a highly precise and stable platinum resistance thermometer (PRT) based multichannel temperature measurement system. Using a custom designed high quality measurement circuit, 24 bit analog to digital converters and multiplexor sampling; the T12 provides 12 channels of low uncertainty temperature data for validation and calibration engineers.

Using one of three user selectable currents, the T12 repeatedly scans all 12 channels. Employing a full reversal current source, the T12 eliminates polarity sensitive errors normally inherent in DC measuring techniques. Accuracy is further enhanced by referencing all measurements to high stability internal reference resistors.

The supplied software allows each channel to be individually programmed with ITS-90 or Callendar-Van Dusen coefficients for direct conversion of resistance measurements to temperature. The T12 connects to a PC over the RS-232 interface.

Internal Reference Resistors
Measurements are compensated against drift using two high precision, high stability internal reference resistors. During each sampling sequence, the T12 measures a high and low range reference resistor to define the measuring range and accurately determine the unknown values of each of the 12 channels. The result of this specific reference resistor measurement technique is a significant reduction in overall uncertainty.

Fast Sampling Rates
For applications where fast sampling rates are needed, the T12 is the ideal choice. The system can be configured to sample all 12 channels in under five seconds. When needed, faster sampling of individual input channels can be programmed.

- Intelligent Data Acquisition
- Probe Choice
- Climatic Chamber Validation

Temperature measurement range -200...800 °C (PRT Pt-100)
Power Requirements 110-230 V, 50/60 Hz, 0.3 A

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