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TTI 7 PRT/RTD and Thermocouple Thermometer
Isotech, TTI 7 Digital Thermometer
Base Price: $5,040.00

Product Code: TTI7

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High Accuracy Digital Thermometer TTI-7

PRT/RTD Digital Thermocouple Thermometer

The TTI-7 is a very high accuracy multi purpose digital thermometer for both platinum resistance thermometers and thermocouples. Laboratory users will welcome the features to eliminate Thermal EMF Errors and Self Heating Errors along with provision to store the calibration data of up to 20 PRT probes. The rugged aluminum case, internal battery pack and integrated power supply ensure reliable portable field use for demanding measurement applications all at great value.

Dual Channel Input allows a probe on Channel B to be calibrated against a standard on Channel A - directly compare any combination of PRT and Thermocouple. The TTI-7 supports ten thermocouple Types, B,C, D, E, J, K, N, R, S and T and Pt100 thermometers. Connect up to 16 sensors via the optional switchboxes, Model 954 and 958.

Data Logging and Statistical Analysis The TTI-7 includes an built-in data logger internally storing up to 4,000 date and time stamped readings. Recall the data from the front panel or send to a PC or Printer via the PC interface which is included as standard. The powerful math function enables statistical analysis of the captured data, mean, max, min, peak and standard deviation.

Usability Ease of use, password protected digital calibration and a large clear backlit LCD graphics panel ensure the TTI-7 is a delight to use. Resistance thermometer connections are via LEMO connectors. Both sub miniature thermocouple and standard thermocouple plugs are accepted directly into the thermocouple inputs with no need for further adapters.

Why the TTI-7? The TTI-7 has the features you need for high accuracy temperature measurement. With resistance thermometers used at high temperatures unwanted thermal EMFs are generated, the TTI-7 can take two measurements switching the polarity then computing the average to eliminate this error source. Many other instruments lack the ability to eliminate thermal EMFs. The thermal EMF error can be greater than the quoted accuracy of an instrument, if you need small measurement uncertainty for high-temperature PRT work you need this feature.

The TTI-7 Uncertainty of Measurement (1 Year) in the range -100°C to 500°C is 0.01°C. Watch for specifications that quote the value at -100°C and then get larger as the temperature rises. The TTI-7 is optimized over the most frequently used temperature range. For thermocouple measurements the automatic CJC is far better than 0.1°C at 20°C. Great design care was taken, both thermocouple inputs are measured with separate Pt100 sensors. This approach gives outstanding CJC performance.
Model TTI-7 PLUS
Temperature Depending on Sensor
Range -200 to 2314°C
Indicator Units °C, °F, K
Display LCD Graphics Panel, 240 x 64 Dot with LED backlight contrast control via keyboard
Maths Display Min / Max, Peak to Peak and Standard Deviation
PC Interface RS232 and Software Included
Data Logging Includes a data logging function, enabling up to 4000 single channel (2000) dual channel) reading to be stored together with a date and time stamp.

The stored values can be recalled to the instrument display, downloaded to a PC file or printer.
Inputs Thermocouples via sub miniature and standard connectors. Reference Junction Cpmpensation - Automatic with internal sensor, or with external Pt100 probe. PRTs Lemo Socket.
Working Temperature 0°C to 40°C rel. humidity
80% mac non condensing
Storage Temp. -20°C to +50°C
Main Supply 100/120/220/240 Volts + 10% -12% 47 to 63Hz max. 40VA
Dimensions Height 110mm
Width 219mm
Depth 315mm
Weight 8kg
battery Sealed lead acid, rechargeable cell giving approximately 10 hours continuous operation. Internal battery charger.
Scanner Option With the scanner option fitted, scanner cards may be inserted into slots on the rear panel, cards for thermocouples and Platinum Resistance Thermometers are available, giving a maximum of 10 measuring channels. Each scanner card has 4 channels and up to 2 cards may be fitted, either thermocouple or PRT in any combination.

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