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This instrument has now been replaced by the superior milliK Precision Thermometer

The TTI-7 PLUS 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 for money.

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 PLUS supports thirteen thermocouple types, B, C, D, E, J, K, L, N, R, S, T, U, Au/Pt along with 25 and 100 Ohm platinum resistance thermometers.

Data Logging and Statistical Analysis

The TTI-7 PLUS includes an inbuilt 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. The TTI-7 plus now also includes a real time rolling display.


Technical Feature Value
Model TTI-7 PLUS
Temperature Depending on Sensor
Range -200 to 2315°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) readings 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 Compensation – Automatic with internal sensor, or with external Pt100 probe. PRTs Lemo Socket.
Working Temperature 0°C to 40°C rel. humidity 80% max non condensing.
Storage Temperature -20°C to +50°C
Main Supply 100/120/220/240 Volts + 1-% – 13% 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 Scanner option fitted. Scanner cards may be inserted into slots on rear panel, cards for thermocouples and Platinum Resistance Thermometers are available, giving a max. of 10 measuring channels.
Scanner Option Continued Each scanner card has 4 channels



-200°C to 2315°C

The TTI-7 PLUS is a very high accuracy multi purpose digital thermometer for both platinum resistance thermometers and thermocouples.

  • Accepts 25 and 100 Ohm Resistance Thermometers - Conversion to ITS-90 and IEC 751
  • Eliminate unwanted thermal EMFs with current reversal
  • Expandable to have 10 input channels
  • Inbuilt data logger stores up to 4000 measurements
  • Portable - 10 hours use from internal battery

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