TT3B digital contact thermometer
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Tamson Instruments Specification sheet Digital Contact Thermometer TT3B IEC 751 – ITS 90 – ASTM E644 – ASTM E1137 – ASTM E2877 – ASTM D8278 Drift annual Dimensions (lxhxw) 215 (upper part 100 * Ø 6, bottom part 115 * Ø 3) 500 hr sample rate 60s Probe material Weight 0.001°C resolution Fast response (T63 < 3 seconds) 2 line LC Display + backlight Up to ± 0.02°C precision °C / °F selectable ITS 90, ASTM E2877 Class A Delivered with 5 calibration points General This thermometer is referred to as a Resistive Contact Thermometer (RCT) or Resistive Thermometer Device (RTD). The TT3B thermometer uses a six points ITS 90 calibration. The display provides a three decimal reading (0.001°C) and an accuracy of ±0.02°C over the full scale. The thermometer has a thin stainless steel probe which ensures a very fast temperature response. The probe has low thermal mass which prevents temperature changes slowing down thus not influencing the measurement. This prevents significant measurement error caused by a slow measurement response. Construction The thermometer consists of a stainless steel PT100 probe, a small electronic circuit board which is placed in a plastic (HIPS) housing. The PT100 probe is thermally insulated from this housing using a PTFE ring. The electronics are powered via USB cable. The probe is designed to accommodate a wide range of voltages and frequencies (85-260V/50~60Hz). Calibration The probe is factory calibrated and a calibration certificate comes standard with the thermometer and is traceable to an ISO 17025 certified laboratory. The calibration certificate offers at least 5 calibration points over the full range. USB The thermometer can be connected to a “USB – A” connector to read out the logged sessions. Free software (TamCom) is available from the website. The battery is powered via a 9V adapter and connects to a standard 5.1 mm power connector. Software A free software package is supplied on our web site providing the handling of the logged data. The measured temperature can be stored as Vector image, Bitmap or as Comma Separated Value (CSV). These CSV files can be read by MS Excel for further analysis. The software is easy to use and can be installed and operated on all Microsoft platforms. Standards and regulation The thermometer meets the following standards and regulations: CE, IEC 751, ITS 90, ASTM E644, ASTM E1137, ASTM E2877 and ASTM D8278. For calibration, please see ASTM E563, ASTM E644 and ASTM E1750.

Tamson Instruments Specification sheet Digital Contact Thermometer TT3B IEC 751 – ITS 90 – ASTM E644 – ASTM E1137 – ASTM E2877 – ASTM D8278 Standard included with TT3B Thermometer Part Number Works certificate with test points. This certificate is standard included with the delivery. Carrying case Temperature probe Cable length 1050mm Necessary Accessory Part Number Adapter to insert an TT3B thermometer in a Tamson bath or 12.5 mm thermometer opening.