Ivan  Franko  National  University  of  Lviv
1, Universytetska Str.,
79000, Lviv,Ukraine
Tel.: +38-032-2727040  +38-032-2726688
Fax.: + 38-032-2971668
Web: www.lnu.edu.ua
 

DIGITAL  PORTABLE  THERMOMETERS, TP SERIES

 

 Thermometers are designed for a prompt (express) temperature measurement in different environments in industrial, food and agricultural production, as well as in other industries, where it is necessary to promptly measure temperature promptly and with high accuracy. Devices made to order are completed with zonds of a various length and diameter. Depending on the function thermometers are made in normal and explosion-proof construction with explosion protection marking 1ÅõsibIIAT3 and may be used in explosible areas indoors and outdoors. All thermometers are completed with a charge cable which is connected through disconnecting switch in place of the measuring probe. The charge device is built in a thermometer and operates on mains power supply of 220 V. The highlighting of all dots on a display at pressing the measuring button signalizes the necessity of recharging the accumulator supply.

TECHNICAL DATA AND CHARACTERISTICS

• Temperature measurement range (to order)……from -1800Ñ to +2000Ñ
• Legitimate value of basic error (to order)………from  0,1 to 0,50Ñ
• Index of thermal inertia depending on probe construction…from 3 to 7 sec
• Operating time of thermometer in the mode of measuring at fully charged accumulator with the capacity 0,5 ampere/hour equals 60 hours
• Consumable power at nominal voltage 2,4 V……….~ 20 mWt
• Mass of thermometer…………………………….. ~ 0,25 kg
• Sensor of thermometer is located on the end of air-tight probe made of thin-walled stainless steel permitted for the contact with food products.
Regular service conditions in climatic zones with moderate and cold climate as well as with conventionally clear type of atmosphere:
• lower (minimum) temperature value – 100Ñ
• upper (maximum) temperature value + 400Ñ
• the guarantee for thermometer operation is valid for 12 months since the starting day of operation
• the guarantee period for keeping the thermometer without accumulators is valid for three years since the date of production
• resolution of the thermometer scale is 0,10Ñ.

THERMOMETER TP- 2Í

It is developed for exploitation at the technological pump stations (machine halls) for pumping-over the oil and oil products as well as in pipelines on a stream; in technological chambers of control; in reservoirs for storing oil and oil products; in the chemical laboratories of oil-transfer stations and petroleum storage depots. The device can be also used in other industries. It is made in explosion-proof implementation.

THERMOMETER TP- 2C

It is designed for application in commu¬nications of heating main, mine vulcanizers of rubber-ropes conveyor ribbons and others. It is made on the order in normal one and explosion-proof versions.

THERMOMETER TP-  2F

It is designed for application in food, processing and sugar industry for temperature measurement in bins with sugar raw material, various solutions, liquids, pastes, loose materials, meat-products and others. It is completed with a probe of length from 0,1 to 1,5 m and diameter from 3 to 8 mm.
The design is proofed by patent of Ukraine No 23648A.
Author: Dr. Anatoliy Lenovenko, Faculty of Electronics, òåë.+38-032-2797763, Ivan Franko National University of Lviv.

Contact person:
Bogdan Kotur
Vice-rector for Scientific Research
Prof., Doctor of Science
Tel.: +38-032-2727040
Fax.: +38-032-2616903
E-mail: ndch@franko.lviv.ua