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Technical Description
A wide range of temperature measurements can be performed and compared using this unit.
The thermometers and temperature sensors to be investigated are heated to the same temperature in a tank of water. A second heated tank with an electronic control system provides water temperatures up to 80°C. The transient response of the sensors can be examined by quickly immersing them in the second tank.
Digital instruments for measuring temperature, voltage and resistance enable the characteristic curves to be drawn. A 3-channel line recorder can be used to continuously record the measured values from the electrical temperature sensors (thermocouple, thermistor, RTD) and thus to document the different responses.
The trainer can be used for student experiments and is also suitable for demonstrations.
Learning Objectives / Experiments
- temperature measurements with
* psychrometer
* bimetallic
* gas thermometer
* thermocouple
* thermistor
* Pt100
- overview of temperature measurement methods
- function of individual temperature measuring instruments
- response characteristic of sensors
- steady-state and non-steady-state behaviour
- reproducible experiments
Specification
[1] steady-state and non-steady-state temperature measurement with 7 typical instruments
[2] defined temperature steps up to 80°C
[3] 2 tanks: water tank and heated tank with temperature control
[4] both tanks fitted with a stirring machine
[5] fan generates constant air temperature above experimental tank
[6] thermometers: bimetallic and gas; psychrometer
[7] temperature sensors: RTD (Pt100), thermocouple type K, thermistor (NTC)
[8] calibration device: digital voltmeter
[9] 3-channel line recorder
Technical Data
Heater
- power: 2kW
- temperature limit: approx. 80°C
Stirring machine
- speed: 330min-1
Fan
- motor power 29W
-speed: 1.300min-1
Line recorder
- paper speed: 0...600mm/h
Measurement ranges
- thermometer (organic liquid): 0...100°C
- bimetallic thermometer: 0...100°C
- psychrometer: 0...60°C
- thermocouple: -40...1200°C
- thermistor (NTC): 20...55°C
- Pt100: -50...400°C
Dimensions and Weight
LxWxH: 1200x700x1550mm
Weight: approx. 185kg Required for Operation 230V, 50Hz, 1 phase or 120V, 60Hz, 1 phase
Water connection, drain
Scope of Delivery
1 trainer
5 temperature sensors
1 set of accessories (laboratory cables, hoses)
1 manual