ASL202 Fundamentals of temperature measurement Teaching Equipment Thermal Didactic Equipment
1. Description
The ASL202 experimental setup covers the full range of temperature measurement methods. The well temperature is measured by the most widely used in automation applications but the conventional thermometer types are still widely used in many areas. As a non-electrical measuring method, such as gas- and liquid-filled thermometers and bimetallic thermometers, all typical electric measuring methods are covered in the experiments. The electric measured temperatures are displayed directly on programmable digital displays. A temperature-proportionate output voltage signal (1…10V) is accessible from lab jacks, enabling temperature characteristics to be recorded with, for example, a plotter. For measuring the relative air humidity a psychrometer with two thermometers is available, one of the thermometers measures the dry bulb. Bulb thermometer is covered in a wSTcotton cloth and measures the evaporative cooling. Temperature difference allows the relative air humidity to be determined.
A digital multimeter with precision resistors is used to calibrate the electrical measuring devices. Various heat sources or storage units (immersion heater, vacuum flask and laboratory heater) permit relevant temperature ranges to be achieved for the sensors being tested. , cables, temperature measuring strips and immersion heater.
2. Technical details
Specification
Experiments in the fundamentals of temperature measurement with 7 typical measuring devices
Various heat sources or storage units: laboratory heater, immersion heater, vacuum flask
Calibration units: precision resistors and digital multimeter
Liquid, bimetallic and gas pressure thermometers
Temperature sensors: Pt100, thermocouple type K, thermistor (NTC)
Various temperature measuring strips
Psychrometer for humidity measurement
Tool case for sensors, cables, measuring strips and immersion heater
Technical data
Immersion heater
Power output: 300W
Adjustment of power feed via power-regulated socket
Laboratory heater with thermostat
Power output: 450W
Max. temperature: 425°C
Vacuum flask: 1L
Measuring ranges
Resistance temperature detector Pt100: 0…100°C
Thermocouple type K: 0…1000°C
Thermistor (NTC): 20…55°C
Liquid thermometer: -10…250°C
Bimetallic, gas pressure thermometer: 0…200°C
Temperature measuring strips: 29…290°C
Precision resistors: 10 Ω, 100 Ω, 1000 Ω
Psychrometer
2x temperature: 0…60°C
Rel. humidity: 3…96%
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
UL/CSA optional
