Fundamentals of temperature measurement Teaching Equipment Thermal Didactic Equipment

SL202 Fundamentals of temperature measurement Teaching Equipment Thermal Didactic Equipment

1. Description

The SL202 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