WL 920 Temperature measurement
Description
Different physical processes are used to measure temperatures.
Temperatures can be read off directly on a scale, e.g. by the
expansion of a measuring medium.
In industry, temperatures are often measured electronically. The
advantage of electronic measurement is that further processing or
transmission of signals to remote locations (controllers, external
displays) is easier.
The WL 920 trainer can be used to carry out and compare different
temperature measurement procedures. The trainer includes liquid
thermometers, bimetal thermometers, as well as a thermocouple,a
Pt100 resistance thermometer and an NTC thermistor, each with
different protective sleeves, for electronic temperature
measurement. A psychrometer with two liquid thermometers is used to
measure the relative air humidity.
To compare the different measuring methods, the temperature sensors
being studied are attached to a height-adjustable device above the
experimental tank. A fan ensures almost constant ambient
conditions. A second tank with electronically controlled heater
supplies water temperatures up to approx. 80°C.
The heated water at a specified temperature is fed into the
experimental tank. By lowering the height-adjustable device, the
temperature sensors are immersed in the water and the temperature
measurement begins.
The measured values can be read as analogue or digital values. A
3-channel line recorder can record the measured values of the
electronic temperature sensors continuously over time and thus also
document the different time response. Defined temperature jumps and
steady and transient temperature behaviour can be studied.
Specification
steady and transient temperature measurement with typical
measurement instruments
temperature sensors: liquid thermometer, bimetal thermometer,
Pt100, thermistor (NTC), type K thermocouple
psychrometer for determining the relative air humidity
defined temperature jumps up to 80°C
experimental tank and heating tank with temperature control,
water-filled
both tanks equipped with stirring machine
fan generates constant air temperature above the experimental tank
3-channel line recorder for recording the measured values
Technical data
Heater
output: 2kW at 230V, 1,5kW at 120V
tank capacity: 4L
Temperature controller
PID
Line recorder
3 channels
serial interface
Temperature sensors
liquid thermometer with organic liquid
bimetal thermometer
psychrometer
thermocouple type K
thermistor (NTC)
Pt100
Measuring ranges
temperature: 0…100°C
rel. humidity: 3…96%
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
Dimensions and weight
LxWxH: 1200x700x1550mm
Weight: approx. 185kg
Product Details and Warranty
We supply suitable spare pats according to experiment requirement,
our products take aluminum structure, A4 paper dimension aluminum
and plastic hanging box structure.
We supply 3 years warranty time.
Packaging & Delivery
Package details: plastic film+ plastic foam + plywood box with
pallet, and for equipment dimension less than 1CBM, we supply
plastic film+ plastic foam+ fine carton.
Arrange delivery within 45 days upon receipt of payment.
Please see below photo for detailed package.
Service
We supply supply7*24 hours service, customer design service, OEM
service, buyer label service. With professional engineers team and
sales team, we assure you good product quality.
Certificate
Our products takes ISO9001 product management system.
| No. | Feature Name | Details |
| 1 | Customer design | Yes |
| 2 | Warranty | 1 year, 2 years, 3 years or 5 years according to client
requirements |
| 3 | Package | Plastic film+ carton+ Fine plywood |
| 4 | Products standard | International didactic equipment standard |
| 5 | Application range | Educational equipment for university, college, vocational training
centers |
| 6 | Company philosophy | Supply best quality Chinese products to the worldwide schools. |
| 7 | Self owned brand | Shouldshine, SSEDU, JSS. |
| 8 | Production time | From 10 days to 60 days according to different items |
