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  Temperature and Humidity Measurement and Control

Datasheets to download

Temperature

and

Humidity

Measurement

and

Control

Thermal Imaging

Wahl offers the lowest cost high performance thermal imaging camera on the market. Ergonomically designed, this compact instrument features a 160 X 120 detector array for high resolution measurement. An affordable and easy to use diagnostic tool, images can be easily downloaded to a PC with the supplied SD card reader for post analysis.

Infra Red Measurement

All solid objects emit infrared energy above absolute zero. The amount of energy emitted is proportional to the body or target temperature. Wahl's Heat Spy directs this energy by means of fixed focus optics, into a sensitive detector which is amplified and processed by the computer into temperature readings. It is fast because it collects IR energy at the speed of light and the detector has a very low mass. The time constant is 0.1 second, about 10 times faster than conventional contact methods. Some Heat Spys offer an analogue output option for recording.

Digital Thermometers

Digistem Thermometer and Transmitter systems provide digital accuracy and reliability of temperature measurements in rugged industrial environments. A wide range of stems and remote interface connections accommodate most installation requirements.

Jumo offers a lower cost alternative for less severe applications.

Liquid Filled Thermometers

Palmer industrial thermometers set industrial standards for accuracy, quality and rugged operation. These classic thermometers are designed and constructed for long term industrial service.

Dial Thermometers

Bestobell Aquatronix offers an exceptionally complete range of thermometers by combining the capabilities of two leading manufacturers.

Capabilities include simple low cost industrial models, remote indicating systems, sanitary service, high performance rugged models for severe service, etc.

Portable Temperature Measurement

Wahl manufactures a complete range of portable temperature probes and meters to suit all requirements. Thermistor, RTD or thermocouple sensing ensures the right price, range and sensitivity to suit any requirement.

Jumo enhances the offering with data logging capabilities.

RTD Sensors

The variation of electrical resistance of metals with temperature is often employed for the electrical measurement of temperature. Since the electrical resistance increases with increasing temperature it is referred to as positive temperature coefficient or PTC.

In order to employ this effect for temperature measurement, the electrical resistance of the metal must vary in a reproducible manner depending on temperature. The characteristics of the metal must not change during operation as this would introduce measurement errors. The temperature coefficient should be as independent as possible of temperature, pressure and chemical effects.

Electrical temperature sensors have become indispensable components in modern automation. As a result of the rapid expansion of automation during recent years, they have become firmly established in industrial engineering.

Thermocouples

The effect responsible for the action of thermocouples is the Seeback effect. If a temperature difference exists along a wire, this will cause a displacement of electrical charge. The amount of electrical charge displacement depends on the electrical characteristics of the chosen material. If two wires of different materials are joined at one point and then subjected to a temperature, then a voltage will be generated between the two wires. This voltage depends on the temperature difference along the two wires.

Thin Film temperature Sensors

Thin film temperature sensors combine the favorable properties of a platinum sensor, such as long term stability, reproducibility, and wide temperature measurement range, with the advantages of large scale production. Thanks to the small dimensions and low mass, very fast response times are achieved. In addition, they can also achieve high nominal values in very small dimensions, compared with glass and ceramic temperature sensors. 

Temperature Sensor Accessories

A complete compliment of mounting and connection accessories are available to complete the package.

Temperature Transmitters

Temperature transmitters facilitate ease of integration into control circuits. Transmitters convert the RTD or Thermocouple measurement in to a standard analogue signal which can be transmitted significant distances without interfering with the measurement. HART programability is an available option.

Temperature Recorders and Data Loggers

Together with its PC software components, this paperless recorder provides a closed system for the electronic acquisition, storage and archiving of process data that fulfills the requirements of FDA 21 CRF Part 11. The presentation is a 5.7" color screen on which the data can be displayed in different formats (numbers, diagrams, bar graph, etc.). Measurement data is electronically stored and available both locally or on a PC.

Tiny Tag Data Loggers are compact, battery powered units. The range of applications include temperature, humidity, mV, mA, volts, pulses, shock and vibration monitoring and recording. Tinytag Explorer software allows for simple configuration of the logger and easy manipulation of the data.

Temperature Controllers - Programmable

The dTRON series of controllers includes 4 freely programmable instruments in different DIN formats for controlling temperature, pressure and other process variables. Th