TEMPERATURE CONTROLLERS – TYPES OF CONTROLLERS AND WHAT THEY ARE USED FOR
17 January 2020
Several levels of laboratory instruments are broadly categorized under the term temperature controls. Temperature controllers are among the most common forms of laboratory instrumentation. Their primary function is to monitor the thermal conditions of samples and to maintain levels within pre-defined or dynamic temperature parameters. This process often requires integration with multiple forms of equipment’s such as thermocouple sensors that attach a temperature controller to an external heating or cooling element.
BASIC Temperature Controllers
Basic temperature controllers are suitable to a broad range of applications, reducing the necessity for experiment micro-management. However, they are not typically recommended for temperature critical processes. They introduce a level of automation to the temperature control process without exorbitantly increasing the cost of devices.
These instruments are equipped with thermocouple inputs to enable automatic temperature regulation to pre-determined parameters. The immediate advantage of these controllers is the accurate acquisition of thermal data as opposed to a calculated measurement based on input voltage.
MANUAL Temperature Controllers
While manual temperature controllers are rarely suitable for applications where minute degrees of accuracy for multiple processes are concerned, the cost efficiency of
manual thermal controls are second to none.
A manual temperature control is usually compact and robust, boasting a comparatively small footprint to more advanced controls. Resistive load samples are commonly measured using manual temperature controllers, due to the easy regulation of input voltages using a simple interface of dials. The heat of the sample is directly correlative to the input voltages, allowing researchers to control temperatures accordingly.
PRECISION Temperature Controllers
Precision controls set the benchmark for modern temperature controllers, providing unparalleled levels of accuracy and simple usability. Naturally, they are also the most expensive option.
The controls offer ultimate control accuracy due to user-friendly digital displays and sensitive thermal sensors capable of monitoring temperatures to within +/-1.0°C. These feature auto-displays of temperature setpoints and processes to enable automated temperature control with exceptional degrees of precision.
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