temperature: metal Block (Drywell) baths & blackbody furnaces for calibrating Thermocouples, PRT's & InfRared Thermometers

A wide range of temperature reference metal drywell block baths for calibrating platinum resistance(PRT'S) thermometers & thermocouple probes against a reference standard digital thermometer, for either " on site" use or in a temperature calibration laboratory.

Blackbody calibrating furnaces for calibrating or checking hand held infrared digital thermometers.

We now offer temperature calibrating baths from -40C to 1200C using different models spanning different temperature ranges, together with a  broad selection of block inserts to meet your temperature probe diameter requirements.

There are some temperature calibrating baths utilising the same block insert such as the Tecal 140 & Tecal 145 models. Please contact us by phone 01767 692692 or using the contact us link, to discuss your particular temperature calibrating requirements or request a product data sheet.

We look forward to hearing from you soon.

In order to beat the credit crunch we are pleased to be able to make your budgets stretch further:

Order an ASL, Eurolec or Techne bath & get 15% off the cost of a Dostmann P700 series thermometer & Probe when ordered at the same time.

Thermometer Calibrating Drywell Block Baths and Infrared Blackbody Calibrators
TechneTecal 140F series Metal Block Thermometer Calibrating Temperature reference source.   Temperature Range: -20 to 140C   There are a wide range of inserts to choose from & also customised inserts can be supplied.	more info
TechneTecal 425F series Metal Block Thermometer Calibrating Temperature reference source. Temperature Range: Ambient +20 to 425C N.B. Same insert fits this & the 140F bath	more info
Techne Tecal 650F series Metal Block Thermometer Calibrating Temperature reference source. Temperature Range: Ambient + 25 to 650C	more info
The Techne Tecal 700X Metal Block Thermometer Calibrating Temperature reference source. Temperature Range: Ambient +25C to 700°C. This unit gives market leading stability & accuracies up to & above the Aluminium freeze point (660.3230°C) Special high quality control sensor capable of withstanding the extra temperature up to 700°C. Supplied with software & USB cable 230V & 120V versions available . * New version available with removable inserts!	more info
The Techne Tecal 1200S Metal Block Thermometer Calibrating Temperature Reference source. Designed to provide very accurate & repeatable thermal calibration for a wide variety of thermocouples & other temperature sensors in industries such as glass manufacture, power generation, automotive & material processing. Temperature Range: +150°C to 1200°C   This rugged, economically priced portable thermocouple temperature calibrating furnace is supplied with a NIST traceable certificate or can additionally be supplied with a UKAS certification. The unit provides excellent stabilities to within ±0.1°C & has display accuracy of better than ±3°C between +300 °C & 1200°C.	more info
ASL B Series Metal Block Temperature Calibrators Temperature Range: B140: -25°C to +140°C B700: +50°C to +700°C   Dual mains voltage 110V/240VAC selectable.	more info
New Eurolec CS173, 174, 175 series combined drywell & blackbody thermometer calibrating temperature reference. Thermometer calibrating reference temperature source, freely adjustable from -40°C below ambient to + 200°C (0.1/.01°C resolution ) featuring 6 probe holes ( different diameters ) & a blackbody aperture for infrared thermometer calibration.   Features RS232 output & PAC (precision accuracy check) function. USB output option.	more info
Dostmann BC 300 low cost block calibrator with fixed insert for calibrating temperature probes & digital thermometers Temperature Range: +33...+300C Stability +- 0.5C Hole sizes: 2x 3.5mm, 1x 4.3mm, 1x 1.5mm, 1x 6.6mm. Hole depth 90mm. 230VAC.	more info
Dostmann BB500 Blackbody Infrared Thermometer Calibrating Furnace. • Calibrating of infrared thermometers. • 57mm diameter blackbody calibrating    aperture • Emissivity set at 0.95 • Temperature Range:+50°C...+500°C • Portable Lightweight Construction	more info

Liquid Temperature Calibrating  Baths here

Important points to consideration when selecting a temperature calibrating metal block bath for calibration by comparison:

A temperature probe is calibrated in a metal block (drywell) bath by comparison with a known reference standard thermometer. For accurate calibration, the two thermometers must be in thermal equilibrium which requires that they are as close as possible over their full length & ideally of similar thermal mass & response time.

Having both thermometers close together in the same insert is generally accepted as far more accurate than relying on a  block's control probe, which may be located away from the thermo well.

Some block designs rely on a built-in probe as the reference and although a display offset is used, it can only be correct for one temperature.

The separate reference thermometer, with no limitations of being built-in, is a much better option as it is placed close to the thermometers probe under calibration & can be easily calibrated & re-calibrated over a wide temperature range to traceable international standards.

So, instead of having to send the calibration bath away for annual re-calibration, you need only to send your external reference thermometer away for re-calibration.

Details on reference thermometers can be found here

Please contact us to discuss your measurement needs.