Dec 13, 2006 -- The new JOFRA ATC-125 ultra cooler from AMETEK Calibration
Instruments is the world's first dry-block calibrator capable not
only of reaching -90°C but to have a temperature range of 215°C (-90
to 125°C). Featuring patent-applied for Free Piston Stirring Cooler
(FPSC) technology for cooling, together with a special heating
element, the ATC-125 offers high accuracy and excellent stability.
Most importantly, its extremely fast heating and cooling makes a 5
point calibration up to 5 times quicker than with an equivalent
liquid bath. It can be used equally as easily in a laboratory or
factory environment.
Ideally suited to calibration applications in the pharmaceutical,
food, food ingredients, hospital and marine industries, the ATC-125
can be used to perform fully automatic calibration routines without
the need for a PC. However the unit is also fully compatible with PC
operation and is supplied complete with JOFRACAL calibration software.
The patent-applied for FPSC is a Stirling heat pump in a lightweight
(290 g) compact unit that is up to 6 times more efficient than more
commonly used Peltier coolers. It uses a small amount of helium gas
as the heat transport medium instead of conventional refrigerants
such as CFCs, HFCs and Freon, making it environmentally friendly.
Since it is a dry block calibrator, no expensive or hazardous
(flammable) liquids are used which may require special ventilation.
In addition, the entire temperature range can be reached without
liquid changes.
In addition to the revolutionary new cooling technology, the ATC-125
utilises the well-proven ATC Series dual-zone control technology to
ensure precision calibration of sensors. The lower zone in the system
ensures optimum temperature distribution throughout the entire
calibration zone, while the upper zone compensates for heat loss from
the sensor under test. High accuracy of + 0.3°C with the internal
reference sensor and + 0.06°C with an external reference sensor can
be achieved and there are no measuring errors due to thermoelectric
effects or cable resistance.
In addition, the unit is supplied with Mains power Variance Immunity
(MVI) for improved temperature stability. MVI removes stability
problems by immediately identifying variations in the mains input
voltage. The MVI circuitry maintains a constant energy flow to the
temperature block to provide a problem-free calibration with a
stability that the operator can trust.
The ATC-125 offers extraordinary versatility for calibrating
different diameter sensors and multiple sensors. A variety of inserts
are available ranging from a single hole insert for use with one
sensor and the internal reference sensor to up to 24 or more sensors
under test simultaneously with an external reference sensor. Standard
or custom sensor inserts are available with holes in both metric and
imperial sizes.
-ENDS-
Further Enquiries UK: Ian McPhie, AMETEK Calibration Instruments
Ltd, 12 Barnes Wallis Road, Segensworth East, Fareham, Hants PO15 5TT
UK. Tel. +44 (0)1489 486404 Fax. +44 (0)1489 885118 http://
www.jofra.com E-mail jofra@ametek.co.uk
Further Enquiries Europe: AMETEK Calibration Instruments, Gydevang
32-34, 3450 Allerød - Denmark, Tel: +45 4816 8000 Fax: +45 4816 8080
http://www.jofra.com E-mail ametek@ametek.dk
Press Enquiries: Denis Bulgin, In Press Public Relations Ltd. PO Box
24, Royston, Herts, SG8 6TT UK. Tel: +44 (0) 1763 262621, Fax +44 (0)
1488 73773. http://www.inpress.co.uk E-mail: denis@inpress.co.uk
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