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Royce Water Technologies - JOFRA The world leader and innovator in temperature calibration announces another new breakthrough with the release of the first dryblock temperature calibrator for temperature calibration to -90 C.
Advanced Temperature Calibrators of JOFRA ATC-125 Ultra Cooler Dryblock Calibrator
ATC-125 ULTRA COOLER
The coolest dry-block in the world!
The JOFRA ATC-125 ultra cooler is the first dryblock calibrator on the market offering the widest temperature range ever for cooling dry-blocks from 125°C down to -90°C! The unique technology sets new standards for optimum temperature calibrations in frozen and deep frozen applications.
• Wide temperature rangeATC-125 ultra cooler: -90°C to 125°C
• Portable calibration at low temperatureState of the art cooling technology ensures energy efficiency, environmental friendliness and portable calibration
• High accuracyUsing the internal reference or the external reference probe. 4-wire True-Ohm Measurement technology is used
• Improved temperature homogeneityUnique dual-zone block ensures good temperature homogeneity in the critical calibration zone
• Cost effective calibration systemStand-alone operation eliminates the need for secondary equipment and PC. Universal inputs handle multiple type temperature sensors
• Timesaving featuresUp- and download complete calibration tasks. Auto-stepping, switch testing and many more features make the daily use smooth and fast
• Documentation made easyRS232 communication and JOFRACAL calibration software are included in the standard delivery
DESCRIPTION of JOFRA ATC-125 Ultra Cooler Dryblock Calibrator:
The JOFRA ATC-125 ultra cooler features a unique technology for optimum performance and superior temperature homogeneity throughout the block at very low temperatures. The ATC-125 has a performance equivalent to a liquid temperature bath and features the widest temperature range for any cooling dry-block on the market today. The ATC-125 ultra cooler calibrator may be used to perform fully automatic calibration routines without using an external computer. It is also possible to use the computer for full upload and download capabilities. The ATC-125 may also be supplied with inputs for external reference sensors and for sensors under-test. All ATC calibrators feature RS232 serial communication and the standard delivery also includes the JOFRACAL calibration PC software.
Unique temperature performance of JOFRA ATC-125 Ultra Cooler Dryblock Calibrator
The ATC series of calibrators provide precision temperature calibration of sensors; whatever the type or format. This is accomplished through an innovative dual-zone technology. The JOFRA ATC-125 features dual-zone technology. Each zone is controlled for precision temperature calibration. The homogeneity in the lower part is close to that of a laboratory liquid bath. The lower zone ensures optimum temperature distribution throughout the entire calibration zone. The upper zone compensates for heat loss from the sensor-under-test.
Efficient cooling techniques of JOFRA ATC-125 Ultra Cooler Dryblock Calibrator
The ATC-125 with both heating and cooling capabilities features the FPSC (Free piston stirling cooler) as cooling source. The FPSC is a Stirling heat pump that uses a small amount helium gas as a heat transport medium, instead of standard refrigerants. The FPSC has an advantage, over traditional cooling systems, both in energy efficiency and environmental friendliness. These advantages are accomplished using state of the art technology and by virtue of being Freon, CFC and HFC free. The FPSC has two major moving parts (piston and displacer) that oscillate in a linear motion along the same axis within a single cylinder which is installed in a stainless steel casing. The piston repeatedly compresses and expands the helium gas to cool the tip (cold head) of the extended part of the casing. The FPSC can be used to cool an object down to a temperature between -50°C and -100°C at an ambient temperature condition of 23°C. The FPSC has a high efficiency. It can be as much as 6 times higher than thermoelectric (Peltier) coolers.
Reading of sensor-under-test (model B only)
The ATC series model B is equipped with built-in converters (inputs) that measure virtually any type of temperature sensor including:
• thermostats• resistance thermometers (RTD)• thermocouples (TC)• transmitters• milliamps (mA)• voltage (V)
ATC series calibrators can be user-programmed for completely automated temperature calibrations. Once the unit is set up, the instrument operates itself by performing the configured calibration routine. All calibration data is stored and available for uploading and generating exact calibration certificates or reports.
Simplified calibration documentation - JOFRACAL
All ATC series calibrators are provided with the JOFRACAL calibration software. This software allows the user to customize his or her calibration routines. The software is easy-to-use so you do not have to be a programmer to configure your own calibration procedures. The software features prompts, menus, and help functions that guide you through the configuration process. The JOFRACAL calibration software supports automatic calibration for all JOFRA dry-block calibrators equipped with an RS232 serial data interface including the JOFRA DTI050 digital thermometer, the JOFRA DTI-1000 digital thermometer and the JOFRA ASM Multi-scanner. For semi-automatic calibrations, the software also supports liquid baths, ice points, or other dry-block heating and cooling sources. Using the software’s ’’SCENARIO’’ function allows for combining instruments in virtually any configuration. The calibration data collected may be stored on a PC for later recall or analysis. The ATC calibrator stores the calibration procedure and may be taken out to the process site without using a personal computer.
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