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Advanced Instruments Cryoscopy - 4250, 4C3 & Accessories
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Advanced Instruments 4250 Cryoscope
Fast, accurate measurements of added water in milk.
The 4250 Cryoscope from Advanced Instruments supersedes the 4D3 and Fiske Mark 2 models whilst maintaining all of the outstanding qualities of these cryoscopes; robust design, proven reliability and simple, rapid operation.
The 4250 single-sample cryoscope uses the industry standard thermistor freezing point method to precisely determine added water in milk. With its on-board sample identification, broad measurement range and optimal sample size requirement, the 4250 provides accurate results compliant with ISO5764 plateau-seeking mode. The 4250 combines advanced features with simplified operation - a low maintenance, reliable high performance laboratory instrument.
The 4250 can be used in many situations and environments. Results can be displayed as desired and results can be collected on a computer or connected to a LIMS system.
Quality management is improved by the 4250's unique key-switch, which allows the advanced set-up features and calibration modes to be locked out. In Operator Mode, routine testing can be accomplished with just two buttons; in Supervisor Mode, all operations are accessible.
Suppliers and processors can keep milk shipments moving while being assured that no added water has been introduced. Up to 35 samples per hour can be measured. The calibration procedure is quick and computer controlled - it will also detect and warn the operator if the calibration solutions are tested out of order. Settings are stored in a battery-protected memory. The 4250 also incorporates a new thermal printer.
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Proven accuracy
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Repeatability of +/-2m°C.
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Robust design/minimal maintenance
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S/S construction, frost-free cooling chamber and high quality components.
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Proven reliability
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Widely used across Western Europe and America for many years.
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Unique keyswitch
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Locks our certain features such as calibration. In "Supervisor Mode", all operations are accessible.
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Fully compliant to ISO5764
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Fully updated to comply to the latest International Standard.
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Computer controlled calibration
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Calibration is simple and straightforward. If the wrong solution is used during calibration, a warning is displayed and the calibration is not accepted.
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Battery protected memory
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Calibration is not lost even if unit loses power.
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Thermal printer
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Constant printout of results, no ink cartridges needed.
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Model 4250 Single-Sample Cryoscope Specifications
Sample Volume - 2 or 2.5 mL
Test Time - Approximately 90 seconds in the 30-second timed mode
Sample Capacity - Single Sample
Units - -m°C or -m°H
Resolution - 1 m°C or m°H
Range - 0 to 1000 m°C or m°H
Communications - On-board printer, DTE RS-232 serial port, and optional barcode scanner
Performance at Reference Conditions*:
Linearity - Less than ±0.5% from a straight line
Repeatability - ±2 m°C or m°H (1 S.D.)
Drift - Less than 1 m°C or m°H per month
Performance Over Operating Conditions:
Temperature Effects - Less than 1 m°C or m°H per 5°C (9°F) ambient temperature change
Operating Conditions:
Temperature - 18 to 35°C (64 to 95°F)
Humidity - 5 to 80% relative humidity, (non-condensing)
Storage Temperature - -40 to +45°C (-40 to +113°F)
Electrical: Voltage - 100 to 130 VAC (50/60 Hz) or 200 to 250 VAC (50/60 Hz)
Power Consumption - 150 Watts
Dimensions - 16.0” H x 13.0” W x 18.0” D (40.6 cm x 33.0 cm x 45.7 cm)
Net Weight - 28.0 lbs. (12.7 kg)
Shipping Weight - 39.0 lbs. (17.7 kg)
Warranty - One year limited warranty on workmanship and all parts except glass, plastic, and parts warranted by their makers
*Reference Conditions - 20 to 25°C (68 to 77°F); 40 to 60% relative humidity; tolerances of reference or calibration solutions excluded
For further information on this product please do not hesitate to call our technical team on 01342 820820 or email enquiries@qclscientific.com.
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Advanced Instruments 4C3 Multi-Sample Cryoscope
Accurate & Reliable Multi-Sample Testing
The Advanced 4C3 multi-sample cryoscope uses the preferred freezing-point method to precisely determine the amount of added water in milk, offering unique continuous throughput for maximum efficiency in large volume testing.
Batch testing is also efficient with the 4C3; samples can be prepared in advance and loaded into sample cassettes. When ready to begin testing, an operator can load up to four sample cassettes (holding up to 40 samples) into the cryoscope, press Start and walk away. The instrument automatically tests each sample in turn and records the results; keeping your cryoscope and operator working at peak efficiency.
The 4C3 offers an optional barcode scanner to automate positive sample identification and eliminate test result transcription errors.
The 4C3 is microprocessor controlled for simple, pushbutton operation. Extensive self-diagnostic and troubleshooting prompts keep you up and running.
Superior Results
The Advanced 4C3 freezing-point technology complies with both the International reference and screening method; delivering precise, accurate, repeatable and reliable results.
Positive Sample Identification
Available printer and RS232 ports from which, date, time, sample ID and test result can be reported.
Operator-selectable Options
Standard design includes m°C or m°H scales, timed plateau or plateau seeking modes, and four language prompts.
Calibration Ease
Simply load the calibration samples into the specially coded calibration cassette and calibration is automatically triggered to run unattended.
Fast Testing, Fully Automated
With the unique dual-stage, solid-state cooling assembly, testing can begin immediately. You don’t waste time waiting for your instrument to cool down.
Rewarding
The capacity of the 4C3 allows your lab to efficiently test and manage supplied milk in order to properly compensate producers, ensure quality products and profitable returns.
Advanced 4C3 Multi-Sample Cryoscope Specifications
Sample Size - 2.0 to 2.5mL
Sample Capacity - Holds up to 4 (four) cassettes
Readout - 20-character digital display and on-board thermal printer
Units - m°C or m°H
Range - 0 to -1000 m°C or m°H
Linearity - Typically within ±0 5% (straight line method)
Resolution - ±1 m°C or m°H
Repeatability - ±2 m°C (1 S.D.)
Power Requirement - 100 to 130 V(60Hz) or 200 to 250 V(50 Hz)
Power Consumption - 350 W
Dimensions - 21.5"H x 21.5"W x 20"D (55cmH x 55cmW x 51cmD)
Net Weight - 55 lbs. (25 kg)
Shipping Weight - 75 lbs. (34 kg)
Storage Temperature -40 to +158°F (-40 to +70°C)
Operating Temperature - 64 to 95°F (18 to 35°C)
Drift - Less than 1 digit per month plus 1 digit for every 9°F or 5°C ambient temperature change
Room Humidity - 5 to 80% R.H., non-condensing
Sample Throughput - Approximately 40 samples per hour in the 30-second plateau mode at an ambient temperature of 23°C. Increase in ambient temperature will result in decrease of sample throughput.
Warranty - One-year limited warranty on workmanship and all parts except glass, plastic, and parts warranted by their makers.
For further information on this product please do not hesitate to call our technical team on 01342 820820 or email enquiries@qclscientific.com.
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Cryoscope Accessories
QCL Cryoscope Calibration and Check Standards (480mOC, 600mOC and 512mOC), 250ml, 12-month self-life from manufacture date. Certificate of Conformity and traceable to ISO5764.
Cryoscope tubes, pack of 12, conform to ISO5764 (borosilicate glass, precise dimensions).
Bath liquid, thermistor probes, air filters and printer paper.
For further information on these products please do not hesitate to call our technical team on 01342 820820 or email enquiries@qclscientific.com.
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