Milk Freezing Point Depression (FPD) Test
The Advanced Instruments 4250 Cryoscope measures FPD to check for extraneous water in milk
Approved reference, industry standard method
Proven reliability and robustness throughout the UK dairy industry
CCP for all milk processors conforming to ISO standard
Superior to milk hydrometers and lactometers
Freezing Point Depression
Freezing Point Depression (FPD) is used to determine extraneous water in milk and is a CCP for all milk processors. The Advanced Instruments 4250 Cryoscope senses sample temperature by using high precision thermistors and then controls the degree of super-cooling and freeze induction, and measures the freezing point of the milk sample in just two minutes. It allows you to manage a premium milk supply, ensure quality products and improve your operating efficiency. It conforms to ISO/FDIS-5764/IDF108 ensuring your dairy is fully compliant with current standards.
4250 Cryoscope
The Advanced Instruments 4250 is the market leading Cryoscope for measuring Freezing Point Depression in milk to ensure no water contamination is present. The 4250 has been the industry standard Cryoscope in the UK for over 30 years because of its superiority to milk hydrometers and lactometers. The 4250 uses a very robust Peltier cooling system to ensure fast sample cooling, This cooling assembly also means that even high sample numbers and warm lab temperatures do not cause problems with the effective freezing of samples, meaning fewer freeze errors and repeated testing, keeping you working at all times. The 4250 is simple to calibrate and maintenance is straightforward.
Try Before You Buy
The 4250 Cryoscope is available for a demonstration or a short term trial.
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Intelligent Control
With the 4250, a user can develop a freezing point range by producer, enabling storage of a “base” freezing point in the instrument memory and displaying with each sample test result the percent difference between the freezing point depression test result and the stored base.
The Intel microprocessor allows the user to recall the last 30 test results along with date and time.
The 4250 can be used with an optional bar code scanner, providing positive sample identification and minimizing transcription errors.
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4250 Cryoscope
Calibration Update
Implementing ISO5764
Service and Support
Specification
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
Reference Conditions: 20 to 25°C (68 to 77°F); 40 to 60% relative humidity; tolerances of reference or calibration solutions excluded
Performance at Reference Conditions1Linearity: 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: H 40.6 cm x W 33.0 cm x D 45.7 cm
Net Weight: 12.7 kg