The Advanced Instruments Model 4250 Single-Sample Cryoscope employs the freezing point depression (FPD) method for the determination of added water in milk.

 

Single sample, 2.0 or 2.5 ml sample size, the Model 4250 Cryoscope design includes m°C or m°H scale, timed plateau or plateau seeking modes, and multi-language display prompts. A frost-free cooling chamber eliminates most routine maintenance. Additionally, the 4250 sample probe and stir-wire are fully accessible for easy cleaning.

 

On-board printer

Automated calibration

Simple push-button design

Multi-language capabilit

Statistical analysis

Stores up to 30 test results

Optional bar code scanner

The Model 4250 allows your plant to manage a premium milk supply, ensure quality products and improve your operating efficiency. The 4250 offers both the International Reference and screening freezing point methods for rapid, precise, reliable results.

Advanced Instruments also supplies CryoLine, NIST-traceable quality supplies for use with our Cryoscopes.

422 and 621 Milk Caliration Standards

LactrolTM 530 Reference Solution

Specifically designed to satisfy ISO, HACCP, and QA/QC requirements.

Helps assure monitoring and control of milk supply process and product integrity, from farm to finished product.

 

Advanced® Model 4250 Single-Sample Cryoscope Technical Specifications

Electrical

Power Requirement: 100 to 130 VAC (50/60 Hz) or 200 to 250 VAC (50/60 Hz)
Fuses (2): 250V time delay (Type T): 2-Amp (100-130 VAC); 1-Amp (200-250 VAC)
Power Consumption: 150 Watts
Memory Backup: Integral lithium cell; 10-year life (typical); (not user replaceable)

Sample Volume: 2.0 to 2.5 mL

Sample Capacity: Single sample

Readout: 20-character vacuum fluorescent display

Units: mºC or mºH

Range: 0 to 1000 mºC or mºH

Resolution: 1 mºC or mºH

Communications: On-board printer, DTE EIA-232/V.24 (RS-232) serial port and optional barcode scanner

Performance at Reference Conditions

Linearity: Less than 0.5% from a straight line
Repeatability: ± 2 mºC or mºH (1 S.D.) between 0 and -400 mºC ± 0.5% (1 S.D.) between -400 and -1000 mºC
Drift: Less than 1 unit per month

Performance Over Operating Conditions

Temperature Effects: Less than 1 unit for every 5°C (9°F) ambient temperature change.
Operating Conditions Temperature: 18°C to 35°C (64°F to 95°F)
Humidity: 5 to 80% relative humidity (non-condensing)
Storage Temperature: -40°C to +45°C (-40°F to +113°F)
Start-up Time: Immediately from stand-by; under 5 minutes from power-on
Test Time: Approximately 90 seconds in 30-second timed mode

Dimensions:
30.5 cm x 33.0 cm x 45.7 cm
(12.0” H x 13.0” W x 18.0” D)
Height With Head Up: 40.6 cm (16.0” H)

Weight
Net: 12.7 kg (28.0 lbs.)
Shipping: 17.7 kg (39.0 lbs.)

Warranty: One-year limited warranty on workmanship and all parts except glass, plastic, and parts warranted by their makers