Advanced® Model 4250單通道牛奶冰點測試儀
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
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