145
Appendix A
Model 3250 Specifications
1 Reference Conditions: 20 to 25 °C (68 to 77 °F); 40 to 60% Relative Humidity; tolerances of reference or calibration solutions excluded.
Serial Suffix A - C
Applies to Serial Suffix A - C. Refer to 3250 Design Changes for more information.
Electrical:
Voltage: 100 to 240 VAC (1.4 - 0.75 A)
Frequency: 50 or 60 Hz
Fuses: 2-Amp time delay (Type T) 250 VAC
Power: 95 Watts
Memory Backup: integral lithium cell; 10 years min.
(not user-replaceable)
Sample Volume: 0.2 or .25 mL
Sample Capacity: single sample
Readout: 20-character digital display
Units: mOsm/Kg H
2
O
Range:
Low: 0 to 2000 mOsm/Kg H
2
O
High: 1400 to 4000 mOsm/Kg H
2
O
Resolution:
1 mOsm/Kg H
2
O
Communications: RS-232C and barcode scanner ports
Performance at Reference Conditions
1
Linearity: Less than ±0.5% from a straight line
Repeatability:
0 to 400 mOsm ±2 mOsm/Kg (1 SD)
400 to 4000 mOsm ±0.5% (1 SD)
Drift:
Less than 1 mOsm/Kg H
2
O per month
Performance Over Operating Conditions
Temperature Effects: Less than 1 mOsm/Kg H
2
O for every 5°C (9°F) ambient
temperature change.
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