Advanced® Model 3320 Micro-Osmometer Technical Specifications
Performance at Reference Conditions
Linearity: Less than ±1% from a straight line over calibrated range
Repeatability: 0 to 400 mOsm: ±2 mOsm/kg (1 S.D.) 400 to 2000 mOsm: ±0.5% (1 S.D.)
Drift: Less than 1 mOsm/kg H2O per month
Performance Over Operating Conditions
Temperature Effects: Less than 1 mOsm/kg H2O 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 Temp.: -40°C to +45°C (-40°F to +113°F)
Start-up Time: 30 seconds from power-on
Test Time: 60 seconds
Dimensions
35.5 cm x 35.5 cm x 38.1 cm
(14.0" H x 14.0" W x 15.0" D)
Weight
Net: 6.1 kg (13.4 lbs.)
Shipping: 11.4 kg (25.0 lbs.)
Warranty: One-year limited warranty on workmanship and all parts except glass, plastic, and parts warranted by their makers.
Certification:
Installation Class: I
Over-Voltage
Category: II
Pollution Degree: 2
Moisture Protection: IPX0 (ordinary)
The Advanced® Model 3320 Osmometer measures the osmolality of an unknown inside the sample tip. This requires sample tips specially designed to match both the sampler and the Model 3320. Do not use any other sample-handling system with your Model 3320 osmometer, and do not use the Model 3320 sampling system for any other laboratory procedure.
Be sure to replace the sampler plunger wire with each new test kit (500 samples). For instructions on this procedure, see “Sampler plunger wire replacement and verification” in Chapter 5 of the 3320 User Guide.
Advanced Instruments offers and recommends the use of specific standards and controls with your Model 3320 osmometer. Each type may be used to assess a different aspect of your instrument’s performance. For information on obtaining these standards and controls, contact Advanced Instruments or an authorized representative.
Proper instrument operation and warranty protection depends on the use of Advanced Instruments supplies, parts and accessories.
Daily Routine maintenance
Listed below are the checks you should perform to keep your instrument in peak condition:
1. Cleaning Air Vents
Examine the air vents on the underside and rear of the instrument to ensure they are unobstructed by dust or debris.
2. Cleaning the Instrument Exterior
Use a mixture of warm water and soap. Isopropyl Alcohol may also be used to further decontaminate the exterior. Do not use abrasive cleansers or scouring pads, as they may mar the surface. Do not allow liquid to enter the cooling chamber or other portions of the instrument.
Chamber cleaning
The cooling chamber and probe are easy to keep clean and dry by faithfully following the operating instructions for cleaning the freezing chamber after each test. If traces of calibrators, controls or biological samples are left in the sample chamber, the task will be more difficult and damp cleaning will probably be required. Two indicators that damp cleaning may be required are:
• The instrument has been in use, but no clean, dry chamber cleaner is found in the sample port, and successive results on aliquots of the same sample indicate chamber contamination (the first aliquot reading is very high, and subsequent readings are progressively lower).
• “Sample Pre-freeze” errors begin to occur quite frequently. When indicated, the cooling chamber may be damp cleaned as follows.
1. Allow the instrument to go into Stand-by Mode. This allows the cooling chamber to warm to room temperature.
2. Dampen (do not saturate) the end of a chamber cleaner with 70% isopropanol solution.
3. Firmly insert the dampened chamber cleaner all the way into the sample port (see figure 6, step 8 of the 3320 User Guide), rotate it four or five times (clockwise and counter-clockwise) and withdraw. If the end is stained or has debris stuck to it, repeat with another dampened chamber cleaner.
4. Repeat with a dry chamber cleaner. Insert and leave a clean, dry chamber cleaner in the sample port until the next sample is to be tested.
Shutdown and storage
Overnight or weekend:
1. Using a chamber cleaner, clean the cooling chamber and probe with distilled water. Firmly insert the dampened chamber cleaner all the way into the sample port and rotate it four or five times (clockwise and counter-clockwise).
2. Turn off the instrument, if desired.
3. Do not cover the instrument unless it is turned off.
One week or longer:
1. Using a chamber cleaner, clean the cooling chamber and probe with distilled water. Firmly insert the dampened chamber cleaner all the way into the sample port and rotate it four or five times (clockwise and counter-clockwise).
2. Turn off the instrument.
3. Unplug the power cord from the wall outlet.
4. Cover the instrument.
Service and maintenance cautions
Do not perform any service or maintenance yourself, except as detailed in the User’s Guide.
• Unplug the power cord prior to opening or removing covers, or else you may be exposed to electric shock, excessive temperatures, or mechanical hazards.
• Performing service or maintenance not detailed in the User’s Guide, with or without a Service Manual, should only be done by a qualified service technician.
• Never restrict airflow into or out of the product. Occasionally, check the air vents for blockage.
• Wipe the exterior of the product with a soft, damp cloth as needed. Using cleaning products other than those specified, may discolor or damage the finish.
• If the product requires service for any of the following reasons, unplug the product from the electrical outlet and contact a qualified service technician.
- The power cord, extension cord, power strip, or power input module is damaged.
- Liquid has been spilled into the interior of the product.
- A foreign object has fallen into the product.
- The product has been dropped or damaged by a falling object.
- There are noticeable signs of overheating or a burning odor.
- The product does not operate normally when you follow the operating procedures.
- The main supply fuse(s) or any internal fuse(s) continually fail.
• A discharge of static electricity from contact with the human body or other conductor may damage system boards or static sensitive devices. Never perform internal maintenance without following recommended static protection procedures.
• The product is equipped with operator accessible fuses. If a fuse blows, it may be due to a power surge or failure of a component. Replace the fuse only once. If the fuse blows a second time, it is probably caused by failure of a component part. If this occurs, refer service to qualified service personnel. Always replace the fuse with one of the same rating, voltage, and type. Never replace the fuse with one of a higher current rating.
• When servicing the product, use only factory-specified parts.
• WARNING: When returning this product for service, or shipping this product to a second location, remove all hazardous specimens and decontaminate the product before packaging for shipment. If the product cannot be decontaminated, consult with your shipping agent on appropriate packaging and marking.
