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Osmo1™ Single-Sample Micro-Osmometer Service Guide
Foreword
About this instrument
Advanced Instruments osmometers use the technique of freezing point depression to measure osmolality. Osmolality is the
total solute concentration of an aqueous solution. Osmometers measure the number of solute particles irrespective of
molecular weight or ionic charge.
Osmolality information is useful to disciplines including but not limited to:
• Clinical, emergency, and sports medicine
• Medical research
• Academic research
Osmolality is a valuable clinical tool used in the diagnosis and treatment of patients. It is a quick and eective test to help
evaluate the body’s water balance or its ability to produce and concentrate urine, to investigate low sodium levels
(hyponatremia), to detect the presence of toxins in the body, and to monitor osmotically active drug therapies such as
mannitol, which is used to treat cerebral edema. This test is also ordered to help monitor the eectiveness of a treatment
for a condition found to be adversely aecting a person’s osmolality.
Osmometers test virtually any biological fluid including but not limited to:
• Whole blood
• Serum
• Plasma
• Urine
• Feces
• Sweat
• Tissue homogenate
Operation of the instrument is deemed moderate complexity under CLIA and FDA guidelines.
About the Service Manual
This Service Manual contains:
• Instructions for performing repairs
• Guides for troubleshooting operational and mechanical problems
• Circuit system illustrations
• Information about replacement parts and service repairs
This manual is designed to assist service technicians and does not imply a license to perform repairs without proper
qualifications.
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