WESCOR Vapro 5520 - User Manual

Provides an overview of the Vapro User's Manual and its contents, emphasizing efficient operation and instrument care.

Contact information and procedures for obtaining technical assistance and support for the Vapro osmometer.

Details the Vapro osmometer's advanced electronic adaptation of the hygrometric method for vapor pressure determination.

Explains the operational principle of the Vapro osmometer, including sample aspiration, vapor pressure equilibrium, and measurement cycle.

Description of the Vapro osmometer's front panel controls including display, keypad, and indicators.

Details the TC Head Access Cover on the instrument top for cleaning and maintenance.

Details the Vapro osmometer's rear panel components like serial data port and power entry module.

Explains the power entry module, fuse door, power switch, and voltage selector on the Vapro osmometer.

Provides a step-by-step guide for the initial setup and operation of the Vapro osmometer.

Lists the accessories and supplies furnished with the Vapro osmometer and recommended cleaning procedures.

Step-by-step instructions for placing the osmometer, connecting the power cord, and preparing the sample chamber.

Information on the micropipettor used with the Vapro osmometer, including positive displacement pipettors.

Instructions on how to use Optimol ampoule osmolality standards for calibrating the Vapro osmometer.

Guidance on using Osmocoll II serum control for Vapro osmometer calibration and quality assurance checks.

Instructions on how to change the voltage selector on the Vapro osmometer to match the local power source.

Procedure for accessing and replacing fuses in the Vapro osmometer, including fuse specifications.

Introduces the operation modes (Normal, Average) and functions of the Vapro osmometer.

Details the Auto Repeat Mode for performing consecutive measurements and checking for contamination.

Explains the Process Delay Mode for handling samples that may not readily evaporate or require longer equilibration.

Describes the Function Menu options: Calibrate, Clean Test, Delete Result, and Mode Menu.

Details the Clean Test procedure for checking thermocouple cleanliness and contamination levels.

Explains how to delete the last result from the data group using the Vapro osmometer.

Instructions on how to exit the Function Menu and return to the Mode Menu.

Provides detailed instructions on how to properly load samples into the Vapro osmometer's sample chamber.

Step-by-step guide on how to remove and clean the sample holder for the Vapro osmometer.

Instructions for running the Clean Test to assess thermocouple cleanliness and contamination levels.

Explains the factors affecting calibration accuracy and provides guidance on instrument calibration procedures.

Details the instrument's behavior during standby or waiting periods and the importance of proper chamber management.

Information on the Vapro osmometer's serial data port, its configuration, and how to send data to an external device.

Overview of routine maintenance tasks for the Vapro osmometer, including cleaning and reinstalling the TC head.

Step-by-step instructions for safely removing the TC head from the Vapro osmometer for cleaning or service.

Detailed procedure for cleaning the TC head, including materials needed and step-by-step instructions.

Instructions for correctly reinstalling the TC head and its connector after cleaning or maintenance.

Explains the thermal equilibrium process after cleaning and reinstalling the TC head.

Methods for handling and removing severe or stubborn contamination from the Vapro osmometer's TC head.

Describes problems encountered with the Vapro osmometer and provides suggested solutions via a flowchart.

Identifies common problems related to the TC head, such as contamination, deformation, or breakage.

Discusses external factors like calibration standards, sampling errors, and micropipettor use that can affect measurement precision.

Details how to identify and potentially restore a deformed thermocouple or the need for replacement.

Explains the first program step of the Vapro osmometer: equilibration and zero set.

Details the second program step of the Vapro osmometer: cooling via the Peltier Effect.

Explains the third program step of the Vapro osmometer: dew point convergence.

Describes the final program step of the Vapro osmometer, including sequence completion and final readings.

Discusses the Vapro osmometer's advantages in clinical and general research applications, including small sample requirements.

Provides instructions for preparing and measuring samples using very low volumes (under 4 µL).

Guidance on measuring large samples, considering sample material properties and using alternative sample holders.

Techniques for sampling viscous or nonhomogeneous specimens, including methods for ensuring proper sample disc saturation.

Discusses challenges and considerations when performing osmometry on solutions containing multiple solvents.