ATMOS Pipette Accuracy Tester Operation Manual ATMOS Operation Manual

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ATMOS Operation Manual

The Pipette Accuracy Tester ATMOS is designed for the specific use of testing and calibrating air displacement laboratory pipettes and no other use is recommended. The user must read and understand this manual before operation. This instrument should only be used in a laboratory environment. Do not open or attempt to repair the instrument without expressed and explicit instructions from UniPix. Do not use the instrument in an atmosphere with a danger of explosion. Do not allow unauthorized and/or untrained operators to use this device. Do not recharge the instrument in a liquid or humid environment....

General Information About ATMOS The UniPix ATMOS Pipette Accuracy Tester is an instrument for precise measurement of air displacement pipettes, without need of liquid. It is based on comparison with a calibrated internal reference cavity in the instrument. It also measures the leak rate of pipettes. Never use the instrument with liquid in the pipette tip. This will permanently damage the instrument (no repair is possible)! Allow the internal temperature to stabilize during at least 30 minutes after unpacking or moving the instrument from another room. It is recommended to verify that the instrument...

Using ATMOS Turning on ATMOS    Press the main switch on the front of the instrument to power on. After powering on, the instrument runs a self-test procedure for about 10 seconds. The home screen then shows all available functions: Accuracy: Precise measurement of air displacement pipettes, in absence of liquid. Molarity: Calculator for molar concentration for your customizable values. Dilution: Calculator for dilution of your solution. Serial dilution: Calculator for serial dilution by pre-defined or customized factors. Calculator: Standard calculator. Settings (gear symbol): See/change...

ATMOS Functions The ATMOS device offers various functions for daily laboratory work. Apart from the pipette accuracy measurement, it can also support the user with molarity/dilution/serial dilution calculations and offers a standard calculator. All functions are described below. Accuracy Function The accuracy function will measure the accuracy of your pipette. Click the button “Accuracy” on the main screen. Pipette Size Selection Screen Select the pipette size you are testing (important: select the nominal volume of your pipette!): Battery status (it is recommended to keep ATMOS in charge when...

Measurement screen After pipette selection or after measurements, you will see the measurement screen. Date & time (touching on date & time line will bring you to the settings screen) Selected volume (for variable volume pipettes) Pipette nominal volume. Click to change volume and return to previous screen. Pipette ID (touch inside the frame to set a new pipette ID) Start the measurement (insert tip BEFORE pressing “Start”) From this screen, you can reach the following functions:  The Start button will initiate the measurement procedure. You can get started immediately, if you work with a fixed...

Measurement Procedure 1. Insert the pipette tip firmly in the center port. Hold the pipette vertically and steady, but do not press down the piston. (Liquid will permanently damage the instrument) 2. Press the Start button, without moving the pipette. Push the piston to the first stop, while keeping the tip inserted in the port. Movement of the piston should be done during the BLUE phase of progress bar. 4. The progress bar at the bottom indicates that the instrument is measuring. The pipette and the piston should be kept steady when the progress bar is RED. 5. Release the piston when the progress...

Results Screen 1-channel version Leak rate (in volume loss per second) Measurement number Measured volume displacement List of previous measurements (up to 10 values) End: Stop the series (current data will be stored. Average value and STDEV will be displayed) Skip: This will remove the current measurement (data will not be stored) Next: Start the next measurement (current data will be stored) The result screen shows the following data: Nb: Measurement number. Up to 10 measurements can be shown. RESULT: Measured volume displacement of each measurement. Leak rate: Expressed in volume loss per...

8-channel version Leak rate per channel (in volume loss per second) Measurement number Measured volume displacement Number of channel End: Stop the series (current data will be stored. Average value and STDEV will be displayed) Skip: This will remove the current measurement (data will not be stored) Next: Start the next measurement (current data will be stored) The result screen shows the following data: N: Measurement number. RESULT: Measured volume displacement for each of the 8 channels. Leak rate: Expressed in volume loss per second per channel. A leak above 1%/sec of test volume indicates...

Statistics Screen 1-channel version This screen is shown after clicking the “END” button after min. 3 measurements. Date, time and internal temperature Standard deviation (STDEV) of the measurement series Average of the series of n measurements New measurements: Will bring you back to the measurement screen to start a new series of measurements. Current date, time, and ambient temperature Information on the pipette (P and volume) pre-defined by user ID: numeric ID pre-defined by user Average volume of the series of n measurements and standard deviation (STDEV) of the measurement series The New...