YSI 2700 Select Biochemistry Analyzer

The simple procedure for running your sample is

1. Turn on the instrument. The power supply is (as you face the instruments) on the lower left hand side of the back panel.
2. After you turn it on, turn the instrument to run mode using the LCD menu and keypad.
3. Wait for the machine to auto-calibrate.
4. Hit “Run Sample”. This will summon the manual injection needle from its housing and cause it to extend from the upper left front of the unit.
5. After the aspiration needle is still and fully extended, carefully hold your sample-containing test tube so that the needle tip is immersed in the sample. While holding the sample in this position, hit “Aspirate Sample”.
6. Hold your sample until the aspiration needle withdraws back into the unit’s housing.
7. Wait for the analysis of your sample to be completed and for the results to display on the LCD screen.
8. Repeat 4 -7 as desired.
9. When you are finished, change the instrument to “Standby” mode in the front control panel.
10. Turn off the YSI 2700 Select Biochemistry Analyzer.

Notes:

Every 5 – 6 samples, the machine will automatically recalibrate itself to make sure that the current measured for reference standards is not drifting too far from the previously established calibration. The autocalibration takes some minutes to complete. Be patient.
Periodically, buffer tanks run low and enzyme electrodes need to be replaced. See Jose for advice on how to do this.

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