Thermo Forma 3980, Руководство пользователя

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Model 3980 and 3986 Incubators _________________________________Installation/Start-Up
2-8
c. Changing the Pen
1. Using a small flat blade screwdriver, loosen the 2 screws holding
the pen arm and remove the pen and arm as an assembly.
2. Unsnap the plastic hinge securing the pen. Remove and discard
the old pen.
3. Install the new pen by snapping the hinge securely around the pen
arm.
4. Re-install the pen assembly by sliding the pen arm under the
screws, positioning the pen tip in the time line groove. Tighten the screws.
5. Push the Chart Change button and hold it for 1 second until the pen begins to move back onto
the chart.
Note: Make sure that the pen is marking on the chart. It may be necessary
to gently lift the pen onto the chart paper.
d. Calibrating the Chart Recorder
1. Place an accurate thermometer(s) in the chamber next to the recorder’s probe(s). After about
three minutes, compare the thermometer with the chart recorder. For 2 pen operations, also
compare the second thermometer.
Note: For 2 pen operations, first select the pen you wish to
calibrate. Hold down the #1 arrow for the red (#1) pen or the
#2 arrow for the blue (#2) pen, until the light goes out. Then
adjust as necessary.
If an adjustment is necessary, press either the #1 or #2 button
to move the pen left or right. The button must be held about five
seconds before the pen begins to move. Release the button when
the pen matches the thermometer.
Figure 2-4
Figure 2-5