Low Temp Incubator 1-5Thermo Scientific
Section 1
Installation and Start-Up
4) Recorder Output - This is a DC millivolt output which represents the
temperature of the incubator. The recommended main use of this is
with a chart recorder having an input impedance of at least 1 megohm.
The scaled temperature output change is 10 millivolt/degree C. When
the incubator is operating at a negative temperature, the chart recorder
output is still positive. Use the chart below to relate temperature to
output voltage.
Located on the chart recorder printed circuit board is an offset
potentiometer R3. If, for some reason, the recorder output voltage does
not match the temperature as shown in the chart, this potentiometer
can be used to tune it in.
When connecting a chart recorder to the recorder output connector, it
is recommended to use a shielded cable with the shield grounded at
the chart recorder and to keep the cable short as possible.
Located on the rear side of the incubator is an instrumentation port for the
user to insert sensor wires, external meter leads, etc. into the chamber. The
rubber plug provided must always be used in this port to insure the
uniformity specifications. An extra plug is supplied for the user's
convenience. Be sure to seal any gaps around the wire(s) going through the
plug.
Explanation of Auxiliary
Panel (continued)
Instrumentation Port
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