Thermo Electron 3940 Series, Руководство по эксплуатации и техническому обслуживанию

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IR CO
2
Option
Honeywell Recorder
(Optional)
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.
V
The Honeywell, DR 4500 Recorder is a one to four-channel
microprocessor-based, circular chart recorder.
The recorder is capable of recording both temperature and humidity and
printing alphanumeric chart data on blank heat-sensitive chart. Refer to
the Honeywell Configuration Record at the end of Section 4 and the
supplemental Honeywell Recorder manual.
This section applies to units with the IR CO
2
option only.
For the most economical use, the liquid CO
2
supply tanks should be
without siphon tubes, so that only CO
2
gas enters the incubator injection
system. Two tanks may be joined together with a manifold to ensure a
continuous CO
2
supply.
Install a two-stage pressure regulator, with indicating gauges, at the supply
cylinder outlet. The high-pressure gauge should have an indicating range
of 0 to 2000 psig to monitor tank pressure. The low-pressure gauge should
have an indicating range of 0 to 30 psig to monitor input pressure to the
incubator injection system. A suitable two-stage pressure regulator is
available.
Model 3940 Series 1-7 Thermo Electron Corporation
Section 1
Installation and Set-Up
Change the Pen
Connect the CO
2
Source