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Figure 6.2.
Optional CC-5 Preheater Module ready for user installation.
6.2 Installation of
Detector Preheater
Module on CC-5
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Cell temperature control is an option on all BAS CC-5 series detectors. It may be factory-in-
stalled or placed in service by the user in just a few minutes. The Preheater Module is
shown schematically in Figure 6.2. A retractable core intimately contacts 2 to 3 turns of cap-
illary tubing for thermal equilibration; the core houses a miniature heater and a solid-state
temperature sensor. Both of these devices are connected to a BAS LC-22C Temperature Con-
troller. A switch on the Preheater Module selects the power of the heating circuit, either 10
Watts or 6–7 Watts. A protective cover on the unit isolates the user from all electrical cir-
cuits for safety.
BACK PANEL
CAUTION:
TO PREVENT ELECTRICAL SHOCK, DO NOT REMOVE
COVER. NO USER SERVICEABLE PARTS INSIDE.
REFER SERVICING TO FACTORY PERSONNEL.
CONNECT ONLY TO "HEATER
OUTLET" ON BAS LC-22C
CONNECT ONLY TO
"LC-23C PROBE" ON
BAS LC-22C
1.
Open the CC-5 cover to the vertical position. Remove the temporary cover from the rear
panel (3 screws).
2.
Disconnect the tubing between the column and the detector inlet port.
NOTE: Do not make any electrical connections until step 7. Also, the cover on the Preheater
Module must remain in place for safety. Connections to line voltage are exposed when
this cover is removed.
3.
Slip the heat exchanger block through the permanent rear panel. Use the 3 screws from
step 2 and affix the module to the rear panel.
Section 6. Temperature-Stabilized Detector Operation
FRONT (INSIDE CC-5)
39
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