Connecting Water Hoses; Extending The Usb Cable - SBIG STX Series Operating Manual

1.8. Connecting water hoses

maximum benefit from
below ambient temperature with ice or refrigeration but it
can be done so long as you monitor the dew point. Water
at ambient temperature is an effective heat conductor and
a constant flow of water will carry away enough heat
from the heat exchanger that further cooling of the water
supply will result in little gain. Cooling the water supply
too much may cool the camera well below the dew point
so that moisture forms on the inside surface of the case or
the outside surface of the CCD chamber window.
If do not have a way to supply water to the camera, the 12VDC pond pump and
tubing shown can be purchased at most hardware stores.
STX Series cameras are equipped with a heat exchanger that
allows water circulation if conditions require additional coolin
of the CCD. The cameras may be operated with or without
water circulation. No special steps are necessary to use wate
circulation other than connection of a water supply. The camera
comes with two water hose fittings (pictured in the inset at left)
that accept a hose with an inside diameter of 1/4th inch. Very
little water pressure is needed for additional cooling. Only
enough pressure to maintain a constant flow is required to ge
the water circulation. Also, it is usually not necessary to cool the water
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