Physitemp Instruments TS4 - Manual (Page 5)

The specimen or slide is placed on the upper surface of the heat transfer plate and held in position
with the stainless steel clips provided. A sensor is mounted on the rear of the stage out of the way
of the slide area. A degree or two of difference between the top of the slide and the stage is normal
and can be allowed for.
The TS-4 stage raises the specimen 0.263” (6.7mm) above the base of the microscope. To achieve
dark field illumination, it may be necessary to adjust the motion stops on the condenser system, or
use a long working distance condenser.
Oil or water immersion objectives are not recommended as the liquid film has a high thermal con-
ductivity. Too much heat is conducted between the specimen and the lens of the microscope, mak-
ing accurate control impossible.
For inverted microscopes, consideration should be given to the working distance and end diameter
of the objective lens. This will determine the closest approach to the specimen.
FITTING THE TS-4SPD STAGE TO YOUR MICROSCOPE
The stage is comprised of a flat metal plate .080" thick which is heated or cooled by conduction
using an electronic heat pump mounted at one end on the top surface of the plate. The stage rests
on four thin felt pads which sit on the microscope's mechanical platform.
Where necessary, the plate may be secured to the mechanical platform using the spring clips pro-
vided with the microscope or any other means. Due consideration must be given to minimizing
thermal contact with the plate. Our engineering staff will assist you with a suitable method of
attachment at the following telephone number:- 973-779-5577.
In addition, please call the above number if any difficulties are encountered in operation of the
mechanical stage such as obstruction of the condenser or interference with the objective lenses.
2.7 CONNECTION TO AC POWER SUPPLY AND "SWITCH ON"
Connect AC line cord from controller to AC outlet and turn controller ON.
A buzzing noise from the water pump indicates that pump is running. Remove the tank cap and
check that water is flowing.
Power indicator lights on the controller and on the pump and tank unit will light.
IF EITHER LAMP FAILS TO LIGHT, SWITCH OFF AND CHECK FUSES.
2.8 CONNECTING RUNNING WATER SUPPLY
If you are not using the Physitemp Pump and Tank Unit, running water must be flowing through
the stage to withdraw heat from the heat exchanger.
Connect the stage to the controller as described in Sections 2.2 through 2.5.
Attach one water tube to the inlet (IN) connection on rear panel of the controller and connect it to a
tap. Attach the other water tube to the outlet (OUT) and arrange tube so that the water flows to
waste. Turn water on. It should flow at 1/2 to 1 liter per minute. If water spurts from the output,
pressure is too high.
BE SURE WATER IS FLOWING SMOOTHLY WHENEVER TS-4 IS IN OPERATION. Stage
may be damaged if water flow is inadequate.
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