Thermo Electron NESLAB System III, Установка-Эксплуатация-Базовое обслуживание

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Electrical
Requirements
The unit construction provides protection against the risk of electric
shock by grounding appropriate metal parts. The protection may not
function unless the power cord is connected to a properly grounded
outlet. It is the user's responsibility to assure a proper ground connec-
tion is provided.
Refer to the serial number label on the rear of the unit for the specific
electrical requirements of your unit.
Ensure the voltage of the power source meets the specified voltage, ±10%.
Voltage Selection
If the unit is to be operated from a 220 to 240V source, a voltage range selector
switch inside the unit must be reset. See Maintenance and Service section for
instructions on changing the voltage selector.
Plumbing
Requirements
Before installing the unit to an instrument that previously used tap water as a
cooling fluid, flush the instrument several times to remove any rust or scale
that has built up. The manufacturer of the instrument should be able to recom-
mend a cleaning fluid for their equipment.
The plumbing connections are located on the rear of the unit and are labelled
FACILITY WATER and RECIRCULATING CLEAN FLUID. The top fittings are
outlets and the bottom fittings are inlets.
These connections are 1 inch FPT.
A basket strainer is supplied with the unit to protect the heat exchanger from
becoming clogged by dirty cooling water. Install this strainer on the FACILITY
WATER inlet. A clogged strainer can adversely affect cooling capacity. See
Section V, Facility Water Strainer for cleaning instructions.
Connect the FACILITY WATER connections to the cooling water supply and
the drain.Connect the RECIRCULATING CLEAN FLUID connections to the
instrument being cooled.
Flexible tubing, if used, should be of heavy wall or reinforced construction.
All tubing should be rated to withstand 80 psi at +40°C. Make sure all tubing
connections are securely clamped. Avoid running tubing near radiators, hot
water pipes, etc. If substantial lengths of tubing are necessary, insulation
may be required to prevent the loss of cooling capacity.