Parr Instrument 1564 - Manual (Page 3)

1564 Water Recirculation System Operating Instruction Manual
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Operating Instructions
For the 1564 Water Recirculation System
Purpose
The 1564 Water Recirculation System provides a convenient means to operate a Parr
6300 Calorimeter when a constant supply of good quality tap water is not available.
This unit works in conjunction with a water cooler such as the Parr 1552 to provide a
“closed loop” and therefore a well-controlled, enclosed system.
Explanation of Symbols
I On position
O Off position
~ Alternating Current (AC)
This CAUTION symbol may be present on
the Product Instrumentation and literature. If
present on the product, the user must
consult the appropriate part of the
accompanying product literature for more
information.
ATTENTION, Electrostatic Discharge (ESD)
hazards. Observe precautions for handling
electrostatic sensitive devices.
Protective Earth (PE) terminal. Provided
for connection of the protective earth (green
or green/yellow) supply system conductor.
Chassis Ground. Identifies a connection to
the chassis or frame of the equipment shall
be bonded to Protective Earth at the source
of supply in accordance with national and
local electrical code requirements.
Earth Ground. Functional earth connection.
NOTE: This connection shall be bonded to
Protective earth at the source of supply in
accordance with national and local electrical
code requirements.