Parr Instrument 6400 - Manual (Page 8)

6400
Calorimeter Instruction Manual
2-2
tighten slightly with a wrench. Smaller tube sizes (up to 3/16” or 4mm) take less
tightening to reach the original position than larger tube sizes.
The type of tubing and the wall thickness also has an effect on the amount of tightening
required. Plastic tubing requires a minimal amount of additional tightening while heavy
wall metal tubing may require somewhat more tightening. In general, the nut only needs
to be tightened about 1/8 turn beyond finger tight where the ferrule seats in order to
obtain a tight seal.
Over tightening the nut causes distortion (flaring) of the lip of the tube fitting where the
ferrule seats. This in turn causes the threaded portion of the body to deform. It
becomes difficult to tighten the nut by hand during a subsequent re-tightening when the
fitting body becomes distorted in this manner.
Consumables, Utilities and Power Requirements
The 6400 Calorimeter requires availability of oxygen, 99.5% purity, with CGA 540
connection, 2500 psig, maximum.
The 6400 Calorimeter requires availability of nitrogen or air, oil and water free, with CGA
580 connection, 2500 psig, maximum.
Approximately 16L of distilled water are required to fill the external pressurized rinse
tank.
Approximately 2L of tap water, with a total hardness of 85 ppm or less, are required for
filling the internal cooling reservoir.
The power requirements for the sub-assemblies of the 6400 Calorimeter are:
Calorimeter
5A @ 120 VAC
3A @ 230 VAC
Printer
(100 to 240 VAC, 50/60 Hz) 0.35 A
Electrical Connection
Plug the power line into any grounded outlet providing proper voltage that matches the
specification on the nameplate of the calorimeter. Grounding is very important not only
as a safety measure, but also to ensure satisfactory controller performance. If there is
any question about the reliability of the ground connection through the power cord, run a
separate earth ground wire to the controller chassis.
Turn the power switch to the ON position. After a short time, the Parr logo will appear on
the LCD display followed by a running description of the instrument boot sequence.
When the boot sequence is complete, the Main Menu is displayed.