Parr Instrument 6400 - Manual (Page 10)

6400
Calorimeter Instruction Manual
2-4
Fill the external rinse tank with about 16 liters of distilled water through the large opening
at the top of the tank. The cover for this opening is removed by lifting up on the handle,
pushing down on the lid, tilting and removing. Replace and close the cover after filling.
The two connections between the calorimeter and the 1576 Rinse Tank should be made
with two pieces of 1/8” nylon pressure hose (HX0012TB024).
Figure 2 - 6400 External Plumbing
Gas Connection
Make the connections to the oxygen supply at this time. Refer to Figure 2. 1/8” O.D.
nylon pressure hose (HX0012TB024) is used to connect the oxygen supply. The inlet
connection incorporates a flow restrictor just behind the inlet connection. When making
the oxygen connection, a back-up wrench should be placed on the restrictor to insure a
secure connection and to prevent over tightening the flow restrictor. The delivery
pressure for oxygen should be set to 450 psig. To install the regulator, unscrew the
protecting cap from the tank and inspect the threads on the tank outlet to be sure they
are clean and in good condition. Place the ball end of the regulator in the tank outlet and
draw up the union nut tightly, keeping the gages tilted slightly back from an upright
position. Open the tank valve and check for leaks. The bomb must never be filled to
more than 600 psig (40 atm).
Make the connections to the nitrogen supply at this time. Refer to Figure 2. 1/4” O.D.
nylon pressure hose (HJ0025TB035) is used to connect the nitrogen supply. When
making the nitrogen connection, a back-up wrench should be placed on the restrictor to
insure a secure connection and to prevent over tightening the flow restrictor. The
delivery pressure for nitrogen should be set at 80 psig. To install the regulator, unscrew
the protecting cap from the tank and inspect the threads on the tank outlet to be sure
they are clean and in good condition. Place the ball end of the regulator in the tank
outlet and draw up the union nut tightly, keeping the gages tilted slightly back from an
upright position. Open the tank valve and check for leaks.