Table of Contents
Advertisement
DO NOT USE ANY OTHER PIPE OTHER THAN THE HIGH-PRESSURE PIPE SUPPLIED FOR OXYGEN
FILLING.
DO NOT USE THE HIGH-PRESSURE PIPE IF IT HAS A SHARP BEND OR KINK, DISCARD
IMMEDIATELY
•
FILL THE VESSEL WITH OXYGEN TO A MAXIMUM PRESSURE OF 3000KPA (30 bar=default).
NOTE: With some applications you may need to fill the Vessel to less than 3000KPA e.g., 1500KPA
(15 bar), however this is only applicable when you have a sample which is highly combustible,
for example powdery samples.
REMEMBER: You may fill the Vessel LESS than 3000KPA but NEVER more than 3000KPA.
3.4
OVER-PRESSURE
Over-pressure can exist in:
a) The oxygen feed line by incorrect oxygen regulator setting, or a faulty regulator. The max pressure
is 35bar (3500KPa). The filling operation will fill to the ''fill target setting" unless the time option is
selected. We do not recommend "time filling".
The CAL3K-AP has a high pressure 'CUT-OUT': It deflates the vessel pressure when it reaches 80-90bar.
This cut-out is hard wired and is in addition to the settable pressure peak limit (Command=87), which can
be turned off.
3.5
SAFE OXYGEN CONNECTIONS
Install the high-pressure oxygen pipe without any sharp bends. A 4mm pipe connection is provided. The
oxygen source connection depends on the installation (oxygen regulator or piped in oxygen). It is
important that the oxygen connection is secured to the table to prevent 'swiping' in case it is cut
accidentally.
3.6
SAFE EXHAUST GAS CONNECTION
The exhaust gases should be routed to the outside. The exhaust smells and may contain corrosive gases
depending on the sample material. A deflating cap 3K-3-22 (manual deflation) and suitable low pressure
plastic hose is provided. The CAL3K-AP has a special exhaust port and the exhaust plumbing parts are
provided as well.
Note: There is no pressure in the exhaust pipe.
DDS CALORIMETERS OPERATIONS MANUAL V1.1
2022
Digital Data Systems (Pty) Ltd.
CAL3K Advanced Bomb Calorimeters
www.ddscalorimeters.com
Website:
www.ddscalorimeters.com
3
Advertisement
Table of Contents
