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FP (E1.1) 03/2019 page 62/90
General information for safe handling of gas cylinders:
• Store and use gas cylinders only in well ventilated areas.
• Open the gas cylinder valve slowly to avoid pressure surges
• Secure gas cylinders during storage and use against falling (chaining).
• Transport gas cylinders with a cylinder cart, do not carry, roll, or throw them
•
Always close the valve even with apparently empty cylinders; screw on the cap when not in
use. Return gas cylinders with the valve closed
• Do not open gas cylinders by force. Mark them when damaged
• Observe relevant regulations for dealing with gas cylinders.
Connect a flexible gas tube to the gas hose connection adapter (diameter 10mm), which is used for gas
inlet, and secure it with hose clamps (hose and hose clamps are not enclosed). There is a constant gas
flow after establishing the connection.
After connecting the gas cylinder, check all gas connections for leaks (e.g. with leak spray or
diluted soap solution).
Use a pressure reducer and make sure to avoid any excessive outlet pressure when connecting the gas
hose to the oven.
The chamber is not completely gas-tight. Inert gases from inside the chamber can escape into
the surrounding atmosphere.
Inert gases in high concentrations are hazardous to health. They are colorless and almost odorless and
therefore practically imperceptible. Inhalation of inert gases can cause drowsiness up to respiratory
arrest. When the O
2
content of the air decreases below 18%, there is risk of death from lack of oxygen.
Any gas that might escape has to be led out via good room ventilation or a suitable exhaust system.
WARNING
High concentration of inert gas.
Risk of death by suffocation.
∅ Do NOT set up chambers in non-ventilated recesses.
Ensure technical ventilation measures.
Respect the relevant regulations for handling these gases.
Inert gases, which are heavier than air, may accumulate in low-lying areas of the installation
site.
The “Mostly gas-tight version” reduces the loss of gas.
Setting (sample values):
If you want to flush the chamber with an air exchange rate of 1 per hour, set the flow rate on the
pressure reducer according to the interior volume.
FP 53 with 53 l internal volume: The flow rate corresponding to 53 l / h is 0.9 l / min.
FP 115 with 115 l internal volume: The flow rate corresponding to 115 l / h is 1.9 l / min.
Without the “Mostly gas-tight version” option, you may need to slightly increase the flow rate.
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