Binder CB 170 - Connection of the N; Control)

CB (E7) 06/2018 Page 33/174
Establishing the connection to the chamber
Connect the supplied gas hose (internal diameter 6 mm / 0.24 inches) to the pressure reducer of the
gas cylinders or central gas supply and secure the connection with the supplied hose clamp.
Connect the pre-assembled hose nozzle of the gas hose to the quick acting closure socket (11) DN 6
on the chamber rear, as described in chap. 4.4.4.
Leak test
After connecting the gas cylinder, check all gas connections for leaks (e.g. with leak spray or diluted
soap solution).
The recovery times of the gas concentrations inside the chamber after opening the door are
indicated in the technical data (chap. 25.4) and refer to a connection pressure of 2.0 bar / 29
psi. Decreasing supply pressure will result in longer recovery times.
Conversion table for gas inlet pressures, bar – psi, see chap. 25.8.
4.4.3 Connection of the N
2
gas cylinder (chamber with O
2
control)
Nitrogen (N
2
) in high concentrations is hazardous to health. It is colorless and almost odorless and
therefore practically imperceptible. Any N
2
gas that may escape must be safely led out via good room
ventilation or a suitable connection to an exhaust system.
WARNING
High concentration of N
2
.
Risk of death by suffocation.
∅ Do NOT set up chambers in non-ventilated recesses.
 Ensure technical ventilation measures.
 Observe the relevant regulations for handling N
2
.
The N
2
gas necessary for operation must have a technical grade of 99.5 %.
The gas connections must be established by qualified personnel who are trained in handling
the respective gases and familiar with the required safety measures.
The following steps are required:
Ensuring the correct N
2
output pressure
A gas supply pressure above 2.5 bar / 36 psi will result in chamber damage.
Use a pressure reducer and make sure to avoid any excessive outlet pressure when connecting the
gas hose to the chamber.
The real outlet pressure of gas cylinders, sets of gas cylinders or central gas supplies am on the
second manometer must not exceed 2.5 bar / 36 psi.