Installation | 5
Instruction Manual COBRA BA 0100 C_EN_en
11 | 36
5.2.3
Nitrogen System Connection (Optional)
DGV
NC
Description
DGV
Dilution gas valve
NC
Nitrogen connection
●
Connect the nitrogen connection (NC) to the gas supply.
Connection size:
– G1/4, NPT (NC) + 2 adapters for pipe d6,15 and 6,5mm are supplied loose.
To access the dilution gas valve (DGV):
●
Remove the two cruciform head screws at the top corners of the side cover.
●
Lift the side cover to remove it from the frame.
●
Make sure that the gas complies with the following requirements:
Gas type
Dry nitrogen or air
Gas temperature
°C
0 ... 60
Maximum gas supply pressure
bar
6
Minimum gas supply pressure
bar
2.7
Filtration
µm
5
Air quality (only for air)
Acc. To ISO 8573-1
Class 5.4.4.
Flow rate of barrier gas
(with DGV closed):
Standard liter per min-
ute
19 ... 33
Flow rate of barrier and dilution gas
(with DGV open):
Standard liter per min-
ute
25 ... 51
