Buhler GAS 222.21 Ex2, Инструкция по установке и эксплуатации

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GAS 222.21 Ex2
CAUTION Fragile
The insulation is fragile. Handle with care, do not drop.
After connecting the sample gas line it must be braced and secured with the clamp.
Long sample gas lines may require additional support clamps along the way to the analysis system! Once all lines have been
connected and checked for leaks, carefully reinstall and secure the insulation.
WARNING Gas emanation
Sample gas can be harmful to the health!
Check the lines for leaks.
4.7.1 Blowback Connection
If the probe has a G3/8 blowback connection, without factory installed blowback device it will be open. The blowback connection
must be sealed gas-tight prior to start-up.
DANGER Toxic, corrosive gasses
Explosive or toxic gases can develop due to a leaking or open blowback connection.
4.7.2 Connecting the calibrating gas line (optional)
Connecting the calibrating gas line requires a Ø6 mm or Ø1/4” pipe fitting.
If the calibrating gas connection was ordered with check valve, a Ø6 mm or Ø1/4” pipe can be connected directly to the check
valve.
4.8 Connecting the Backwashing System and the Compressed Air Cylinder
(Optional)
The air lines must be connected carefully and properly, using suitable fittings.
If the probe is equipped with pressure vessel for efficient blowback (optional), a manual shut-off valve (ball valve) must be in-
stalled in the air supply, immediately upstream from the pressure vessel.
On probes used to sample flammable gas, nitrogen (inert gas) must be used for blowback. Blowback of explosive gases is prohib-
ited.
NOTICE
The operating pressure of the compressed air (inert gas) required for blowback must al-
ways be higher than the process pressure.
Required pressure differential min. 3 bar (44 psi).
DANGER Broken pressure vessel
Gas leak, danger due to flying parts.
Maximum operating pressure of the pressure vessel 10 bar (145 psi)!
The operating pressure reduces based on the operating voltage (see solenoid valve type
plate).
12 Bühler Technologies GmbH BE460048 ◦ 08/2019