BA 4510
4 Installation and connection
4.1 Installation site requirements
The inert gas measuring device must be set up in a dry and mostly dust-free location on a sturdy, level surface.
– An earthed wall socket with 10 A fuse, preferably on a separate circuit, must be installed in the immediate vicinity of the in-
stallation site to connect to the mains.
– No heat sources or equipment emitting strong magnetic fields (e.g. motors and transformers) may be located near the in-
stallation site.
– The operating position of the device is horizontal.
CAUTION
Heat built-up
Insufficient ventilation will damage the device.
Always install the device horizontal. Vertical installation is prohibited due to potential
damage to the device from heat building up.
CAUTION
Ingress of liquids
Water entering the device can cause serious damage to the device, potentially beyond
repair.
Do not place objects containing water on or in the immediate vicinity of the device!
4.2 Preparing for Operation
NOTICE
When transporting from cold environments to the installation site with higher ambient
temperatures or humidity, allow to
sit for at least two hours
to acclimate.
Install the device in the desired location.
– Install lines from the measuring point to the gas inlets and outlets. Ensure the lines are tight.
– If pressure limitation is required, install a pressure regulator with needle valve (available from the manufacturer of the
device) before the gas inlet.
– If the sample gas contains water vapour which could condensate inside the cold connection lines, the condensate must be
collected before the device. Water must not enter the hot measuring cell.
– An external flow meter should always be installed after the gas discharge (any leaks which may occur will not affect the
measurements at this point).
– Connect the device to the mains.
Connection options
The device can be connected by bypass (internal pump suctions the sample gas!) or via direct gas inlet (limit 0.1 bar overpres-
sure).
Piping material
Particularly for long transport paths and unfavourable conditions, select piping to rule out oxygen permeability. The manufac-
turer recommends the following materials depending on the measuring conditions:
Sample gas temperature low
thick PVC tubing
Higher sample gas temperature
Tygon R 3603 (supplier, e.g. novodirect Kehl)
Oxygen concentration < 1000 ppm
Stainless steel lines
11
Bühler Technologies GmbH
BE550013 ◦ 09/2018
