Inspecting And Cleaning The Breather Valve - Honeywell ENCAL 3000 Hardware Manual

8.2.9

Inspecting and cleaning the breather valve

The breather valve (also known as the
vent valve) is made of sintered metal.
It is located in the rear section of the base
and must not be sealed or blocked to
ensure compliance with the ATEX
regulations, see figure.
Step Step Step Step
1.
2.
(3.)
(4.)
The following describes action you can take if the breather valve is dirty or blocked. The
breather valve must be removed for this purpose. This is only allowed in controlled
conditions outside the Ex Zone as described in ISO/IEC 61010-1.
Step Step Step Step
1.
2a
2b
3.
4.
5.
EnCal 3000 Hardware Manual
Action: Monitoring the breather valve Action: Monitoring the breather valve Action: Monitoring the breather valve Action: Monitoring the breather valve
Check whether the openings on the breather valve or the line connected to it are
free of dirt and blockages.
If they are dirty or blocked, clean the components.
(See the following instructions.)Do not pour or spray water or cleaning
products into the breather valve.
Please notify your TAC if the breather valve cannot be cleaned and, in this case,
disconnect the gas and voltage supply.
Do not complete any further action or work until the damaged parts have been
replaced.
Action: Action: Action: Action: Cleaning the breather valve/vent line Cleaning the breather valve/vent line Cleaning the breather valve/vent line Cleaning the breather valve/vent line
Disconnect the gas and voltage supply and, if connected, detach the vent line.
If the dirt is located in the vent line, flush the line from the connection point to the
end with compressed air or a non-flammable gas, e.g. nitrogen, with the pressure
required to remove the foreign bodies.
If the dirt is located on the actual breather valve, you must unscrew the valve using a
suitable tool (tool available from Honeywell).
Clean the component without liquid cleaning products. Use a vacuum cleaner or
compressed air to remove the dirt from the outside or blow it out from the inside.
Apply Fin Super before you screw in the component so that the threads do not seize.
Screw the breather valve back into place. Ensure that the O-ring is undamaged. Only
use alternative lubricants after consulting your TAC.
Reconnect the vent line if applicable. Reconnect the gas and voltage supply.
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MAINTENANCE AND REPAIR
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