Bühler technologies P2. AMEX Serie Guía Rápida página 16

P2.x AMEX
DANGER
Diffusing pumped media
Explosion hazard! Formation of explosive atmosphere due to
escaping flammable gases.
When operating the sample gas pumps with media that tend
to diffuse strongly, such as hydrogen (H
tions, it is essential to note that these are not permanently
technically leak-proof due to their design. To ensure safe op-
eration, the official regulations for installation and operation
must be observed. In addition to regular leakage checks, suit-
able technical measures such as gas monitoring devices, tech-
nical ventilation, etc. must be provided depending on the in-
stallation situation.
CAUTION
Hot surface
Burning hazard
According to the product type and operation conditions, the
temperature of the housing may exceed 50 °C during opera-
tion.
Depending on the conditions at the installation site it may be
necessary to provide these areas with appropriate warning
signs.
5.1 Switching on the sample gas pump
Before switching on the unit, check that:
• the hose and electrical connections are correctly installed
and not damaged.
• no parts of the sample gas pump have been removed (e.g.
the cover).
• the gas inlet and outlet of the sample gas pump are not
closed.
• the pre-pressure is below 0.5 bar (g).
• a bypass is installed for continuous operation for throt-
tling below 150 l/h (P2.x AMEX) or 400 l/h (P2.8x AMEX).
• ambient parameters are complied with.
• rating plate information is observed.
• the voltage and frequency of the motor match the mains
values.
• electrical connections are securely connected and monit-
oring devices are connected and set correctly!
• air inlets and cooling surfaces are clean.
• precautions have been taken; earthing!
• the motor is properly secured!
• the junction box cover is closed and the cable glands
sealed properly.
• the elastomer ring gear on the coupling (only P2.4 AMEX/
P2.84 AMEX) is mounted correctly and undamaged.
• the necessary safety and monitoring devices, depending
on the application, are installed and functional (e.g. pro-
tective motor switch, pressure gauge, flame arrester, tem-
perature monitor, depending on pump type).
• the sample gas pump is sufficiently tight, as specified in
your operator specifications. If necessary, tighten the 4
cap screws to 3 Nm.
16 Bühler Technologies GmbH
When switching on the unit, check that:
5.2 Operating the sample gas pump
The sample gas pump is intended exclusively for the pumping
) in high concentra-
2
of gaseous media. It is not suitable for liquids.
The sample gas pump should be operated without pre-com-
pression. A preliminary pressure of more than 0.5 bar is not
permitted. The gas outlet must not be shut. The flow rate
must be at least 50 l/h for the P2.x AMEX and at least 200 l/h
for the P2.8x Amex pumps. In the event of throttling under 150
l/h for the P2.x AMEX and under 400 l/h for the P2.8x Amex
pumps in continuous operation, the flow rate must be regu-
lated via a bypass. In this case you should choose a version
with bypass valve.
Extreme throttling reduces the life time of the bellow.
For pumps with an integrated bypass valve, the output power
can be adjusted. Do not expend a great amount of power
when turning the valve as otherwise the valve could be dam-
aged! The turning range of the valve is around seven rota-
tions.
NOTE: Read and observe the maintenance plan!
6 Maintenance
Always observe the applicable safety- and operating regula-
tions when performing any type of maintenance. Please refer
to the original operator's manual on the included CD or online
at www.buehler-technologies.com for maintenance informa-
tion.
7 Service and Repair
Please refer to the original operator's manual on the included
CD or online at www.buehler-technologies.com for a detailed
description of the unit including information on
troubleshooting and repair.
8 Disposal
The applicable national laws must be observed when dispos-
ing of the products. Disposal must not result in a danger to
health and environment.
The crossed out wheelie bin symbol on Bühler Technolo-
gies GmbH electrical and electronic products indicates special
disposal notices within the European Union (EU).
• there is no unusual noise or vibration.
• the flow rate is not elevated or low. This can indicate a
bellow defect.
NOTICE
The crossed out wheelie bin symbol indicates
the electric and electronic products bearing
the symbol must be disposed of separate
from household waste. They must be properly
disposed of as waste electrical and electronic
equipment.
Bühler Technologies GmbH will gladly dis-
pose of your device bearing this mark. Please
send your device to the address below for this
purpose.
BX420003 ◦ 02/2024