Switching On The Sample Gas Pump; Operating The Sample Gas Pump - Bühler technologies P2.3C Guía Rápida

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P2.3C, P2.4C
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 device, ensure that:
• the hose and electrical connections are undamaged and
correctly installed,
• no parts of the sample gas pump have been dismantled
(e.g. cover),
• the gas inlet and outlet of the sample gas pump is not
shut,
• the preliminary pressure is under 0.5 bar,
• in the event of throttling under 150 l/h in continuous op-
eration, a bypass is available,
• the ambient parameters are complied with,
• information on rating plates is observed,
• the voltage and frequency of the motor correspond to
those of the network,
• the electrical connections are tightly fastened and the
monitoring devices have been connected and configured
correctly!
• air inlet openings and cooling surfaces are clean,
• protective measures have been carried out; earthing!
• the motor is secured correctly,
• the terminal box cover is closed and the cable entry points
have been properly sealed,
• the elastomer sprocket of the coupling (P2.4C only) is cor-
rectly installed and undamaged,
• depending on the operating mode, the necessary protect-
ive and monitoring devices are present and functional
(depending on the type of pump, e.g. motor circuit
breaker, manometer, flame arrestor, temperature monit-
oring).
When switching the sample gas pump on make sure that
• no abnormal sounds or vibrations occur.
• the flow rate is neither too low nor too high. This would
indicate a cracked bellow.

5.2 Operating the sample gas pump

The sample gas pump is intended exclusively for the pumping
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 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. In the event of throttling under 150 l/h
14
Bühler Technologies GmbH
in continuous operation, the flow rate must be regulated via a
bypass. In this case you should choose a version with bypass
valve.
NOTICE
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.
BX420022 ◦ 04/2021

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