BUSCH MINK MM 1102 BV, Инструкция по эксплуатации

Страница: 10 / 56

MM 1104, 1144, 1102, 1142 B V ATEX-Version, Gas Tight
page 10
0870141675 /
190709
•
Increase the ohmic resistance to the resistance at shutdown
temperature according to the Equipment Documentation
Measurement and Safety Instrumentation (
➔
page 20)
•
Make sure that an alarm is released in the system control and
the vacuum pump is shut down automatically
•
Decrease the ohmic resistance to a value less than the
shutdown point
•
Make sure that the alarm persists
•
Make sure that the vacuum pump does not start self-acting
•
Switch on the vacuum pump again
•
Interrupt the ohmic resistance
•
Make sure that a fault indication is released in the system
control and the vacuum pump is shut down automatically
•
Reconnect the variable ohmic resistance
•
Switch on the vacuum pump again
•
Short circuit the variable ohmic resistance
•
Make sure that a fault indication is released in the system
control and the vacuum pump is shut down automatically
•
Remove the short circuit
•
Remove the variable ohmic resistance
•
Reconnect the resistance thermometer Pt100 to the
temperature transmitter (white cable to pin 3, first red cable to
pin 5, second red cable to pin 6,
➔
sketch)
•
Firmly close the temperature measurement system (g) with the
lid
Recording of Operational Parameters
As soon as the vacuum pump is operated under normal operating
conditions:
•
Measure the drive motor current and record it as reference for
future maintenance and troubleshooting work
Operating Notes
Use
The vacuum pump is intended for
−
the suction
of
−
mixtures of dry, non-aggressive and non-toxic gases and/or
dust according to the identification on the nameplate of the
vacuum pump (explanation see below).
Conveying media with a lower or higher density than air leads to an
increased thermal and/or mechanical load on the vacuum pump and
is permissible only after prior consultation with Busch.
Max. allowed temperature of the inlet gas: 40 °C
According to the directive
2014/34/EU
(“ATEX
2014
”) the
vacuum pump is made for the intended use in potentially
explosive areas according to the data given on the nameplate of
the vacuum pump and on the data given on the nameplate of
the drive motor.
This requires a separate consideration of the conveyed gas/air or
dust/air mixtures on the one side and the environment of the vacuum
pump on the other. On the nameplate of the vacuum pump the
classification with regard to the conveyed gas/air or dust/air mixtures
is marked with an “inside”, while the classification with regard to the
environment is marked with an “outside”. The classification of the
motor always refers to the environment.
In case Busch delivered the vacuum pump/ compressor without
drive motor or a replacement motor is to be mounted or for
economic reasons the vacuum pump was equipped with a simpler
motor, the following must be observed:
In case the classifications of the vacuum pump and of the drive
motor are different the inferior classification is relevant. This
means also that the vacuum pump is suitable for the placement
in a potentially explosive environment only if both the vacuum
pump, the coupling and the drive motor are approved to the
required extent for use in potentially explosive areas.
Depending on the version the approval is valid only together
with certain standard or optional components, or is limited by
the use of certain optional components, as described below
and in the chapter Operational Options / Use of Optionally
Available Equipment (
➔
page 4).
The classification on the vacuum pump is to be read as follows
(interpretations of equipment categories and zones for information
only; the relevant laws, directives and standards are literally binding;
for temperature classes and explosion groups see E. Brandes,
W.
Möller “Sicherheitstechnische Kenngrößen, Band 1: Brennbare
Flüssigkeiten und Gase”, ISBN 3–89701–745–8 (or equivalent
source)):
= Execution according to directive
2014/34/EU
inside = in this line classification for explosive atmosphere
inside the vacuum pump
WARNING
Operating a faulty vacuum pump puts the explosion safety
at risk.
Risk of explosion!
The vacuum pump must only be operated in faultless
condition. A faulty vacuum pump must immediately be
removed from service.
WARNING
The vacuum pump is designed for operation under the
conditions described below.
In case of disregard risk of explosion!
The vacuum pump must only be operated under the
conditions described below.