Pfeiffer Vacuum OKTA 500 ATEX, Руководство по эксплуатации

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Checking the installation of the thermometer
► Check the installation dimension "X" and tighten the clamping screw if necessary.
– X =
127 mm
5.6.2 Arrange a signal evaluation for the thermometer
A restart following "zero potential" without resetting the interlock of the ignition system is
not permissible.
Device cate-
gory
EPL Result of the ignition
hazard evaluation for
the existing device
Ex “b” ignition protec-
tion system necessary
Ignition system
3 Gc No effective ignition
sources are to be ex-
pected during normal
operation
The signal must be evaluated without the
use of an ignition protection system
2 Gb No effective ignition
sources are to be ex-
pected during normal
operation
An individual system in
order to avoid ignition
sources where expected
malfunctions are expect-
ed
b1
In accordance with DIN EN ISO 80079-37, the b1 ignition protection system complies with safety re-
quirement level SIL1 and the IEC 61508 series of standards, and a "performance level" PL c in ac-
cordance with the ISO 13849 series of standards
Tbl. 10: EPL (Equipment protection level)
Procedure
► Set up the ignition protection system on the operator side in accordance with the requirements for
the device category or EPL.
► Observe the necessary ignition protection system type
Regular check
► Check the thermometer at regular intervals.
– Compare with other process temperatures.
► You can obtain information on calibration directly from Hauser .
5.7 Establishing mains connection
DANGER
Danger to life from electric shock
Contact with exposed and live elements generate an electric shock. Incorrect connection of the mains
supply leads to the risk of live housing parts that can be touched. There is a risk to life.
► Before the installation, check that the connection leads are voltage-free.
► Make sure that electrical installations are only carried out by qualified electricians.
► Provide adequate grounding for the device.
► After connection work, do a PE conductor check.
WARNING
Risk of fatal injury due to electric shock on account of incorrect installation
The device's power supply uses life-threatening voltages. Unsafe or improper installation can lead to
life-threatening situations from electric shocks obtained from working with or on the unit.
► Ensure safe integration into an emergency off safety circuit.
► Do not carry out your own conversions or modifications on the unit.
Installation
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