IM-P736-02 EMM Issue 3
53
VLM30 In-Line Vortex Flowmeter
Fig. 34 Hardware configuration of the digital output
Output configuration Bridge
Optoelectronic coupler output 1-2
NAMUR output 3-4
In the factory setting, the output is configured as an optoelectronic coupler output.
Note
The type of protection of the outputs remains unchanged, regardless of the output configuration.
The devices connected to the digital output must conform to the current regulations for explosion protection.
4.4 Checks prior to commissioning
The following points must be checked before commissioning:
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The power supply must be switched off.
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The power supply used must match the information on the name plate.
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Correct wiring in accordance with Electrical connections in Section 3.14 to 3.22.
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Correct grounding in accordance with Grounding in Section 3.7.
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The ambient conditions must meet the requirements set out in the specification.
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The transmitter must be installed at a location largely free of vibrations.
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The housing cover and cover lock must be sealed before powering-up the power supply.
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For devices with a remote mount design, make sure that the sensor and transmitter are assigned correctly.
It is possible to use software to configure the optional digital output as an alarm, frequency or pulse output.
It is possible to use a bridge to configure the digital output as an optoelectronic coupler output or a NAMUR
output.
A B
1 1
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