Mounting The Measuring Device - Endress+Hauser Dosimag Operating Instructions Manual

Installation
5.2

Mounting the measuring device

WARNING
L
Danger due to improper process sealing!
‣
Ensure that the inside diameters of the gaskets are greater than or equal to that of the
process connections and piping.
‣
Ensure that the gaskets are clean and undamaged.
‣
Install the gaskets correctly.
5.2.1 Installation
The sensor is supplied to order, with or without pre-installed process connections. Ready-
mounted process connections are fixed to the sensor with 4 hexagonal-headed bolts.
The sensor may need to be supported or additionally secured depending on the
application and pipe length.
5.2.2 Welding the sensor into the pipe (welding connections)
WARNING
L
Risk of destroying the electronics!
‣
Make sure that the welding system is not grounded via the sensor or transmitter.
1. Tack-weld the sensor to secure it in the pipe. A suitable welding aid can be ordered
separately as an accessory .
2. Release the screws on the process connection flange and remove the sensor, along with
the seal, from the pipe.
3. Weld the process connection into the pipe.
4. Reinstall the sensor in the pipe, and in doing so make sure that the seal is clean and in
the right position.
• If thin-walled pipes carrying food are welded correctly, the seal is not damaged by the
heat even when mounted. However, it is recommended to disassemble the sensor and
seal.
• It must be possible to open the pipe by approx. 8 mm (0.31 in) in total to permit
disassembly.
5.2.3 Cleaning with pigs
It is essential to take the internal diameters of the measuring tube and process connection
into account when cleaning with pigs. All the dimensions and lengths of the sensor and
transmitter are provided in the separate "Technical Information" document.
5.2.4 Seals
When mounting the process connections, make sure that the seals in question are dry, clean,
undamaged and correctly centered.
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Dosimag
Endress+Hauser