Proline Prosonic Flow 91W Installation
Endress+Hauser
9
2.5 Connecting the power supply
#
Warning!
Risk of electric shock. Components carry dangerous voltages.
• Never mount or wire the measuring device while it is c
onnected to the power supply.
• Before connecting the power supply, check the safety equipment.
• Route the power supply cable so that it is seated securely.
• Seal the cable entries and covers tight.
• When wiring Ex-certified measuring devices, all the safety instructions, wiring diagrams,
technic
al information etc. of the related Ex documentation must be observed
Ex documentation on the CD-ROM.
"
Caution!
Risk of damaging the electronic components!
Conn
ect the power supply in accordance with the connection data on the nameplate.
2.6 Mechanical preparation
The way in which the sensors are secured differs on account of the pipe nominal diameter and
the sensor type. Depending on the type of sensor, users also have the option of securing the
sensors with strapping bands or screws such that they can be later removed, or permanently
fixing the sensors in place with welded bolts or welded retainers.
Overview of possible ways to secure the various sensors:
2.6.1 Mounting the sensor holder with U-shaped screws (small nominal diameters)
For mounting on a pipe with a nominal diameter of DN 32 (1¼")
Sensors: Prosonic Flow (DN 15 to 65 / ½ to 2½")
1. Disconnect the sensor from the sensor holder.
2. Position the sensor holder on the pipe.
3. Put the U-shaped screws through the sensor hold
er and slightly lubricate the thread.
4. Screw nuts onto the U-shaped screws.
5. Set the holder to the exact position and tighten the nuts evenly.
Prosonic Flow Measuring range
Pipe nominal diameter
Secured by
91W DN 15 to 65
(½ to 2½")
DN 32 (1¼") Sensor holder with U-shaped screws
(small nominal diameters)
ä 9
DN 32 (1¼") Sensor holder with strapping bands
(small nominal diameters)
ä 10
91W DN 50 to 4000
(2 to 160")
DN 200 (8")
Strapping bands (medium nominal diameters)
ä 10
Welded bolts ä 8
DN 200 (8")
Strapping bands (large nominal diameters)
ä 13
Welded bolts ä 8
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