Vega VEGAPULS 63 Quick setup manual - page 8
8
3 Mounting
VEGAPULS SR 68 • 4 … 20 mA/HART - two-wire
47159-EN-160215
3.2 Mounting preparations
The instrument is also available in versions with an antenna whose
diameterislargerthantheprocessfitting(thread,flange).Insuch
casestheantennamustbedisconnectedfromtheprocessfitting
before mounting.
Proceed as follows:
1. Loosenthehexagonsocketscrews(3)ontheantennasocket
withanAllenwrench(size3)
2. Remove the antenna (4)
Note:
The plastic cone may not be pulled out of the antenna socket.
3. Insert the antenna from below into the vessel socket and secure it
againstfallingoff
4. Retightentheantennawithhexagonscrewstotheantenna
socket;max.torqueseechapter"Technical data"
Note:
Theradarsensorwithrinsingairconnectionorwithantennaexten-
sionhasanotchontheantennasocketforpolarization.Thisnotch
mustbealignedwiththemarkingontheprocessfitting.
4
3
5
1
2
Fig. 3: Dismounting of the horn antenna
1 Markingontheprocessfitting
2 Marking at the antenna socket
3 Screw locking device
4 Hexagon screws
5 Antenna
Caution:
A secure hold of the antenna is only ensured with the untwist guard.
The untwist guards inserted on site must hence be used again.
Depending on temperature range and antenna material, these are
spring rings according to DIN 217 or wedge lock washers according
to DIN 25 201.
Horn antenna