Installation – KROHNE OPTIWAVE 7300C EN User Manual

Page 36

INSTALLATION

OPTIWAVE 7300 C

www.krohne.com

03/2014 - 4000172405 - HB OPTIWAVE 7300 R07 en

• Attach the antenna extensions 1 below the flange.
• Attach the antenna 2.
• Make sure the antenna extensions are fully engaged.
• Use a 3 mm Allen wrench to tighten the locking screws 3.
• If you attach more or less extensions than were initially ordered, change the antenna

extension value in Supervisor

Supervisor

Supervisor mode. Go to Supervisor > Advanced setup > Installation >

Supervisor > Advanced setup > Installation >

Antenna Extension

Antenna Extension.

Use the display screen or HART

communication (PACTware™). Antenna extension =

antenna extension length × number of extensions.

• If you changed the antenna extension value in Supervisor

Supervisor

Supervisor mode, also change the blocking

distance value. Go to Supervisor > Advanced setup > Installation > Blocking Distance

Supervisor > Advanced setup > Installation > Blocking Distance

Supervisor > Advanced setup > Installation > Blocking Distance.

Use the display screen or HART

communication (PACTware™). Minimum blocking

distance = antenna length + (antenna extension length × number of extensions) + 0.1 m / 4¨.

Equipment needed (not supplied):

• Torque wrench 200 Nm (for the H30 head of the Drop antenna sub-assembly)
• 3 mm Allen wrench

• Remove the o-rings from the plastic sachet supplied with the device. Put an o-ring 4 into the

groove at the top of each antenna extension.

• Attach the antenna extensions 1 below the flange.
• Attach the antenna 2. Tighten the antenna with a torque wrench to a torque of 200 Nm

±10 Nm.

• Make sure the antenna extensions are fully engaged.
• Use a 3 mm Allen wrench to tighten the locking screws 3.
• If you attach more or less extensions than were initially ordered, change the antenna

extension value in Supervisor

Supervisor

Supervisor mode. Go to Supervisor > Advanced setup > Installation >

Supervisor > Advanced setup > Installation >

Antenna Extension

Antenna Extension.

Drop antenna - antenna extensions

Figure 3-22: Drop antenna - how to attach antenna extensions

INFORMATION!
Drop antenna:

Drop antenna:

Drop antenna: Antenna extensions can only be attached below flanges without the PP/PTFE
flange plate option

CAUTION!
Drop antenna:

Drop antenna:

Drop antenna: Make sure that there are not more than 5 antenna extensions attached to a device
with a Drop antenna. If there are more than 5 antenna extensions, the device will not measure
correctly.
Make sure that you put an o-ring 4 into the groove at the top of each antenna extension.