INSTALLATION
3
25
OPTIFLEX 1300 C
www.krohne.com
01/2008 • 4000172301 - HB OPTIFLEX 1300 R02 en
3.5.2 General information for nozzles
CAUTION!
Follow these recommendations to make sure that the instrument measures correctly.
Figure 3-14:
Recommended nozzle dimensions
1
Recommended conditions: h
≤
d, where h is the height of the tank nozzle and d is the diameter of the tank nozzle.
2
The end of the nozzle must not have an extension into the tank. Do not install the instrument on a high nozzle.
1
2
h
d
CAUTION!
If h > d, then the top dead zone (TDZ) is:
TDZ
total
= h + TDZ
probe
, where the TDZ is measured from the face of the flange. refer to
Measurement limits
on page 142.
CAUTION!
If the instrument is installed on a high nozzle, make sure that the probe does not touch the side
of the nozzle (attach the probe end, ...).
INFORMATION!
It is possible to measure in these conditions with a minimum top dead zone. Use the snapshot
function to filter the parasite signals from long nozzles. Refer to How to use the snapshot
function to filter parasite signals that do not move
on page 97.
HB_OPTIFLEX1300_EN_D4_080428.book Page 25 Tuesday, April 29, 2008 2:47 PM