Endress+Hauser FMR 231 - Short Instructions; Calibration with VU 330 or remote operation for buffer and storage tanks; Check installation; Calibration

Short Instructions
Note!
• The datum point for the empty distance "E" is always the lower face of the process
connection.
• The full distance "F" can extend up to the tip of antenna.
• For stilling wells see Chapter 6.2
Calibration with VU 330
or remote operation for
buffer and storage tanks
Note!
➀ Check installation
1. Check that the alignment mark points
to the tank wall, see also Chapter 2.1.
➁ Calibration
1. Reset
V9H5 = 333
2. Empty and full calibration
V0H1 = E
V0H2 = F
V0H3 = A (application parameter)
A = 0: Tanks up to 7 m
A = 1: Tanks up to 1.5 m
A = 2: Tanks up to 7 m, ε
r
<10
A = 3: Tanks from 7 m to 20 m
3. False echo suppression
Tank empty ( ≤ E)!
V3H0 = 4
V3H1 = (E – 0,8 m)
For partially full tanks see Chapter 6.1.
➂ Check echo quality
1. Echo qualitity
Observe when filling tank
V3H2 ≥ 10 dB
Measurement in order
V3H2 < 10
Measurement not in order:
Optimise alignment, see Chapter 7.5.
Try different nozzle position,
see Chapter 2.1.
flange
tank wall
alignment
mark points
to tank wall
nozzle min.
30 cm from
wall
thread
F
E
100%
20mA
0%
4mA
V H
V3H2 >10:
Short Instructions Micropilot FMR 231
Endress+Hauser