Index
A
Alarm 31 - 32, 40
All-weather cover 14
Ambient temperature 14
Analogue output 13, 30, 31
4 mA and 20 mA values 31
output damping 30
output on alarm 31
signal range 30
Application 6
B
Bus address and termination 18
C
Calibration
»dry« for hydrostatic sensors 28
horizontal cylinders 25
level 24
level measurement with calibration correction 37 - 38
upright cylinders 24
Certificates 3
Commulog VU 260 Z 18, 19, 21
Controls 19 - 22
D
Deltapilot sensors 44
Density correction 28 - 29, 38
E
Electronic inserts 16
Environment 11
Error messages 41
External limit switch 39
G
General specifications 10
I
Input characteristics 10
Installation 12 - 18
K
Keyboard and display 20
L
Level limit switching 39
Level measurement 23 - 34
Level measurement with level switching 39
Linearisation 46 - 47
Deletion of value pairs 27
horizontal cylindrical tanks 25, 46
semi-automatic with controlled filling 27
tanks with conical outlet 47
Location 14
M
Max. fail-safe mode 33
Measured value display 34
Measuring system 7
Mechanical specifications 11
Min. fail-safe mode 33
Mounting 14
O
Operating matrix 19
Operating mode 9, 36, 39
Operating parameters back cover
Output characteristics 10 - 11
P
Parameter lock 34
Post mounting 14
Power supply 18
Probes and sensors 13
R
Rackbus RS-485 15, 18, 22
Relays 9, 15, 32, 40
alarm relay 40
assignment 32
fail-safe mode 32
hysteresis 32
min. and max. fail-safe mode 33
operating modes 32
relay on alarm 32
switch point 32
Remote operation 18
Repairs 45
S
Safety 3
Sensor cable 16
Sensor constants 12, 23, 44
Sensors, exchange of 44
Simulated operation 43
T
Technical data 10
Terminal resistance 18
Trouble-shooting 40 - 45
W
Warning 4, 40
Wiring
Rackbus RS-485 18
Sensors 16
Trans mi tt er 1 5
Prolevel FMC 661 Index
48 Endress+Hauser
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