User Manual for LEVIFLOW
®
LFS Flowmeters
www.levitronix.com
PL-4502-00, Rev11, DCO# 18-107
10
2.4.2 Overview of Parameter Configuration
(“Default”) and possible parameter configurations of the flowmeters. This user
manual is dealing with the standard configuration. For setting up other configurations the
LEVIFLOW
®
Configuration Software
is needed. C
onsult the “
Configuration-SW User Manual
” (
Levitronix
Doc.# PL-4501-
00
) for more detailed description.
Block
Parameter
Option/Range
Default
Note
Basic
Sensor size
LFS-xx
xx = 04, 08, 20, 50, 80, 008
xx = 008,4,8,20,50,80
(accord. Sensor size)
--
Full scale
0.01
– 100 L/min
(accord. Sensor size)
Default Values:
LFS-008 = 0.8 L/min, LFS-04 = 4 L/min, LFS-08 = 8 L/min
LFS-20 = 20 L/min, LFS-50 = 50 L/min, LFS-80 = 80 L/min
Damping time
0
– 25 s
2 s
Low-pass filter with
T
f
dB
=
2
1
3
Low cutoff
0.0
– 25.0 %
2 %
Flow cut to 0 below this percentage of full-scale
If cutoff 0% is chosen, negative flow becomes visible
Kinematic Viscosity
0.00
– 99.99 cSt
1 cSt
Kinematic Visc. = Dynamic Visc. / Density
Display Settings
Displayed Parameter
Flow Value in L/min
Flow Value in mL/min
Volume Counter Value
Flow Value in L/min
Parameter shown in converter display
Measurement Resolution
0 digits (#.)
1 digits (#.#)
2 digits (#.##)
3 digits (#.###)
3 digits (#.###)
Analog output
settings
(Not applicable for
LFC-6C)
Analog output setting
4
– 20 mA or
0
– 20 mA
4
– 20 mA
--
Digital input
settings
(Not applicable for
LFC-6C)
Digital input
Volume counter reset
Zero adjust
Set Volume Counter to zero
Zero adjust
Automates zeroing, when liquid type changes
Digital output
settings
(Not applicable for
LFC-6C)
Digital output 1
Flow alarm High
Flow alarm Low
Vol. counter alarm H
Vol. counter alarm HH
Vol. counter Pulse
Measurement Error
Flow as Frequency
Bubble detect
Custom Output
Flow alarm High
- Upper flow limit detection
- Lower flow limit detection
- Flow volume detection first value (one-time)
- Flow volume detection second value
- Pulse per volume
- Error signal (empty sensor etc.)
- Flow as Frequency output (100% of full-scale = 1 kHz)
- Bubble detected signal
- Bits of equipment status can be OR-ed on the output
Digital output 2
Flow alarm Low
Flow alarm
Hysteresis (Flow alarm)
0
– 20 %
0 %
Can be used to get tolerance to noise.
Alarm high
0
– 125 %
105 %
Alarm setting In percentage of full-scale.
Contact type
N.O. = normally open
N.C. = normally closed
N.O. = norm. open
For digital outputs of LFC-1C, LFC-1C-F4, LFC-6CIO.
Alarm low
-10
– 125 %
-5 %
Alarm setting In percentage of full-scale.
Contact type
N.O. = normally open
N.C. = normally closed
N.O. = norm. open
For digital outputs of LFC-1C, LFC-1C-F4, LFC-6CIO.
Volume
counter
settings
Volume counter enable
(activation box)
activated, not activated
not activated
These are settings for volume detection (integration of
flow).
Has to be active for the options “ Vol. Counter Alarm H”,
“Vol. Counter Alarm HH” and “Vol. Counter Pulse”.
Volume counter base unit
1 mL, 1 L, 1 m3
1 mL
Multiplier factor
0.01, 0.1, 10, 100, 1000
0.1
Volume counter pulse length
0.5, 50, 100ms
0.5 ms
Volume counter alarm enable
(activation box)
activated, not activated
not active
-> Settings for one-time volume detection.
-
> Volume = “Volume unit” x “Multiplier factor” x “Vol.
Counter Alarm
H“ value”
-
> Has to be active for the options “Vol. Counter Alarm
H”, “Vol. Counter Alarm HH”.
Value
(Volume counter alarm H)
0
– 999999
--
Contact type (H)
N.O. = normally open
N.C. = normally closed
N.O. = norm. open
Value
(Volume counter alarm HH)
0
– 999999
--
Contact type (HH)
N.O. = normally open
N.C. = normally closed
N.O. = norm. open
Measurement
Error Settings
Instant Measurement Error
Ignore Time
0-99 s
10s
During this time instant measurement errors are ignored.
If an instant measurement error stays active for longer
time than this time, measurement error arises.
Flow Level on Measurement
Error
0%, -25, 125%
Hold
0 %
Signal level of analog output and flow, when
measurement error arises
Bubble Detection
Settings
Bubble Detect Hold Time
0
– 99 s
0 s
For bubble or particle detection in the process
Table 8: Overview of parameters
