User Manual for LEVIFLOW
®
LFSC-D Flowmeters
www.levitronix.com
PL-4507-00, Rev08, DCO# 20-024
8
2.5 Overview of Parameter Configuration
shows the standard (“Default”) and possible parameter configurations of the clamp-on flowmeters.
This user manual is dealing with the standard configuration. For setting up other configurations the
Levitronix
®
Service Software
is needed. Consult the relevant manual (see reference on title page of this
manual) for more detailed description.
Block
Parameter
Option/Range
Default for
LFSC-Series
Sensors
Note
Basic
Sensor size
LFSC-xxD
xx = 05, 08, 12, 22 or 30
Automatically set.
--
Full scale
0.01
– 100 L/min
Automatically set.
Default is LFSC-08D=4 l/min, LFSC-12D=20 l/min,
LFSC-22D=80 l/min LFSC-30D=160 l/min
Damping time
0
– 25 s
2.0 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
Automatically set.
Kinematic Visc. = Dynamic Visc. / Density
Not implemented for LFSC-D series sensors.
Display
Settings
Displayed Parameter
Flow Value in L/min
Flow Value in mL/min
Volume Counter Value
Flow Value in L/min
Parameter shown on converter display.
Measurement Resolution
0 digits (#.)
1 digits (#.#)
2 digits (#.##)
3 digits (#.###)
3 digits (#.###)
Configures number of digits after decimal point
displayed.
Analog output
settings
Analog output setting
4
– 20 mA or
0
– 20 mA
4
– 20 mA
--
Digital input
settings
Digital input
Volume counter reset
Zero adjust
Set Volume Counter to zero
Zero adjust
Automates zeroing, when liquid type changes
Digital output
settings
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
-
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
-
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
