15
Size
Measuring range
l/min
Frequency
Hz
Pulse value
cm
3
/pulse
K-factor
pulse/litre
VSI 0.02
0 .002 … 2
1 .667 * IPF … 1666 .67 * IPF
0 .02 / IPF
50 000 * IPF
VSI 0.04
0 .004 … 4
1 .667 * IPF … 1666 .67 * IPF
0 .04 / IPF
25 000 * IPF
VSI 0.1
0 .01 … 10
1 .667 * IPF … 1666 .67 * IPF
0 .1 / IPF
10 000 * IPF
VSI 0.2
0 .02 … 18
1 .667 * IPF … 1500 .00 * IPF
0 .2 / IPF
5 000 * IPF
VSI 0.4
0 .03 … 40
1 .250 * IPF … 1666 .67 * IPF
0 .4 / IPF
2 500 * IPF
VSI 1
0 .05 … 80
0 .833 * IPF … 1333 .33 * IPF
1 / IPF
1 000 * IPF
VSI 2
0 .1 … 120
0 .833 * IPF … 1000 .00 * IPF
2 / IPF
500 * IPF
VSI 4
1 .0 … 250
4 .167 * IPF … 1041 .67 * IPF
4 / IPF
250 * IPF
Measurement accuracy
: up to 0 .3% of measurement value (with viscosity > 20 mm
2
/s)
repetition accuracy
: ± 0 .05% under the same operating conditions
Material
: Cast iron EN-GJS-400-15 (EN 1563) or
Stainless steel 1 .4305
Meter bearing
: Ball bearings or steel plain bearings (medium-dependent)
Seals
: FPM (standard), NBR, PTFE or EPDM
Max. operating pressure
: Cast iron EN-GJS-400-15 (EN 1563) 315 bar / 4500 psi
Stainless steel 1 .4305
450 bar / 6500 psi
Medium temperature
: –40 … + 120°C (–40°F … 248°F)
ambient temperature
: –20 … + 50°C (–4°F … 122°F)
Viscosity range
: 1 … 100 000 mm
2
/s
Installation position
: any
Flow direction
: any
running noise
: max . 72 db(A)
Power supply version
: 10 to 28 volts/DC
Pulse output
: 3 current limiting and short-circuit-proof high-level stages
low signal: 0 = GND; high signal: 1 = U
b
-1
Channel offset
: 90° ± 30° max .
Pulse-width repetition rate
: 1/1 ± 15° max .
Preamplifier housing
: Aluminium
Protection type
: IP 65
It is imperative that you enclose an exact description of the complaint, ob-
jection or fault, when returning the device so as to ensure a rapid and
economic repair of the flow meters and other components . Furthermore,
you must include a security sheet, which informs unambiguously, which fluid
was run with the flow meter and how dangerous this fluid is .
The maintenance of legal regulations as regards work safety, such as work-
place regulations, accident prevention regulations, and stipulations on en-
vironmental protection, waste disposal and the water management law,
obliges industrial corporations to protect their employees and other per-
sons and environment against harmful effects, when handling hazardous
materials . If further safety precautions are still necessary despite careful
emptying and cleaning of the flow meter, information on this is imperative
and must be included with the returned despatch .
When returning flow meters to VSE Volumentechnik GmbH, please note
that inspection and repair will only be performed if the
safety specifica-
tions sheet
of the utilised fluid is enclosed and the flow meters completely
cleaned and flushed . This protects our employees and simplifies our work .
If this is not observed, the despatch will be returned, chargeable to
the recipient.
• Sending back of repairs and sample devices
• Technical specifications VSI 0.02 / IPF – VSI 4 / IPF
Adjustable interpolation factors IPF: 1; 2; 3; 4; 5; 8; 10; 12; 16
