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19
Size
Measuring range
l/min
Frequency
Hz
Pulse value
cm
3
/pulse
K-factor
pulse/litre
VSI 10
1 .5 … 525
7 .50 * IPF … 2625 .67 * IPF
3 .333 / IPF
300 * IPF
Measurement accuracy
: up to 0 .5% 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)
Meter bearing
: Ball bearings or steel plain bearings (medium-dependent)
Weight
: 70 kg without subplate
Seals
: FPM (standard), NBR, PTFE or EPDM
Max. operating pressure
: 420 bar/6000 psi
Medium temperature
: –40 … + 120°C (–40°F … 248°F)
ambient temperature
: –20 … + 50°C (–4°F … 122°F)
Viscosity range
: 5 … 100 000 mm
2
/s
Installation position
: any
Flow direction
: any
running noise
: db(A)
Power supply version
: 10 to 28 volts/DC
Frequency range
: 0 … 2625 Hz
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
• Technical specifications VSI 10 / IPF
Adjustable interpolation factors IPF: 1; 2; 3; 4; 5; 8; 10; 12; 16
• Flow response curves VSI 10
Flow Q
Fl
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