Type

VZF(A) II

Nominal diameter

DN mm

inch

15

1/2

20

3/4

25

1

40

1  1/2

50

2

Installation length

mm

165

165

190

300

350

Nominal pressure

-threaded ends

PN bar

16

16

16

16

16

-flanges

PN bar

25

25

25

25

25

Max. medium temperature

Tmax

°C

130, 180

Maximum flow rate

Qmax

l/h

600

1500

3000

9000

30000

Continuous flow rate

Qcont

l/h

400

1000

2000

6000

20000

Minimum flow rate

Qmin

l/h

20

40

75

225

750

Approx. starting flow rate

l/h

4

12

30

90

300

Max. permissible error

<±1 %, (A) ±0.5 % of actual value

Repeatability

±0.2 %, (A) ±0.1 %

Measuring chamber volume

approx.

cm3

12

36

100

330

1200

Safety filter mesh size

mm

0.400

0.400

0.400

0.800

0.800

Dirt filter max. mesh size

mm

0.100

0.100

0.250

0.250

0.250

Housing finish

enameled red RAL 3013

Weight with:

-threaded ends

approx.

2.2

2.5

4.2

17.3

-

- flanges PN 25

approx.

3.8

4.5

7.5

20.3

41.0

Smallest readable amount

Total volume

l, m3, G

Up to 3 decimal places (dynamic)

Total mass

kg, t, lb

Up to 3 decimal places (dynamic)

Digital flow rate display

(l, G, m3,
kg, t, lb) /
(s, min, h)

Up to 3 decimal places (dynamic)

Registration capacity

l, m3, G

8 digits

Registration time until overrun

Qcont
(m3)

>100 years

Outputs

Three
(2 pulse/freq., 1 4…20 mA)

freely selectable outputs are available, totally independent of each other

Pulse value for totalizer

volume or mass pulse 0…200 pulse/sec. (50 % duty cycle)

Current 4…20 mA for flowrate

volume flow, mass flow or temperature signal to 4…20 mA

Frequency for flow

volume flow, mass flow or temperature signal to frequency 0…200 Hz (50 % duty cycle)

Limiting switch

Qmin,
Qmax

minimum, maximum and hysteresis parameterized

State switch

Alarm, error state and on/off parameterized