Vortex FlowMeter : VVX25

by SIKA
€0,00
SKU VVX25

Possible areas of application

SIKA VVX25 flow sensors are used for measuring water flow at low and medium measurement ranges.
One such application area is heating systems.

Description

Function

Alternate vortices rotating in opposite directions are generated behind a bluff body immersed in a flow. The vortices detach from the edges of the bluff body and form a Kármán vortex street in the fluid stream. The distance between the single vortices is constant. The frequency of the vortices flowing past a sensor depends on the flow rate and is proportional to the flow. The sensor detects these vortices which are then converted to an electrical frequency signal.

TECHNICAL FEATURES

Nominal diameter

DN 25

Flow range

7...150 l/min

Process connection

G 1¼-ISO 228 male, incl. O-rings

Accuracy

±2 % of full scale*

Pressure rating

PN 10

Temperature ranges

Medium : 5...90 °C -20...90 °C**
Ambient : 5...70 °C → Repeatability ±0,5 %, -20...5 °C → Repeatability ±1 %

Frequency output

Frequency signal, square wave, pulse duty ratio 50:50, signal current max. 20 mA

Analogue output

Output signal flow:  0.5...3.5 V
                               0...10 V or 4...20 mA

Power supply

8...30 V DC or 5 V DC (±5 %) or 12...24 VDC****

Electrical connection

5-pin plug connector M12 x 1

Degree of protection EN 60529

IP65***


Options
Recognized component ETL according to UL & CSA standards available on request

DOWNLOAD

Datasheet VVX25