Density Meters

Density Meters – Heinrichs 2020-12-14T09:53:41+01:00

Density meter

heinrichs density meter - dwf

Model: DWF

  • No bypass required
  • For liquids and foams
  • Large spectrum of special materials

The Heinrichs sensor DWF is used for density metering of liquid media in pipes.
Can be used in all industries by using corrosion resistant wetted parts


Robust, mechanical measurement with magnetic transmission of measured values
Clear 90° scale

  • In-line density measurement of liquids and foams
  • linear scale
  • No bypass required
  • Wetted parts: Hastelloy or Titanium, PFA- / PTFE-lining (option)
  • Steam tracing
  • Can be installed in hazardous area

Materials: Stainless steel, Hastelloy (other materials on request)

Process connection: DN 25 ASME 1?/ DN 50 ASME 2?)
flange acc. EN 1092, ASME B16.5, DIN2512,
(others on request)

Nominal pressure: PN 15, ASME Cl150 (higher pressure rates up to 400 bar optional)

Process temperature: -20°C up to +150°C
Ambient temperature: -20°C up to +80°C

Ingress protection: IP 65/67 (EN60529)

Density range: 700 g/l – 1900 g/l
Measuring span: 50 g/l – 600 g/l
lFlow range: 2500 l/h / 5000 l/h 10000 l/h

* Reference condition: according to IEC 770: Water at 20°C C

Display: Aluminum (enamel finish) or stainless steel
outputs: inductive switch
inductive switch (safety function))
micro switch (others on request)

Ambient temperature: -40°C up to +80°C (without switch))
-40°C up to +65°C (with switch)

Transmitter ES:
Power supply: 14 – 30 VDC
Outputs: passive, galvanically isolated
Analog: 4-20 mA
Binary 1 and 2: Ui=30 V, Ii=20mA, Pi=100 mW
Input binary: Counter reset (only for ES with counter module)

Ambient temperature: -40°C up to +70°C

Ingress protection: IP 20 (EN60529

Approvals and certificates

Explosion protection:
Sensor: BVS 03 ATEX H/B 112
Display: DMT 00 ATEX E075
Ignition category: II 2G EEX ia IIC T6
CE-Marking: Explosion Protection Directive 94/9/EC
Electromagnetic compatibility: EMC-Directive 89/336/EEC


HART-protocol and 2 NAMUR-switches
HART-protocol and 1 NAMUR-switch / pulse output
HART-protocol and counter module
Foundation Fieldbus