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Inline Rotor Flow Measurement

Inline rotor flow measurement devices may be used for flow indication, flow switching and as flow transmitters. This simple flow measurement technique doesn't require straight pipe lengths of "run in" or "run out" at the entry or exit of the flow measurement device. Please contact us for more details.

Inline Rotor Flow Indicator

The GHM Honsberg PO flow indicator utilises a visible rotor that turns in proportion to the flow rate
  • Function: Flow indicator
  • Basic Data: PN16 bar, tmax = 60°C
  • Process Connections available: G3/8 - G1 female plastic thread
  • Flow Range: 0.1-100 l/min H2O
Inline Rotor Flow Switch / Transmitter

The GHM Honsberg RRO can be ordered as either a flow switch or as a transmitter, with a choice of current, voltage
or frequency outputs. It has a long working life due to its high quality ceramic axis and special plastic bearing.
  • Function: Flow switch or flow transmitter
  • Electrical Data: Optical sensor, supply 24 V DC, output PNP, NPN, 4-20mA, 0-10V DC 0.5A 50 VA
  • Basic Data: PN16bar , tmax = 60°C
  • Process Connections available: G3/8 - G1 female thread plastic / brass
  • Flow Range: 0.5-100 l/min H2O
Inline Rotor Flow Switch / Transmitter

The GHM Honsberg RRH can be ordered as either a flow switch or as a transmitter, with a choice of current, voltage
or frequency outputs. It has a long working life due to its high quality ceramic axis and special plastic bearing.
  • Function: Flow switch or flow transmitter
  • Electrical Data: Magnetic sensor, supply 5-30V DC or 7-12V DC, output PNP, NPN, NAMUR
  • Basic Data: PN 100bar , tmax = 100°C
  • Process Connections available: G3/8 - G1 female brass / stainless steel
  • Flow Range: 0.5-100 l/min H2O
Inline Rotor Flow Transmitter

The GHM Honsberg The flow meter consists of a rotor which is spun by the flowing medium. The rotor's rotational
speed is proportional to the flow volume per unit time. The rotor is fitted with stainless steel clamps(optionally
titanium or Hastelloy®). An inductive proximity switch records the rotational speed, which is proportional to the
flow rate.
  • Function: Flow transmitter
  • Electrical Data: Inductive proximity sensor, supply 10-30V DC output PNP, NPN, or 7-12V DC NAMUR
  • Basic Data: PN 16bar , tmax = 60°C
  • Process Connections available: G3/8 - G1 female or male PVDF / brass / stainless steel and hose nozzle ∅11 and ∅ 25 mm
  • Flow Range: up to 100 l/min H2O
FS222
Datasheet image of FS222 flowmeter

GHM logo
Flow Rate Sensor for Aggressive Chemicals with Replaceable Cartridge

The FS222 from GHM Martens Elektronik is a volumetric turbine flow sensor manufactured in PVDF for high precision
flow measurement in 6 different ranges from 0.1 up to 120 L/min. The repeatability is 0.1 % of the measured value.
The sensor is chemically resistant and optionally provided with a replaceable Cartridge (MR1-3) that minimizes
system downtime.
The maintenance is efficiently handled by simply removing and replacing the inner cartridge assembly. In a very short
time the flow meter is completely renewed.
The sensor is not suitable for measurements of liquids containing solids.
  • High chemical resistance
  • Cartridge replacement of moving parts minimises downtime
  • Transparent medium necessary, max. viscosity 15 cSt
  • 6 measuring ranges 0.1..120 L/min
  • Transistor output push-pull
  • Process pressure max. 10 bar
FS242
Datasheet image FS242 flowmeter
GHM logo
Flow Sensor / Transmitter

The Flow-Sensor FS242 from GHM Martens Elektronik is designed for continuous flow measurement of clean liquids
containing no solids.
The rotor of the FS242 turns in the liquid stream. Small magnets inside the rotor generate pulses as they pass a hall
sensor in the body of the sensor. The pulse frequency is directly proportional to the flow speed. Dependent on the
selected version a built-in electronic circuit provides PNP and NPN output or loop powered analog output 4..20 mA.
The pipe diameter should be selected to get flow speed within the range 0.3..6.0 m/s under different operating
conditions. Suitable flow fittings FF25 for different pipe sizes are available.
  • Measuring ranges from (0)0.3..6 m/s
  • Impulse output PNP/NPN or Analog output 4..20 mA, 2-wire
  • Filter function
  • Process pressure max. 10 bar
  • Medium temperature max. 60°C