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Screw Gear Flow Meter for High Viscosity Liquids

Item# FHG-1112

Screw Gear Flow Meter for High Viscosity Liquids FHG-1112 FHG-1112
  • Pulsation-Free Measurement
  • Lowest Pressure Loss for High Viscosity
  • Short Response Time
  • Up to 1,000,000 Centistoke Viscosity
  • High Accuracy and Wide Ranges
Body Material
Maximum Operating Pressure
Features
Minimum Flow Rate
Maximum Flow Rate
See All Options
Quantity Price each
1-4 $6,080.00
5-9 $5,776.00
10-24 $5,654.40
25-49 $5,411.20
50-99 $5,289.60
100+ $5,168.00

In stock

Lead Time ( If not in Stock): 8 weeks

Product Specs

  • Accuracy Value ±0.05% with same operating conditions
  • Measurement Type Flow
  • Maximum Liquid Temperature (Liquid Temp Range?) 120 {C} (248 {F})
  • Media Type High Viscosity Liquids
  • Minimum Liquid Temperature -30 {C} (-22 {F})
  • Repeatability ±0.05% with same operating conditions
  • Retransmission/Analog Output 10 to 28 Vdc
  • Supply Frequency 0 to 100 kHz
  • Supply Voltage 10 to 28 Vdc
  • Viscosity Range 1 to 1.000.000 cSt

FHG-1000 flow meters measure the flow rate based on the screw pump principle. A pair of rotors fitted precisely into the housing constitutes the measuring element. An integrated gear and non-contact signal pick-up system detects the rotations of the measuring element and converts them to digital pulses. Together with the housing walls, the rotor edges form closed measuring chambers in which the fluid is transported from the inlet to the outlet side. The fluid volume put through within one main rotor rotation is the rotation volume, which is divided by the sensing gear and digitized, processed and output in the sensor module.

Sensor System Explanation
The non-contact pick-up system consists of two GMR-bridges (sin/cos), which are located in a sensor unit in cartridge design. It detects the movement of the sensing gear and routes the sin/cos-signals to the preamplifier electronics. The preamplifier electronics digitize and amplify the sensor signals and multiply them by a high-resolution interpolator using adjustable settings. The square wave signals are bidirectional and can be utilized by any evaluating instrument as well as computers and PLC-controls. The resolution is selectable in steps from factor 1 to 128. In case of an 1-channel evaluation, a separate directional signal is available. An adjustable pulse filter can offset and suppress negative flows (e.g. generated by vibrations) while still in the device. The frequency of the output signals is proportional to the flow (volume flow) and depends on the respective flow meter size. The frequency range is from 0 to 100 kHz. The preamplifier is protected against reverse polarity and incorrect connection. It is suitable for fluid temperatures of -30 to 120°C (-22 to 248°F) and is mounted directly on the flow meter.

Flow meter Selection
For the trouble-free, safe and reliable operation of the flow meters, selecting the correct type and size is critical. Because of the wide variety of applications and flow meter designs, the technical data in the specifications are of a general nature. Certain properties of the devices depend on type, size, and measurement range as well as the liquid to be measured. Please contact the Omega Flow Department for detailed information about the appropriate flow meter for your particular application.

Electronics
A special sensor system detects any movement of the pair of rotors or of the liquid column. For this purpose, a precision gear connected to a shaft of the rotor pair is scanned by a special magneto-resistive sensor. The scanning sensor includes two GMR-bridges (sin/cos) and is housed in a removable stainless steel cartridge case together with a signal conditioning and amplifier unit. The downstream electronics unit features a highresolution sin/cos-interpolator, which is adjustable with 10 different resolution factors. Furthermore, a programmable signal filter is available as well, which can offset unwanted negative pulse sequences up to an adjustable degree. In addition, a signal for a separate direction detection, e.g. in case of a 1-channel evaluation, is provided by the electronics. Optionally, this output can be used for the detection of excess flows and temperatures.

Product Number
Description
Price
 
Screw Gear Flow Meter for High Viscosity Liquids
$85.00
10 In Stock

en-US
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