EG SERIES MAGNETOSTRICTIVE LEVEL TRANSMITTER

EG SERIES MAGNETOSTRICTIVE LEVEL TRANSMITTER

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EG SERIES MAGNETOSTRICTIVE LEVEL TRANSMITTER



EG Series Magnetostrictive Level Transmitter

 

The EG Series is a magnetostrictive level transmitter used to accurately measure the changing level of liquids. The EG magnetostrictive level transmitter uses the principles of buoyancy and magnetostriction. Single and two-float designs are available.

The EG series is a magnetostrictive level transmitter using buoyancy, magnetostriction and state-of-the-art electronics technologies to accurately measure the level of a wide variety of liquids, including interface and insoluble multiple liquids with a two-float design. In the typical EG series magnetostrictive level transmitter a float, appropriately sized for the specific fluid density, is mounted on the level transmitter stem such that the float will travel up and down due to the buoyancy of the float from the fluid being measured. The float contains a magnetic element. To locate the float position the magentostrictive level transmitter electronics sends a short current pulse down a sensor wire located within the level transmitter stem with a specific frequency, setting up a magnetic field along its entire length. This field interacts immediately with the field generated by the magnet contained within the float. The overall effect is that during the brief time that the current flows, a torsional force is produced in the wire, much like a sonic vibration or wave, and travels back to the magnetostrictive level transmitter electronics. A timing circuit exists within the electronics which measures the time-of-flight (TOF) between the start of the current pulse and the return signal. In this manner the float’s location (and therefore the fluid level) is very precisely determined and presented as a level signal by the magnetostrictive level transmitter, typically 4-20mA.

  • High accuracy
  • Repeatability of 0.004% F.S.
  • Fast response time
  • 304SS, 316SS and polypropylene wetted parts
  • 4-20mA output, 2-wire loop powered
  • RS485 serial link available
  • Two-float version for insoluble liquids available
  • Level control for fast changing fluid levels
  • Level measurement of liquids in tanks and other vessels
  • OIl/water interface and dual fluid measurement (2 float version)

INDUSTRY

  • Petroleum, LNG
  • Chemical processing
  • Food and beverage
  • Pharmaceutical
  • Power utilities
  • Many others
Model No. EG31 (Standard Model) EG31 (High Temperature Model)
Application Two-wire loop power output, for Oil/Water
interface, pharmaceutical and food grade
level control.


Two-wire loop power output, high process
environment application.
Measuring range 50~5500mm 50~5500mm
Non-Linearity ±0.05% F.S. or ±1.0mm (whichever is greater) ±0.05% F.S. or ±1.0mm (whichever is greater)
Repeatability ±0.004% F.S. ±0.004% F.S.
Temp. coefficient ±100 ppm/°C ±150 ppm/°C
Operation pressure 30 BAR(Max.) 30 BAR(Max.)
Ambient temp. ­40°C ~ 85°C ­10°C ~ 85°C
Operation temp. ­40°C ~ 125°C ­40°C ~ 200°C
Temp. accuracy ±1°C ±1°C
Output 4~20mA / 2 Wire 4~20mA / 2 Wire
Maximum load (VS-18)/0.02 Ω VS=Supply voltage (VS-18)/0.02 Ω VS=Supply voltage
Digital output RS485 / HART 7.3(option) RS485 / HART 7.3(option)
Power supply 18~30V 18~30V
Housing material SUS304 (SUS316 option) SUS304 (SUS316 option)
Connection 1/2'PT 1/2'PT
Wetted material SUS304 SUS304
Enclosure IP67 (enclosure )/IP69K(probe) IP67 (enclosure )/IP69K(probe)
Model No. EG32 (High Accuracy Model) EG34 (High Accuracy Model)
Application Two-wire loop power output, comply with
high accuracy & HART demands
Four wire output,high speed active in low
voltaye 5V.
Measuring range 50~5500mm 50~5500mm
Non-Linearity 50~500mm@±100µm
501~2500mm@±0.02%F.S.
2501~5500mm@±0.04%F.S.
50~500mm@±100µm
501~2500mm@±0.02%F.S.
2501~5500mm@±0.04%F.S.
Repeatability ±0.002% F.S. ±0.002% F.S.
Temp. coefficient ±100 ppm/°C ±100 ppm/°C
Operation pressure 30 BAR(Max.) 30 BAR(Max.)
Ambient temp. ­40°C ~ 85°C ­40°C ~ 85°C
Operation temp. ­40°C ~ 125°C ­40°C ~ 125°C
Temp. accuracy ±1°C ±1°C
Output 4~20mA / 2 Wire 0~10V,10~0V,±10V,0~5V,5~0V,±5V
4~20mA,20~4mA,0~20mA,20~0mA
Maximum load (VS-18) / 0.02 Ω VS=Supply voltage (VS-5) / 0.02 Ω VS=Supply voltage
Digital output RS485,HART 7.3( option) RS485
Power supply 18~30V 5~30V
Housing material SUS304 (SUS316 option) SUS304 (SUS316 option)
Connection 1/2'PT 1/2'PT
Wetted material SUS304 SUS304
Enclosure IP67 (enclosure )/IP69K(probe) IP67 (enclosure )/IP69K(probe)
Model No. EG37A (Ex-proof High Temp. Model) EG36 (With diaplay)
Application Two-wire loop power output, explosion-proof model for hazadous environment. Two-wire loop power output, explosion proof
model with diaplay for hazadous environment.
Measuring range 50~5500mm 50~5500mm
Non-Linearity ±0.05% F.S. or ±1.0mm (whichever is greater) 50mm~4000mm±1mm
4000mm~5500mm±0.025% F.S.
Repeatability ±0.004% F.S. ±0.004% F.S.
Temp. coefficient ±150 ppm/°C ±100 ppm/°C
Operation pressure 30 BAR(Max.) 30 BAR(Max.)
Ambient temp. ­40°C ~ 85°C ­40°C ~ 85°C
Operation temp. ­40°C ~ 195°C ­40°C ~ 125°C
Temp. accuracy ±1°C ±1°C
Output 4~20mA / 2 Wire 4~20mA / 2 Wire
Maximum load (VS-18) / 0.02 Ω VS=Supply voltage (VS-16) / 0.02 Ω VS=Supply voltage
Digital output RS485/HART 7.3( option) RS485/HART 7.3( option)
Power supply 18~30V 12~30V(4-wire) ,16~30V(2-wire)
Housing material SUS304 (SUS316 option) Aluminum
Connection 1/2'PT 1/2'PT
Wetted material SUS304 SUS304
Enclosure IP67 (enclosure ) / IP69K(probe) IP67 (enclosure ) / IP69K(probe)
 


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