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2.1 Intended 

use 

 
The magnetic inductive flow sensor FMG90 must only be used for measuring and metering 
liquids with a minimum conductivity of 20 

μ

S/cm. 

 

WARNING! No safety component! 

 

The magnetic inductive flow sensor of the series FMG90 are not safety components in 
accordance with Directive 2006-42-EC (Machine Directive).  

ª

 Never use the FMG90 as a safety component. 

 

The operational safety of the device supplied is only guaranteed within its intended use. The 
specified limits (see Technical Data "10") may under no circumstances be exceeded.  
Before installing the device, check that the wetted materials of the device are compatible with 
the media being used (see Materials Table "10.1"). 

 

Measuring tube empty (or partially filled). / Conductivity too low. 
The green LED may blink irregularly if the measuring tube of the FMG90 is empty or 
partially filled or if the conductivity of the fluid being used is too low. Random pulses will 
be present at the output, but they do not represent an actual flow. 

 

ª

 Ensure that the measuring tube of the FMG90 is always completely filled (see 

Installation Instructions "5.1"). 

ª

 Ensure that the conductivity of the fluid is at least 20 

μ

S/cm. 

 

 
 

2.1 

Exclusion of liability 

 
 
We accept no liability for any damage or malfunctions resulting from incorrect installation, 
inappropriate use of the device or failure to follow the instructions in this operating manual. 

Содержание FMG90 Series

Страница 1: ...omega com e mail info omega com For latest product manuals omegamanual info FMG90 Series Electromagnetic Flow Meter Shop online at User sGuide...

Страница 2: ......

Страница 3: ...12 7 1 Commissioning 12 7 2 Measuring operation 12 8 Maintenance 12 9 Disassembly and disposal 13 10Technical data 14 10 1 Materials table 15 10 2 Pressure drop 15 10 3 Dimensions 16 Copyright notice...

Страница 4: ...l injuries that can lead to health defects or cause considerable damage to property CAUTION Electric current This sign indicates dangers which could arise from handling of electric current CAUTION Mat...

Страница 5: ...sign and independence from the intake and discharge sections allows the FMG90 to be used under a variety of conditions Components c Sensor housing The sensor housing consists of plastic and has the IP...

Страница 6: ...d materials of the device are compatible with the media being used see Materials Table 10 1 Measuring tube empty or partially filled Conductivity too low The green LED may blink irregularly if the mea...

Страница 7: ...the FMG90 must hold a relevant qualification This can be based on training or relevant tuition The personnel must be aware of this operating manual and have access to it at all times The electrical c...

Страница 8: ...luid to flow unhindered through the measuring tube Function The magnetic inductive flow sensor functions according to the induction principle The measuring tube is located in a magnetic field B If an...

Страница 9: ...is only suitable for application in completely filled pipe systems As a matter of principle magnetic inductive flow sensors are widely independent from the flow profile An inlet section is not absolu...

Страница 10: ...ecessary IMPORTANT NOTICES Only use suitable gaskets for installation Observe the flow direction indicated on the type plate Observe the mounting dimensions To ensure the best possible measuring accur...

Страница 11: ...on and wiring Screw the coupling socket of the connection cable to the plug of the FMG90 Tighten the knurled nut of the coupling socket with a maximum torque of 1 Nm Connect the connection cables acco...

Страница 12: ...s operational The green LED blinks according to the frequency of the output signal This blinking is not perceptible to the human eye at frequencies above 30 to 40 Hz so the green LED appears to be con...

Страница 13: ...mbly Prior to disassembly ensure that the equipment is switched off and is in a safe and de energised state the equipment is depressurised and has cooled down Disassembly Remove the electrical connect...

Страница 14: ...tion ml pulse 0 25 1 0 2 5 5 0 10 0 12 5 Square wave signal duty cycle 50 50 Signal shape can be connected as PNP or NPN open collector Signal current 25 mA Electrical characteristics Supply voltage 2...

Страница 15: ...Sensor housing ABS Measuring tube PVDF X Process connections PVDF X O ring EPDM X Electrodes Stainless steel 316L X Grounding rings Stainless steel 316L X 10 2 Pressure drop FMG 91 FMG 92 FMG 91 FMG 9...

Страница 16: ...95 Type L1 L2 D1 D2 FMG 91 4 0 02 0 83 0 01 14 NPT 0 31 FMG 92 4 0 02 0 83 0 01 14 NPT 0 31 FMG 93 4 02 0 02 0 83 0 01 14 NPT 0 55 FMG 94 4 41 0 02 0 98 0 01 1 11 5 NPT 0 71 FMG 95 4 41 0 02 0 98 0 01...

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Страница 18: ...M 5204 1112...

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