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Safety instructions 

 
Before you install the FMG90, read through this operating manual carefully. If the 
instructions contained within it are not followed, in particular the safety guidelines, this 
could result in danger for people, the environment, and the device and the system it is 

connected to. 

 

 

The FMG90 correspond to the state-of-the-art technology. This concerns the accuracy, the 
operating mode and the safe operation of the device. 
In order to guarantee that the device operates safely, the operator must act competently and 
be conscious of safety issues.  
Omega provides support for the use of its products either personally or via relevant literature. 
The customer verifies that our product is fit for purpose based on our technical information. 
The customer performs customer- and application-specific tests to ensure that the product is 
suitable for the intended use. With this verification all hazards and risks are transferred to our 
customers; our warranty is not valid. 

 

Qualified personnel: 

 

The personnel who are charged for the installation, operation and maintenance of 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 connection should only be carried out by a fully qualified electrician. 

 

General safety instructions: 

 

In all work, the existing national regulations for accident prevention and safety in the 
workplace must be complied with. Any internal regulations of the operator must also be 
complied with, even if these are not mentioned in this manual. 

 

Degree of protection according to EN 60529: 
Please ensure that the ambient conditions at the site of use does not exceed the 
requirements for the stated protection rating (see Technical Data "10"). 

 

Only use the FMG90 if it is in perfect condition. Damaged or faulty devices must be 
checked without delay and, if necessary, replaced. 

 

When fitting, connecting and removing the FMG90 use only suitable appropriate tools. 

 

Do not remove or obliterate type plates or other markings on the device, as otherwise the 
warranty is rendered null and void. 

 

Special safety instructions: 

(Further) Warnings that are specifically relevant to individual operating procedures or activities 
can be found at the beginning of the relevant sections of this operating manual. 

Summary of Contents for FMG 91

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

Page 2: ......

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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