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15 

Troubleshooting Reference Guide 

Symptom 

Probable Cause 

Solution 

No output is 
displayed or 
registered 

Defective magnetic pickup 

Refer to the Checking the 
Magnetic Pickup section. 

Foreign matter obstructing the 
turbine flowmeter rotor 

Refer to the Checking the 
Turbine Flowmeter section. 

Defective turbine flowmeter 
internals 

Refer to the Checking the 
Turbine Flowmeter section. 

Defective turbine flowmeter 
cable assembly 

Refer to the Checking the 
Cable Assembly section. 

Defective electronic/readout 
device 

Refer to the Checking the 
Electronics section. 

More volume/ 
output than 
displayed or 
registered. 

Rotor may drag due to foreign 
matter obstruction 

Refer to the Checking the 
Turbine Flowmeter section. 

Magnetic pickup not screwed 
down all the way into the 
turbine flowmeter body, 
causing it not to detect all the 
rotor blades as they pass. 

Screw  the  magnetic  pickup  all 
the  way  down  into  the  turbine 
flowmeter  body.  Hand-tighten 
only. 

Turbine flowmeter installed 
backwards. 

Install the turbine flowmeter in 
accordance with the process 
flow direction. 

Turbine flowmeter rotor 
installed backwards. 

Install  the  turbine  flowmeter 
rotor  in  accordance  with  the 
process flow direction. 

K-factor is too high in 
electronic/readout device. 

Verify K-factor used. K-factor 
should be decreased. 

Less volume/ 
output than 
displayed or 
registered. 

Caused by entrained air in the 
process line. 

Install an air eliminator 
upstream of turbine flowmeter. 

K-factor is too low in 
electronic/readout device. 

Verify K-factor used. K-factor 
should be increased. 

 
 

 

Summary of Contents for G Series

Page 1: ...GNP GNT GSCP GFP GFT G SERIES TURBINES Industrial and Chemical Models GFP GFT GNP GNT GSCP 11 2021 921977 01 Rev E ...

Page 2: ...cause we provide customers with innovative reliable safe timely and competitively priced products We pride ourselves in conducting our business with integrity and professionalism We are proud to provide you with a quality product and the support you need to obtain years of safe depend able service President Great Plains Industries Inc TABLE OF CONTENTS General Information 2 Installation 4 Maintena...

Page 3: ...nd barrel etc Turbine Sizing FLOMEC G Series Turbines are identified by the internal diameter of the inlet and outlet Model 050 in 0 6 6 0 GPM Model 051 in 0 8 6 0 GPM Model 075 in 1 6 16 GPM Model 075E in 2 3 23 GPM Model 100 1 in 6 7 67 GPM Model 150 1 in 17 7 177 GPM Model 200 2 in 33 330 GPM Turbine flowmeters should be sized in accordance to the actual flowrate and not the process pipe size F...

Page 4: ...sure that the new or correct K factor is entered into the readout device NOTE The K factor is printed on the turbine body The calibration report included with the product provides several points along the flow curve Initial Start Up Turbine flowmeters can be installed in the horizontal or vertical position When installing a turbine flowmeter in the vertical position it is important that the direct...

Page 5: ...the process line 4 Using a small screwdriver or similar tool insert it into the radius notch of the retaining ring pull away from the groove and up removing the retaining ring from one end of the turbine flowmeter This will allow the support to slide out of the turbine flowmeter body Remove the rotor before proceeding to the other support NOTE To remove the other support simply repeat this operati...

Page 6: ... of the turbine flowmeter This is important when installing the rotor and also denotes the direction in which the turbine flowmeter was calibrated NOTE FLOMEC rotors are tapered on one end except and The tapered end should be installed on the inlet side see Figure 1 The and rotors are marked with a point on the hub and should be installed with the marked side of the rotor hub on the inlet side 1 I...

Page 7: ...eter to ensure the rotor spins freely NOTE Installation of the replacement kit is complete and the turbine flowmeter can be reinstalled into the process line 5 Install the magnetic pickup HAND TIGHTEN ONLY NOTE Be sure to use the proper magnetic pickup cable and connector for the application 6 Enter the new K factor supplied with the replacement kit into the electronic readout device Refer to the ...

Page 8: ...58032 in 1 6 16 GPM GSCP 80758032 in E 2 3 23 GPM GNT 80768031 GNP 80768032 in E 2 3 23 GPM GFT 80768031 GFP 80768032 in E 2 3 23 GPM GSCP 80768032 1 in 6 7 67 GPM GNT 81008031 GNP 81008032 1 in 6 7 67 GPM GFT 81008031 GFP 81008032 1 in 6 7 67 GPM GSCP 81008032 1 in 17 7 177 GPM GNT 81508031 GNP 81508032 1 in 17 7 177 GPM GFT 81508031 GFP 81508032 1 in 17 7 177 GPM GSCP 81508032 2 in 33 330 GPM GN...

Page 9: ...ount electronics Temperature range 100 F to 250 F Sine wave output None Low Drag 81006000 Use with Model 051 Remote mount electronics Temperature range 450 F to 450 F Sine wave output S High Temp Low Drag 81007001 Use with Model 051 Remote mount electronics Temperature range 450 F to 800 F Sine wave output None RF Digital 81005002 Use with Models 050 or 051 Temperature range 40 F to 248 F Square w...

Page 10: ... Digital or RF 3 Conductor Type H Water Resistant 2 Conductor Type T Hi Temperature 2 Conductor 8 inch 83001001 83002001 83003001 83004001 5 feet 83001005 83002005 83003005 83004005 10 feet 83001010 83002010 83003010 83004010 15 feet 83001015 83002015 83003015 83004015 20 feet 83001020 83002020 83003020 83004020 25 feet 83001025 83002025 83003025 83004025 30 feet 83001030 83002030 83003030 8300403...

Page 11: ...00 Hz 1 in 17 7 177 67 0 670 100 1000 Hz 2 in 33 330 124 9 1249 100 1000 Hz DIMENSIONS Size NPT Flanged Tri Clover Clamp Height Length Height Length Height Length in 2 562 2 750 2 562 2 750 in 2 562 2 750 2 562 2 750 in 2 625 3 250 2 00 5 50 2 625 3 250 in E 2 625 3 250 2 00 5 50 2 625 3 250 1 in 2 75 3 562 2 125 5 50 2 75 3 562 1 in 3 00 4 594 2 50 6 00 3 00 4 594 2 in 3 25 6 063 3 00 6 50 3 25 6...

Page 12: ...it from the turbine flowmeter and using an ohm meter measure the ohm resistance by placing the leads of the ohm meter on each pin of the magnetic pickup Refer to Figure 7 If the ohmmeter reads 1400 ohms 20 then the magnetic pickup is good and should NOT be replaced If the ohmmeter reads less than 1000 ohms install a new magnetic pickup DO NOT throw the old magnetic pickup away Failure of the magne...

Page 13: ... ridges irregular spots If such signs are evident it is a strong possibility that the turbine flowmeter body is damaged and the installation of a new replacement kit is NOT recommended When a new replacement kit is installed inside a damaged turbine flowmeter body the internals will be ruined after a short period of operation and will have to be discarded In the event it is uncertain whether the t...

Page 14: ...the frequency oscillator and the cable that is supplied connect it to the electronic readout device the same as you would a turbine flowmeter cable assembly Once the frequency oscillator is connected if no output is displayed on the electronic readout device check to ensure that the power is on the fuses are good and the correct K factor is dialed programmed into the electronic readout device Afte...

Page 15: ...the Checking the Turbine Flowmeter section Magnetic pickup not screwed down all the way into the turbine flowmeter body causing it not to detect all the rotor blades as they pass Screw the magnetic pickup all the way down into the turbine flowmeter body Hand tighten only Turbine flowmeter installed backwards Install the turbine flowmeter in accordance with the process flow direction Turbine flowme...

Page 16: ...put to 2 in Approx 100 mV 100 Hz to 1 0 Volt r m s 1000 Hz Maximum Overage Up to 125 of maximum flowrate for intermittent periods Standard Materials of Construction Housing 316 Stainless Steel Rotor CD4MCu Stainless Steel Shaft Tungsten Carbide standard 316 Stainless Steel optional Rotor Supports 316 Stainless Steel Sleeve Bearings Tungsten Carbide standard PTFE optional Thrust Bearings Tungsten C...

Page 17: ...ute Viscosity in Centipoise SG Specific Gravity PH O Pressure Drop at the Operating Flowrate from the Chart GPM Hz x 60 K factor Hz GPM x K factor 60 K factor Hz x 60 GPM Pulses Per Litre K factor 3 785 Pulses Per Barrel K factor x 42 Pulses Per Cubic Meter K factor 003785 Pulses Per Pound K factor Pounds Per Gallon GPM Pounds Per Hour 500 x S G Pounds Per Hour 500 x S G x GPM Pounds Per Gallon S ...

Page 18: ...parts It may be possible to diagnose the trouble and identify needed parts in a telephone call GPI can also inform you of any special handling requirements you will need to follow covering the transportation and handling of equipment that has been used to transfer hazardous or flammable liquids CAUTION Do not return turbines without specific authority from the GPI Customer Service Department Due t...

Page 19: ..._______ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ __...

Page 20: ...her than in accordance with the manufacturer s operating instructions To make a claim against this warranty or for technical assistance or repair contact your FLOMEC distributor or contact FLOMEC at one of the locations below In North or South America contact Great Plains Industries Inc 5252 East 36th St North Wichita KS 67220 3205 USA 888 996 3837 www flomecmeters com North America Outside North ...

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