INSTRUCTION MANUAL S190, Rev A High Accuracy Mechanical Fuel meter FM-100 Congratulations on purchase of this World Class High Accuracy Mechanical Fuel Meter! Worldclass Mechanical Fuel Meter, extremely compact, yet easy to read Robust Aluminum Die Construction 3 Port Design which allows the meter to be fitted In Line or with the Inlet & outlet ports at Right Angle Nutating Disc Mechanism offers high tolerance to fuel contamination For use with Electric Fuel Pumps or gravity flow (with a minimum gravity head of ) Register cap can be easily removed & rotated to every 90 orientation for display Easy user re calibration Works with both Fuels & Oils Available in Litre / Gallon version in a choice of ¾ or 1 threads Resettable Batch Totalizer Reset Knob Meter n Resettable Totalizer Meter Label PARTS DESCRIPTION REFERENCE NUMBER DESCRIPTION QUANTITY 1 Meter 1 Reset Knob 1 3 Meter Label 1 1
INSTALLATION (Refer to Exploded View - Page 5 ) The meter can be installed in any position, on rigid pipelines or flexible hoses, directly on pumps or tanks. The meter can be fitted In Line or with the Inlet & outlet ports at Right Angle. Inlet & Outlet ports are marked with IN & OUT respectively. Meter Cover () can be removed and the Counter Assembly (7) can be rotated at every 90 orientation in four different positions. Meter Label (1) can be fixed before or after rotating the display. Inline Outlet Port Right Angle Outlet Port Inlet Port How to rotate the Display 1. Pull & remove the Reset Knob (3) from the meter.. Carefully remove the Cover Seal (5).. Unscrew the two Allen bolts () anticlockwise with key (size ) & remove the meter cover (). Reset Knob 5. Remove Counter Assembly (7) taking care not to damage the Housing Seal (13).. Rotate & reinstall Counter Assembly (7) in the desired position. The display can be chosen from one of the following positions. 3. Unscrew the four Allen bolts () anticlockwise with key (size ). 7. Install Cover Seal (5). First, tighten the four Allen bolts () by hand in an even & diagonal pattern as shown in the picture & finally tighten them with allen key (size ). 1 3 NOTE After installation, rotate the Total gears with fingers & ensure their smooth movement. 8. Install the meter cover (). Fix Reset Knob (3) by pushing it firmly onto the reset shaft.
METER CALIBRATION (Refer to Exploded View - Page 5 ) The meter is pre-calibrated in factory under standard conditions. A new calibration is necessary whenever there is a change in any of the following: Media Viscosity OR Flow Rate OR Operating Temperature Calibration procedure 1. Vent the air from pump, pipelines and meter by dispensing until the flow stream is full and steady.. Stop the flow by shutting off the nozzle, but let the pump run. 3. Reset the Batch Total to zero using reset knob (3).. Dispense at the desired flow rate into a graduated container whose capacity should not be lower than 0 litres (5 gallons). te Do not reduce the flow in order to reach a preset value of the calibration container. The right method is to start and stop the full flow repeatedly until the required level is obtained. 5. The Meter Value should be matched with the Container Value as given below. Important For ensuring the accuracy of measurements, the flow rate should never be kept below 0 LPM (5 GPM). If the Meter Value is higher than Container Value (i.e the meter is running fast), loosen the Calibration screw (1) anticlockwise. If the Meter Value is lower than the Container Value (i.e the meter is running slow), tighten the Calibration screw (1) clockwise. Meter Value Container Value 9 8 0 0 0 te Always fix the Calibration Screw (1) with O Ring (15) to avoid leakage.. Repeat steps (3-5) until accuracy is satisfactory. OPERATION (Refer to Exploded View - Page 5) After installation, turn the reset knob () until the batch total becomes zero. The totalizer cannot be reset in any way. Use by Gravity This meter can also be used without pump pressure in a system where flow is generated due to difference in height between fuel level and dispensing point. tes Longer pipes or nozzles reduce the flow by causing higher pressure losses. Use By Gravity is not recommended where the height of fuel is lower than feet as the flow rate will be reduced, resulting in inaccurate measurement. For better accuracy, ensure that the flow rate never falls below 0 LPM (5 GPM). On field calibration is always recommended in case of Gravity installations. MAINTENANCE (Refer to Exploded View - Page 5) This fuel meter does not require any special maintenance other than the cleaning of measuring chamber (It may get clogged sometimes due to insufficient filtration). tes The meter can be easily disassembled into its main parts without removing the meter from the pipes. Never remove meter label from the meter. Internal parts should be cleaned with a soft brush or small tool (i.e. a screwdriver). During cleaning, be careful not to damage the measuring chamber or nutating disk. A new calibration is always necessary after disassembling the measuring chamber. Before disassembling always ensure that the line pressure is released and all fluid is drained from the meter. 3
CLEANING THE MEASURING CHAMBER (Refer to Exploded View - Page 5) 1. Remove the knob (), Meter cover () & Counter Assembly (7) by following steps 1-5 from the section: How to rotate the display - on Page.. Unscrew the two screws (8) with a Phillips Screwdriver and remove Nutating Disc Assembly.. Use a soft brush to clean the Measuring Chamber (1). Be careful not to damage the plastic components. Nutating Disc Assembly 5. To reassemble, reverse the abovementioned procedure paying particular attention to: Lubricate the Seal (1) and O ring (10) with small amount of grease before installation. 3. Remove O Ring (10) and disconnect Upper Chamber (9), Lower Chamber (1) & Nutating Disk (11). O Ring First, tighten the four Allen bolts () by hand in an even & diagonal pattern as shown in the picture & finally tighten them with allen key (size ). 1 3 Upper Chamber NOTE After installation, rotate the Total gears with fingers & ensure their smooth movement. Lower Chamber Recalibrate the meter as mentioned in the section: METER CALIBRATION - on Page 3. TROUBLESHOOTING PROBLEM POSSIBLE CAUSE CORRECTIVE SOLUTION Insufficient accuracy Wrong calibration Soiled or blocked measuring chamber Recalibrate the meter as shown in section METER CALIBRA- TION - on Page 3 Clean the measuring chamber as mentioned in section CLEANING THE MEASURING CHAMBER - on Page Reduced flowrate Air in the fluid Clogged measuring chamber Blocked or soiled filter Locate and eliminate leaks in inlet lines Clean the measuring chamber as mentioned in section CLEANING THE MEASURING CHAMBER - on Page Clean the filter
EXPLODED VIEW COMPONENT LIST REFERENCE NUMBER DESCRIPTION QUANTITY 1 Meter Label 1 3 7 1 5 Allen Bolts 3 Reset Knob 1 Meter Cover 1 5 Cover Seal 1 Allen Bolts 7 Counter Assembly 1 8 Screw 9 Upper Chamber 1 10 O Ring 1 11 Nutating Disk 1 1 Lower Chamber 1 13 Housing seal 1 1 Measuring Chamber 1 15 O Ring 1 1 Calibration Screw 1 17 O Ring 1 18 Bottom Plug 1 9 8 8 10 11 1 13 1 INLET OUTLET 15 1 17 18 5
SPECIFICATIONS Meter Type Mechanical Mechanism Nutating Disk Inlet / Outlet Position In-Line or Right Angle Inlet / Outlet 3/" (F) or 1 (F) Threads BSP or NPT Flow Rate* 15 to 75 LPM ( to 0 GPM) Accuracy +/- 1% Repeatability +/- 1% Max. Working Pressure 50 PSI (3.5 BAR) Burst Pressure 35 PSI (30 BAR) Pressure Drop 3 PSI (0. BAR) Working Temperature range -10 C to 5 C (1 F to 150 F) Max. Resettable Batch Total 9999 Litres or 999.9 Gallons Max. n Resettable Totalizer 999999 Litres or 99999.9 Gallons Least Count / Resolution 0.10 Litres or 0.10 Gallons Filter/ Screen Included Max. Viscosity of Media 000 cst Option to Recalibrate by User Yes Nr. Of positions in which display can be rotated Protective Shroud on Meter Weights & Measures Approved Calibration Certificate Included Water Resistance Protection by meter label For use with Electric Fuel Pumps Yes For use with Gravity Flow Yes (minimum ' head required) * For better accuracy, the flow rate should not be allowed to fall below 0 LPM (5 GPM) If solid particles enter the measuring chamber the correct working of the nutating disk may be affected. Always filter the fluid by installing a filter on the meter inlet. WETTED COMPONENTS Aluminium, Poly Butyl Terephthalate (PBT), Viton, Steel RECOMMENDED USE Diesel, Gasoline, Biodiesel, Low to medium viscosity oils DO NOT USE WITH Water based media etc. Groz Engineering Tools (P) Ltd. Groz Net Industries Village Kherki Daula, National Highway-8 Gurgaon-1001, Haryana, INDIA TEL +91.1.8.7700 / 1.050 FAX +91.1.8798 / 1. FAX (USA) +1.509.71.788 FAX (UK) +.870.11.185 E-MAIL info@groz-tools.com URL www.groz-tools.com The Groz name, Groz logo and the mark are trademarks of Groz Engineering Tools (P) Ltd. India