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Total Control Systems TCS 682 Piston Meter

TCS682 Meter  


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DESIGN:

The TCS Model 682 Series Flow Meter is a positive displacement meter that has a unique inline design consisting of three reciprocating pistons operating within their respective measuring chambers, where each piston works in a manner similar to an automobile engine. The pistons are fitted to a wobble plate, which has a shaft extending from its upper surface and a valve pivot attached beneath it. The valve pivot drives a sliding valve from piston to piston as a known amount of product flows through each cylindrical bore, controlling the sequence of events in a smooth mechanical motion. This smooth mechanical motion is then transferred through the calibrator to the register.
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FEATURES:
  • Excellent linear accuracy - ± 0.1% over 200:1 turndown
  • Excellent repeatability - ± 0.01%
  • Wide range of flow - 0.2 to 40 GPM (0.76 to 151 LPM)
  • High tolerance to changing viscosity
  • Wide operating temperature
  • Wide fluid compatibility range
  • Industrial-grade construction
  • Proven design and reputation
  • 10 Year Warranty
 

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ACCURACY:

The TCS Model 682 Series Flow Meter provides unequaled accuracy and repeatability for a superior performance. This superior performance is supported by the National Type Evaluation Program (NTEP) Certificate of Conformance meeting the National Institute of Standards and Technology (NIST) Handbook 44 requirements. The TCS Model 682 Series Flow Meter is virtually unaffected by changing viscosities. The inline meter design allows the TCS Model 682 Series Flow Meter to have a wide operating range (0.2 to 40 GPM) and fluid compatibility that has been proven over many years of service.
  
 
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METER TYPES:

SP - Standard Petroleum: For metering refined petroleum products such as Leaded and Unleaded Gasoline, Fuel Oils, Diesel, Bio-Diesel, Kerosene, Aviation Gasoline, Vegetable Oils, Lubricating Oils, Ethylene Glycol (Anti-Freeze), etc.

AF - All Ferrous: For metering Pesticides, Nitrogen Solutions, Fertilizer, Solvents, Paints, Inks, Alcohols, Adhesives, Motor Oils, Molasses, Corn Syrup, Liquid Sugars, Deicing Fluids, etc.

SS - Stainless Steel: For metering all the same liquids as the SP and AF flow meters, however includes special handling fluids such as Nitric, Phosphorous and Glacial Acetic Acids, Anti-Icing Fluids, Vinegar, Fruit Juices and various other chemicals.

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METER CONSTRUCTION:

Model 682SP:  Body & Housing: Cast Iron
Internal Fasteners: Cast Iron and Stainless Steel
Packing Seals: Viton® and Turcon®
Piston Cups: Glass-filled TFE (Rulon)
Housing Seals: Durlon® and Teflon®

Model 682AF:  Body & Housing: Cast Iron
Internal Fasteners: Cast Iron and Stainless Steel
Packing Seals: Simriz® and Turcon®
Cups: Glass-filled TFE (Rulon)
Housing Seals: Durlon® and Teflon®

Model 682SS:  Body & Housing: 316 Stainless Steel
Internal Fasteners: 316 Stainless Steel
Packing Seals: Simriz® and Turcon®
Cups: Glass-filled TFE (Rulon)
Housing Seals: Durlon® and Teflon®

®Teflon is a registered trademark of Dupont Dow Elastomers, L.L.C.
® Viton is a registered trademark of E.I. DuPont de Nemours & Co.
® Simriz is a registered trademark of Freudenberg-NOK
® Turcon is a registered trademark of Busak+Shamban.
® Durlon is a registered trademark of Gasket Resources, Inc.     

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ACCESSORY OPTIONS:

REGISTER:  Veeder Root 5 wheel resetable with totalizer (9999.9).

PRESET:  Veeder Root 5-digit (4 whole units, plus 1 tenths 9999.9).

TICKET PRINTER:  Veeder Root Zero Start (Standard).

SHUT-OFF VALVE:  Available with Veeder Root Preset Register. Appropriate internals, gaskets and seals to each model. Note: 2-stage valve closure.

AIR ELIMINATOR:  Available with the appropriate internals, gaskets, and seals to each model.

CUTOFF SWITCH:  Available with 2 stage Veeder Root Preset Register.

TEMPERATURE COMPENSATOR:  Available with Veeder Root Electronic Register only.


TRANSMITTER TYPE:  Veeder Root

TRANSMITTER OUTPUT:  1, 10 or 100 pulses per revolution of output shaft.


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OPERATIONS & STORAGE:

FLOW RATE:  When installing a meter into a system, several factors must be considered. The flow rate of the system must be within the meter's capability. The 682 Meter can operate between 0.2 and 40 gallons per minute. The flow rate of the system is dependent upon the system's pump capabilities, and the plumbing configuration, and the product to be measured.

OPERATING PRESSURE:  Similarly, the operating pressure of the system must be considered. The 682 Meter can operate at pressures up to 150 PSI.

COMPATIBILITY:  Products with suspended solids in them will scratch the piston liners and tear the plunger cups. The liquid to be metered must also be compatible with the meter.
  • The 682-15SP is for service in petroleum applications.
  • The 682-15AF is for many industrial and agricultural products.
  • The 682-15SS is for service on products which require 316 stainless steel for proper handling
Note that the 682 Meter is not a water meter. Water has no lubricity and will drastically shorten the meter's service life.

OPERATING TEMPERATURE:  The temperature range of the product to be metered must be within the meter's range. The SP meter can operate between -20°F and 200°F. The AF and SS meters can operate between -20°F and 400°F. (A heat extension is required for temperatures above 200°F).

REGISTRATION:  The 682 Meter normally uses a Veeder Root 5-wheel resettable register in U.S. gallons. Liters, ounces, pounds or nearly any other unit of measure can be accommodated.

STORAGE INSTRUCTIONS:  Short periods of non-use of the meter (a week or less) will present no problem, provided that the meter remains full of product. For long periods of non-use, such as winter storage, the following procedure is recommended. Before long term storage, a good practice is calibration of the meter to determine that it is functioning properly.
  1. To store the meter when it is left in line, flush the system with clean water until 40-50 gallons have gone through the meter.
  2. Pump a 50% anti-freeze / 50% water solution through the entire system (100% RV antifreeze may be used instead). With the pump running, shut off a valve downstream from the meter, making sure that anti-freeze solution is present at that point. Then close an upstream valve, such that the meter remains full of anti-freeze solution.
  3. Remove the register from the meter, and lubricate the drive coupling shaft. After lubricating it, replace the register onto the meter.
  4. When starting the system after a period of storage, rechecking the meter's calibration as detailed in the calibration guide is recommended.
   
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