Discontinued – Max Machinery 710 Wall Mount User Manual
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General Description
The Max 710 Fuel Measurement System is
engineered to provide a solution to the many
inherent problems involved in the accurate
measurement of vehicle fuel consumption.
These include: vapor elimination, high return
fuel temperatures, pressure regulation and
overall plumbing considerations. The Max 710 is
equipped with a Model 213 Flow Meter and can
measure up to 175 lbs/hr (1800 cc/min). These
systems are compatible with gasoline, diesel
fuels, or alcohol.
The Max 710 is enclosed in a wall mount cabinet
consisting of a fuel conditioning/metering
package and an optional electronic display.
The fuel conditioner contains a filter, vapor
eliminator, level controller, flow meter, heat
exchanger, two pumps, two regulators, pressure
relief valves, several pressure gauges and three
RTD’s. An optional display is available based
on the Max Model 121 indicator and provides
flow rate indication, a totalizer, temperature/
specific gravity display and an analog output
proportional to the rate display.
In operation, the transfer pump draws fuel
from the vehicle tank through the FROM TANK
connector. A 20 PSI regulator maintains a
steady pressure for the vapor eliminator and
flow meter. The excess fuel is used for the heat
exchanger cooling, prior to being returned to
the vehicle fuel tank via the To Tank connector.
The purpose of the transfer pump is to provide
optimum pressure to operate the flow meter and
to overcome the fluid resistance of the system.
The level controller combines fuel from the flow
meter and cooled return fuel from the engine
via the FROM ENGINE CONNECTOR. At this
point, a second fuel pump can be activated by
placing the front panel toggle switch in the “On”
position. This pump is generally used when the
vehicle’s fuel pump is either bypassed or located
before the Max 710 Unit (typically in the tank).
The fuel pressure to the engine (To Engine
connector) is regulated by a 125 PSI regulator,
(Supply Pressure Adjust) and monitored on the
Supply pressure gauge. This pressure is set as
required by the engine fuel pump, carburetor or
injector. The Fuel returning from the engine is
monitored on the Return Pressure gauge.
Separate manuals are available for many of
the individual components of the 710 System,
and can be found on our website at www.
maxmachinery.com.
Specifications
Range
213 Flow Meter 0.12 to 175 lbs/hr (1 to 1800 cc/min.)
Model Options
Fuel-to-Fuel Heat Exchanger
Coolant-to-Fuel Heat Exchanger
Accuracy
Gasoline/Diesel/Alcohol
+/- 0.2% or better
Fuel Compatibility
710-2XX
Gas, Diesel, Alcohol
Engine Type
Carbureted or Fuel Injected
Temperature Range
Operating
14° to 140°F (-10° to 60°C)
Storage
-14° to 160°F (-26° to 70°C)
Power Requirements
12Vdc @ 15mA
Size (approximate)
24 x 30 x 8 inches (61x76x20 cm)
Weight (approximate)
90 lbs. (40.8 kg)
Discontinued