TeeJet 844-E Sprayer Control - Manual (Page 8)

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844-E Sprayer Control
Figure 4: Throttling Plumbing Diagram - Pressure Based System
Flow Meter
To ensure accurate readings, the flow meter (if used) must be mounted
10″ to 12″ (25-35 cm) from other pipe fittings, preferably in a vertical
position with the flow going up. It should also be mounted with the
direction of flow arrow pointing toward the boom control valves. Refer to
Figures 2 and 3.
Be sure the flow meter is plumbed so that all liquid passing through it
is routed to the booms and not back to the tank. When using three-way
boom control valves, refer to page 13 of this manual for programming
guidelines.
boom Control Valves
The Boom Control Valves are connected in tandem and centered in
front of the boom sections. See the Control Valve Instruction Manual for
mounting instructions. If using three-way valves, refer to the instruction
manual of the valves you are using for valve calibration instructions.
pressure transducer
The pressure transducer (if used) should be installed as close to
the spray tips as possible. Normally this is at the boom control valve
assembly. Refer to Figures 1 through 3. Mount the unit vertically on a
short stand pipe to help protect the sensor.
NOTE: Pressure drop, to some degree, is found in most plumbing
systems. Pressure drop is created when there is any kind of
restriction in the spray line that reduces flow rate and is quite
often produced between the boom control valve assembly and
the spray tips. If one of the boom sections on the sprayer is
always used, the pressure transducer can be installed on that
particular boom section, minimizing any potential pressure drops
between the sensor and spray tips. If the pressure drop in your
system is greater than 5 psi (0.3 bar), you should consider this
as an alternative location for the pressure transducer.
Check all components to make sure they are mounted securely to avoid
excessive vibration.