Clarke PRO-MIST DURA User manual

INSTRUCTION
MANUAL AND
PARTS LIST
PRO-MIST DURA®
WITH SMARTFLOW II

B
PRO-MIST DURA® ULV
TABLE OF CONTENTS
WARRANTY INFORMATION 1
PROMIST DURA INTRO LETTER 3
INSTALLATION 4 - 18
DESCRIPTION 4
CONFIGURATION OPTIONS 5
INSTALLATION 6 - 16
UNCRATE AND REMOVE
FROM SKID 6
MOUNT TO VEHICLE 7 - 8
SUPPLYING POWER 9
MOUNTING A BATTERY FOR
SELF-CONTAINED OPERATION
10
CONNECTING THE PROMIST
DURA TO YOUR VEHICLE'S
ELECTRICAL SYSTEM
11 - 16
OPERATION 17
FLUSHING 18
SPRAYER MAINTENANCE 19 - 23
SLEEVE REMOVAL
AND REPLACEMENT
19 - 21
CLEANING 22
SPRAY HEAD & AUDIBLE
DETECTION FOR SPRAY HEAD
IMBALANCE
23
PARTS BOOK AND COMPONENTS 24 - 56
TABLE OF CONTENTS 24
TOOL LIST FOR SPRAYER
MAINTENANCE
25
ELECTRICAL SCHEMATIC 26
WIRE CONNECTIONS 27
BLOWER MOTOR ASSEMBLY 28 - 29
SPRAY HEAD ASSEMBLY 30 - 31
FORMULATION TANK ASSEMBLY 32 - 33
PLUMBING PATH/FLUID FLOW 34
PLUMBING FLUID
PATH COMPONENTS
35 - 38
PUMP/ELECTRICAL CABINET 39 - 45
MAIN ASSEMBLY 46 - 48
BLOWER TUBE ASSEMBLY 49 - 52
AVAILABLE ACCESSORIES 53 - 55
SPARE PARTS KIT (EXPANDED) 56
SPARE PARTS KIT (MINI) 56
PARTS LIST 57 - 58

C
PRO-MIST DURA® ULV
TABLE OF CONTENTS
SmartFlow II Manual
SMARTFLOW II DESCRIPTION 61 - 62
TOTAL COUNTERS OVERVIEW 64
TOTAL COUNTERS 64
VOLUME 65
AREA 65
DISTANCE 66
TIME 66
HOURS 66
SMARTFLOW II CONTROL
PANEL FUNCTIONS
67 - 87
LCD DISPLAY 68
ALARMS 69
WARNING LED 69
ROTARY DIAL FUNCTIONS 70 - 79
TOGGLE SWITCHES 80 - 85
PUSH BUTTONS 86 - 87
CALIBRATION 88 - 102
CALIBRATION OVERVIEW 89
HOW TO ENTER THE
CALIBRATE MODE
90 - 91
CALIBRATION FACTORS 92 - 99
HOW TO CALIBRATE 100
RELOADING CALIBRATION
DEFAULTS
101 - 102
SPECIAL CALIBRATION MODES 103 - 110
1. UNITS 106
2. VEHICLE ID 106
3. WIDTH 106
4. CONTROL SPEED 106
5. FILL TANK SIZE 107
6. TANK ALARM SET POINT 108
7. MAX SNOOZE COUNT 109
8. MAINTENANCE ALERT 110
OPERATION 112 - 118
STARTUP/SHUTDOWN 112
POWER UP MESSAGES 113 - 114
SELECTING THE APPLICATION
RATE
115
CLEARING COUNTERS 116
ADJUSTING TANK VOLUME 117
RESETTING AFTER A
MAINTENANCE ALERT
SHUT DOWN
118
TROUBLESHOOTING 119 - 129
ALARM INDICATORS 120
ERROR CODES 121 - 125
ERR 1 121 - 124
ERR 2 124
ERR 3 125
ERR 4 125
MESSAGE/WARNINGS 126 - 129
CONSOLE DISPLAY MESSAGE/
WARNINGS
126 - 127
NO LIGHT OPERATION 128
NO CONSOLE POWER 128
WARNING LED &
AUDIBLE ALARM
129
LOW VOLTAGE DETECTION 129

1
PRO-MIST DURA® ULV
Warranty Information
Your Pro-Mist Dura is warranted to the original
purchaser by Clarke against defects in workmanship
or materials for a period of one (1) year from the
date of purchase from Clarke. If any warranted
component fails within that period, return the
component to Clarke, shipping prepaid, for repair
or replacement at its option. This warranty does not
include incidental damages arising from machine
failure, from incorrect use, or from improper or
neglect of maintenance.
This warranty covers only the repair or replacement
of warranted defective parts. It does not cover
components which normally wear out or are used
up during operation or through time. In the latter
category are items such as tubing, fittings and
rubber mountings.
Parts which prove to be defective will be repaired
or replaced free of charge FOB factory, provided:
1. The component was properly installed,
as per enclosed manual, given reasonable care,
protected from wet weather conditions and
freezing temperatures and used for its
intended purpose.
2. No repairs have been attempted by anyone other
than factory personnel. No alterations or adjustments
have been made to the electrical controls.
3. The component (s) have been returned
properly packaged, insured, and with
transportation charges prepaid.
4. Upon examination, Clarke personnel are satisfied
that the defects were not caused by abuse, or
subjection to conditions that violate the system
specifications or neglect.
5. When the component is plugged into a vehicle
electrical system, a volt check confirms that the
vehicle’s alternator is meeting automotive
standards 13.8 v to 14.8 v (15 v max) at the
alternator. This is required for both the
component and vehicle reliability.
All returns must have an authorization
number issued by Clarke (1-800-323-5727).
Please call ahead to save time and cost
of having items returned. Thank you!
WARRANTY
Enter the information below for record
keeping purposes.
Serial Number_____________________________
Manufacturing Date _________________________
Firmware Version______________________
Note:
The Firmware Version will quickly flash in the data
display window of the SmartFlow II console as it is
booting up. (r will be displayed, followed by a letter.
e.g. r F, designating Firmware Version F)

2
PRO-MIST DURA® ULV
Important Notes to Help You Get the Most
out of Your Sprayer and Maintain the Warranty
1. Read and understand this instruction booklet before
operating your sprayer. If you have questions about
operating the sprayer, proper applications, or
insecticides, call Clarke and ask for technical support.
2. Use only insecticides that are specifically registered
by the appropriate state and federal agencies for
ultra-low-volume (ULV) adult mosquito and/or
fly control.
3. Read and follow the insecticide label. It is a federal
oense to use any pesticide in a manner not in
accordance with its labeling. This includes
directives on the use of protective clothing and
safety equipment.
4. To obtain the best results with a ULV sprayer, the
operator must be knowledgeable of space spraying
concepts. Many insecticide labels list specific training
and/or certification requirements for users. Consult
Clarke or your nearest cooperative extension agent
for information.
5. Operate the sprayer only when:
• The vehicle is moving in a forward direction.
• Winds are less than 8 m.p.h.
• Insects are exposed to spray (evening or early
morning is the best time for most species).
6. Operate the sprayer only when the safety guard is
in place. If the sleeve assembly becomes damaged
and flies apart while the safety guard is not in place.
Serious physical injury could result. Always wear
safety glasses as well as ear protection when
working near a running sprayer.
7. Using the Special Spanner puller tool, remove Hub
and Sleeve Assembly from Spray Head Assembly
before storing sprayer for extended periods of time.
Failure to follow this instruction may result in sprayer
damage. Clean Hub and Sleeve Assembly and store
in a sealed bag or container.
8. The spray head motor is a precision high speed
device. Pay special attention to avoid any forceful
impacts or stress on the spray head motor shaft.
Use a small amount of common automotive type
of anti-seize grease on the threads of the motor
shaft, hub and retaining ring. Always use the
Spanner Puller Tool as described in the sleeve
removal and replacement section.
9. Maintaining the Disposable Sleeve is a key part
of insuring proper machine performance as well as
extending spray head motor life. Sleeve life can vary
dramatically depending on type of formulation and
dispensing rate. Always monitor the condition of the
sleeve. The Maintenance Alert is a programmable
countdown timer that can assist in managing this
required maintenance interval. See the Maintenance
Alert Count Down timer section for details on
this feature.
FOREWARD

3
PRO-MIST DURA® ULV
To Our Pro-Mist Dura Customers:
The Pro-Mist Dura ULV Sprayer is an extremely durable, yet lightweight, all-electric Ultra-Low Volume aerosol space
sprayer that can provide wide-area outdoor adult mosquito and fly control when properly mounted on a moving
vehicle and used with the correct insecticide. It produces a nearly invisible mist that is formed from billions of
individual droplets. The mist moves with natural air currents to provide excellent ULV space spraying success.
Frequently, excellent flying insect control can be accomplished with an application rate of just 1/2” ounce of liquid
per acre. The Pro-Mist Dura creates precise droplets by introducing liquid into a porous sleeve that is rotated at high
speed by an electric brushless motor. The resulting aerosol is dispersed using an efficient axial fan.
Electric power can be advantageous over gasoline engine power for aerial production and dispersal, especially
when the rising cost of fuel is considered. Installation and removal of the Pro-Mist Dura from the vehicle on which it
is carried requires minimum of eort because it has no heavy engine or compressor. In addition to its light weight,
the Pro-Mist Dura ULV Sprayer features low energy requirements and low noise during operation. It has the ability
to operate continuously for 2-3 hours on one charged high-quality 12 volt deep-cycle marine battery. When it’s
connected to a vehicle with a sucient charging system the Promist Dura can operate continuously. A vehicle
installation kit is available for proper installation.
The SmartFlow II console mounted near the operator provides control for nearly all sprayer functions.
INTRODUCTION LETTER

4
PRO-MIST DURA® ULV
PRO-MIST DURA
Description
The Pro-Mist Dura ULV Sprayer consists of four
systems:
1. the Spray Head (atomizing unit),
2. the Blower,
3. the Pumping system, and
4. the SmartFlow II Control System, (SMII).
The spray head produces a controlled droplet spectrum
from liquid introduced inside the rapidly rotating porous
sleeve. Centrifugal force drives the liquid through the
pores to the outside surface of the sleeve where droplets
are formed. Though ULV space spraying for mosquito
and fly control is performed from a moving vehicle and
depends on proper utilization of natural air currents, a
blower is provided to assist the movement of spray mist
away from the vehicle on which the sprayer is mounted.
The proportional flow pump delivers the insecticide to
the spray head.
The SMII Control system allows the operator to
control systems and ensure that they work together
properly. The SMII Console is mounted close to the
vehicle operator.
SMII Control Console
Electrical Control Cabinet
Includes pumping system
Spray Head
Blower
INSTALLATION

5
PRO-MIST DURA® ULV
Pro-Mist Dura Configuration Options
The Pro-Mist Dura has been designed as a modular
system and can be easily configured to meet your
preference. Flexibility is made simple by connector
shafts that let you mix and match separate pads
housing the spray head, formulation tank/s and battery.
Connector shafts let you easily join together or take
apart pads in 4 inch increments. Configure in a single
row running the length of the truck, horizontal across
the back or in an L-shape.
Blower stand base can be separated from the tank base
and can be reconfigured to change overall footprint.
Bases can be configured to include an expansion
battery base, dual 5 gallon tank or an additional
15 gallon tank base.
INSTALLATION

6
PRO-MIST DURA® ULV
Uncrate and Remove from Skid
CAUTION: NO IMPACT TO SPRAY HEAD
1A
2A
3A
4A
INSTALLATION

7
PRO-MIST DURA® ULV
Mount to Vehicle
The Pro-Mist Dura ULV Sprayer can be conveniently
mounted on a variety of trucks and utility vehicles. To
easily move and lift the machine we recommend either
placing a 2x4 through the handles on the black blower
housing-column or a strap or small pipe through the
holes on top of this same column.
For instance, on a pick-up truck, the sprayer should be
mounted within a few inches of the tailgate. By doing
this, the outlet of the blower will be positioned above
and slightly behind the tailgate.
This is important because many moving vehicles create a
vacuum behind them. The downdraft may pull the mist
toward the ground if the discharge is too low or too far
forward. The elevated position of the spray head on the
Pro-Mist Dura prevents this from happening on most
trucks even when the sprayer is mounted down in the
truck bed. Smooth dispersal of spray may be further
enhanced by removing the tailgate on vehicles so
equipped.
Normally, the sprayer is positioned with the blower
outlet aimed 45 ° up and to the rear of the vehicle.
Certain ULV insecticide labels require this orientation.
For flying insect control, regardless of the insecticide,
little or no advantage will be gained by aiming the
blower to one side or the other.
The Pro-Mist Dura sprayer may be subjected to great
stress on vehicles that are driven on rough road surfaces.
Secure the sprayer with nuts, bolts and lock washers at
all four corners. Lag screws are not adequate fasteners.
We recommend using 5/16 bolts with a flat washer. An
option is to use pretreated wood beams (4 x 4) and bolt
to bed of vehicle. The Pro-Mist Dura warranty is voided
if the unit is damaged due to improper mounting.
1B
2B
INSTALLATION
IN GENERAL, IT SHOULD BE MOUNTED AS FAR
AS POSSIBLE TO THE REAR OF THE VEHICLE.

8
PRO-MIST DURA® ULV
Mount to Vehicle (Cont.)
3B
4B
5B
INSTALLATION

9
PRO-MIST DURA® ULV
Supplying Power
The Pro-Mist Dura ULV Sprayer can be powered for a few hours running solely on its own fully charged 12 Volt Deep
Cycle Battery, (e.g. a high quality ACM battery or deep cycle marine battery) mounted on the Blower Stand Base.
However it is strongly recommended that if possible the unit be connected to your vehicle’s high-quality 12 Volt
Charging System. Either way, a deep cycle marine battery must be mounted on the Pro-Mist Dura Blower stand base.
A Clarke Install Kit is available for easy installation to your vehicle's battery.
INSTALL KIT MUST BE ORDERED SEPERATELY. ORDER PART NO. 333815
A Clarke Install Kit is available for easy installation
to your vehicle's battery. This kit includes cables, vehicle
circuit breaker, terminals, and screw lugs.
Part No. 333815 (SL/Standard Length)
OR
Part No. 343228 (XL/Extended Cab)
INSTALLATION

10
PRO-MIST DURA® ULV
4C
6C
5C
2C
1C
3C
Mounting a Battery on the Pro-Mist Dura for
Self-Contained Operation
You can expect a couple hours of operation from one
fully charged medium sized (size 24M )12 volt Deep
Cycle battery. An expansion battery base option is
available to expand and increase the machine's on board
battery capacity. Using the sprayer with its own battery
allows the sprayer to be quickly mounted on any vehicle,
even vehicles without an electrical system. We strongly
recommend the use of a deep-cycle, hi-capacity, high
quality RV/Marine battery. This type of battery will
best handle the stress of repeated charging and
discharging. Eventually the battery will no longer have
the required power to maintain high speed rotation. The
machine will then shut down the
spray head.
The Battery Box located on the Blower Stand Base
is designed to hold up to a size “24M” marine battery.
A short power cord with plug is provided to connect
this onboard battery to the blower stand power plug.
Be careful to observe proper polarity. The Red lead is
connected to the positive (+) battery terminal, and
the black lead is connected to the negative (-)
battery terminal, Observe the Polarity markings
on the plugs housing.
INSTALLATION
CAUTION: Do not connect until final step of
electrical installation.

11
PRO-MIST DURA® ULV
Connecting the Pro-Mist Dura to Your
Vehicle's Electrical System
For continuous operation, we recommend that the
Pro-Mist Dura be connected directly to the vehicle's
battery/charging system. An electrical Installation kit
is available from Clarke for this configuration. This kit
contains vehicle circuit breaker, terminals, and screw lug.
If you intend to supply your own cabling and circuit
protection components, we recommend a minimum
of 6 awg multi-stranded copper power cable with a 60
amp inline fuse located near the sprayers onboard
battery as well as a 50 amp circuit breaker located near
the vehicles power source. This is extremely important to
protect against electrical short and fire. It is critical that
both ends of the power cable are protected.
The sprayer requires a rate of charge of 30 amps
at 13 vdc (measured at the sprayer’s battery) in order
to keep that battery well charged during continuous
spraying. A high output automotive alternator
(60 amps or more) usually provides enough current
to allow continuous operation of the sprayer without
additional charging of the battery after spraying has
been completed.
Regardless of how you power your Pro-Mist Dura,
the SMII Console can be mounted in any convenient
location within easy reach of the operator. Take care not
to obstruct the driver’s view forward or view of vehicles
instruments. The control cable plugs into the back of
the SMII Console at one end and into the Pump box
at the other end. Now you may turn on the
Vehicle Breaker.
Parts Required to complete Vehicle Installation
• Vehicle Installation Kit P/N 333815 (SL) or 343228
(XL) or comparable
• Deep Cycle Marine 12 Volt Battery
Tools Required to Complete Vehicle Installation
• Screw Driver
• Wrench Set up to 5/8”
• Crimping Tool for Insulated Ring Lugs wire size
AWG6.
• Electric Hand Drill and power source.
• A 3/16 inch Drill Bit (for mounting breaker bracket).
• A 2” Hole Saw that fits your Hand Drill.
• A Sharp Knife.
Where to Install The Power Cable on
the Vehicle
You may choose to run the power Cable out through
a hole in the front panel of the truck bed, in thru the
rear panel of the cab, under the seat, out thru the fire
wall into the engine compartment, and over to the
vehicle battery.
Or you may choose to run the Power Cable out through
a hole in the front panel of the truck bed, down under
the cab, up into the engine compartment, and then over
to the vehicle battery. With the first choice you could
also bring the Pro-Mist Operator Control Unit cable
into the cab thru the same holes as the power cable
provided the hole is large enough to accept both cables,
which would be a 2-inch hole.
INSTALLATION
STEP-BY-STEP IMAGES ON PAGES 12 - 16.
NOTE: Vehicle Installation cables and breakers
MUST meet Clarke systems vehicle installation
specifications or Pro-Mist Dura Warranty will
be voided.
NOTE: Repeated bending or pinching of cable
can cause cable failure.

12
PRO-MIST DURA® ULV
Connecting the Pro-Mist Dura to Your Vehicle's Electrical System (Cont.)
Steps below depict connecting the ProMist Dura to Vehicle's electrical system, using the Clarke Electrical
Installation Kit.
1D
Disconnect the long red lead from the
50 Amp breaker.
2D
Mount the 50 amp breaker very close to the
positive battery terminal. (Connection to the
breaker is shown in Step 11D.)
3D
4D
Basically, this consists of hooking the vehicle's charging system to a power cable that will plug into the spray
machine, as well as an on-board battery that will also plug into the machine and act as a buer.
INSTALLATION

13
PRO-MIST DURA® ULV
Connecting the Pro-Mist Dura to Your Vehicle's Electrical System (Cont.)
5D
Taking the long cable sections (now free
from the breaker) connect the plug end
to the vehicle 12 volt input on the back
of the machine.
6D
Run both the black and red leads towards
the front of the truck in the direction
of the vehicle’s battery and the mounted
50 amp breaker.
7D
Drill a hole in the bed of the truck or find
alternate path to run the cables to the vehicle
battery. Use a heavy-duty rubber grommet
around hole to protect cable.
8D
Feed the cables through the hole.
INSTALLATION

14
PRO-MIST DURA® ULV
Connecting the Pro-Mist Dura to Your Vehicle's Electrical System (Cont.)
9D
From the underside of the truck pull the cables
through continuing towards the vehicle's
battery and 50 amp breaker.
10D
Secure cables using cable ties and protect from
sharp edges and hot surfaces.
INSTALLATION

15
PRO-MIST DURA® ULV
Connecting the Pro-Mist Dura to Your Vehicle's Electrical System (Cont.)
13D
Connect the 10 pin control cable to the back
of the machine.
14D
Connect the 7 pin control cable to the back
of the machine. These will be routed into
the cab of the truck to hook up to the
SmartFlow II control console. (These cables
can be routed similar as the power cables
by drilling into the cab and protecting the
cables from sharp surfaces. Other methods
include routing through the door or
back window.)
11D
Pulling the cables into the engine
compartment to the mounted breaker,
secure the ring terminal of the red cable
to the breaker. The black cable will connect
to the negative battery terminal in a future
step of this instruction.
12D
INSTALLATION

16
PRO-MIST DURA® ULV
15D
Connect the power leads to the vehicle
battery terminals.
Connecting the Pro-Mist Dura to Your Vehicle's Electrical System (Cont.)
With these cables connected to the rear of the SMII control console determine the best mounting location within
the cab. The included SMII mounting bracket can be used to secure the console within the cab. It is recommended
to secure the console for safety purposes.
16D
Connect machine's onboard battery to the
Promist’s power plug.
Verify all electrical connections are clean and secure.
Reset breaker to allow vehicle charging system to deliver
power to the machine’s onboard battery.
INSTALLATION
1. Verify that the Vehicle’s battery and the sprayer’s “on
board battery” are in good condition, (Fully charged and
Load tested).
2. Verify all cabling that is used to deliver Power and Ground
to the machine is of the proper gauge, a multi stranded
6 Awg cable or larger is recommended. All connections
must be clean and tight.
3. Verify both ends of the positive cable have sucient fuse
or breaker protection to prevent excessive vehicle damage
if inadvertent damage and/or an electrical short occurs
along its length.
4. Verify the vehicles charging system is sucient to keep up
with not only the sprayer’s power consumption but also
any lighting accessories and air conditioning that could
aect the consistency of the available power.
5. Ideally a depleted battery should be brought up to full
capacity slowly, using a low amp trickle charger. This is
to prevent overheating and potential damage to both the
connection points and the battery itself.
6. Some newer vehicles may have dierent power saving
modes that can drastically eect both the occurrence and
performance of the charging system. This is sometimes
referred to as “Tow Mode” or “RV Mode”.
7. To achieve optimum and consistent sprayer performance,
it is important to verify that the charging system and
batteries that you connect will meet and ideally slightly
exceed the sprayer’s power requirements.

17
PRO-MIST DURA® ULV
Before operating the sprayer:
1. Check that all electrical cables and connections
are secure and clean. Be sure the battery is in good
condition and the vehicle’s alternator charges at a
dc voltage, less than 15V (if you are going to connect
the sprayer to the vehicle’s electrical system).
This specification is standard for most vehicles.
2. Check the insecticide delivery system to ensure
that all tubing is securely connected, the filter is
tight and the quick-connect fittings are latched.
3. Add insecticide to the tank. Avoid running
the pump for extended periods without fluid
in the lines.
4. After all connections are complete, reset
the breaker to supply power to the sprayer.
Operation
No spraying should be performed until the pump has
been calibrated to deliver the proper rate of insecticide
to the spray head. Directions for calibration are given
in the following section. Read this section on Operation,
then proceed to the SmartFlow II Control: Installation,
Operation and Maintenance section.
The SmartFlow II console is used to control the operation
of the sprayer from a location such as the vehicle cab or
the handlebar of an ATV. To power up the machine, first
verify “Spray head” and “Spray” switches on the console
are switched o. You must turn on the main ON/OFF
circuit breaker switch on the machine located on the
lower half of the Blower stand, under the aluminum heat
sink. When powering o the machine from the console
OFF switch, this breaker switch on the machine will also
switch to the o position automatically.
The pump will operate only if the spray head is operating
at a speed (rpm) that is above 23,000 rpm and below
30,000 rpm, or the machine is in CALIBRATION mode.
See Calibration section on page 88 for details
on Calibrating the dispensing rate.
Stopping the pump is a built-in safety feature to prevent
spillage of insecticide. If at any time during operation
the spray head does not rotate fast enough to properly
spray, the controller will automatically prevent the pump
from operating. In an over speed situation, the spray
head motor will shut down automatically at speeds
above 30,000 rpm. This is done to protect the motor.
The main power must be cycled (turned o, then on)
to reset this fault. Over and under speed faults are now
nearly eliminated with the new speed control feature
that automatically adjusts to maintain the set speed that
is configured in Special Calibration Mode.
As with any ULV space spraying device that is mounted
on a vehicle, spraying should be done only when the
vehicle is moving forward. Begin spraying only when
vehicle has reached the forward speed for which you
have calibrated the pump, and stop spraying before
stopping the vehicle.
To extend the life of your machine, it is not necessary
to turn o the SPRAY HEAD switch (located on
SmartFlow II console) when you want to stop spraying
for brief moments, e.g. backing up, a person walking
down the street, etc. Rather, turn o the SPRAY switch
(located on the SmartFlow II console). This will stop the
pump and no longer feed additional fluid to the spinning
Hub/Sleeve. The Sleeve will immediately begin to SPIN
dry and within several seconds the machine will no
longer emit a significant volume of droplets.
CAUTION: Do not spray when the vehicle is not
moving, or when backing up because this may
result in insecticide falling on the vehicle or its
operator, as well as overdosing the immediate
area with insecticide.
OPERATION
NOTE: After sleeve has spun dry, the rpm's of
the spray head will rise because the load has
been removed. As chemical is re-introduced to
the sleeve, the rpm's will fall. To avoid the high
or low rpm limit faults, be sure your set speed is
not configured so close to the limit that faulted
for this variation. It is important to allow several
hundred rpm for normal variation.