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SX-MD16E Electric Sprayer
User Manual
Notice to Users
This User Manual is a part of the Sprayer. Please keep
it in good condition. In order to utilize and maintain the
product in good working order, please read the User
Manual carefully before operation. If you have any doubts
contact the supplier.
The Sprayer should be operated, maintained and
repaired by persons who are familiar with its performance
and know how to operate it in a safe manner.
The manufacturer shall not be liable for decreased
reliability, machine damage and human injury arising from
unauthorized modification of the Sprayer.
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Table of Contents
I. Product Overview………………………………
II. Structure and Features…………………………
III. Technical Parameters…………………………
IV. Precautions…………………………………
V. How to Charge & Operate the Sprayer……
VI．Recommended pesticide and spray head operation
VII．Structural Diagram and Schedule…………………
VIII． Cleaning and Maintenance………………………
IX． Storage…………………………………………
Ⅹ. Troubleshooting ………………………………
Ⅺ. Packing List ………………………………………
I. Product(Overview(
This is a highly-efficient rechargeable sprayer, suitable for
applying pesticides, fertilizers and chemicals for
controlling weeds and pests in crops, flowers
and gardens. The Sprayer is suitable for the sanitizing of
livestock and poultry houses, epidemic control and
sanitation of public places.
Powered by a 12V/7Ah battery, this sprayer saves time
labor and is up to 3 - 4 times more efficient than a manual
sprayer.
This sprayer can be operated continuously for up to 6
hours and spray 75 gallons of liquid after one full
Charge (based on a new battery).
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II. Structure and Features
Structure: This sprayer consists of a tank, base, battery,
mini-pump, charger, spraying system, volt meter, rubber
tubes, switch, spraying lance, nozzles and straps, and
trailer.
Features：
The spray tank is ergonomically designed to fit the
human back comfortably or capable of connecting with
the trailer for easy towing, it’s easy to assemble and
disassemble.
Fitted with a high-pressure large flow pump to work
with nozzles of various functions, the atomization
pressure is between 2-4.5 bar, to suit the demands of
many application types, with various nozzles to
maximize productivity and cost-savings.
Equipped with a compact light weight, high pressure,
diaphragm pump for even atomization and overload
protection to extended service life.
A voltmeter and low-battery alarm circuit for precise
and clear indication of battery voltage. The alarm will
give an audible warning when the battery voltage falls
below 11V, to indicate the battery requires recharging.
The sprayer should be switch off to prevent
over-discharging to extend the service life of the
battery.
Supplied with a dedicated three-stage battery charger
(constant current, constant voltage, float maintaining）
The indicator lamp ： red — charging ； green —
full/stand-by (Never switch off at mains and leave
charger connected to the Sprayer) this can shorten
service life of the battery.
Designed to be low fatigue and user-friendly, the
sprayer can be carried on your back or wheeled on its
trailer. The trailer features a telescopic handle that can
be varied depending on the user height for easy
operation.
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III. Technical Parameters
1. Type： Knapsack and Wheeled trailer
2. Overall Size ： 340×300×730mm
3. Net Weight： 8.3kg （trailer：2.2kg）
4. Capacity of Tank：16L
5. Pump： Micro diaphragm pump
Working Pressure ： 2.0~4.5 bar
limit of pump pressure： 4.5-5.0 bar
6. battery ：12V7Ah SLA（fully-enclosed，maintenance free）
7. Charger: Input AC100-240V~50/60Hz
Output 12V DC 1.3A
Spraying nozzle
type
Pressure
bar
Flow
L/min
Spraying nozzle
type
Pressure
bar
Flow
L/min
Cone spraying
nozzle
3.0~4.5
0.70~0.90
Fan spraying nozzle
0.20~0.40
0.60 ~1.10
Double spraying
nozzle
2.5 ~4.0
1.30 ~1.60
Four-hole adjustable
spraying nozzle
0.20~0.40
0.60 ~1.10
IV．Precautions
● In addition to strictly following the safety instructions given in
the Manual, the operator is required to :
1. Never spray flammable liquid of any kind；
2. Observe the Safety Instruction given by chemical
manufacturers before operating the Sprayer.
Hazards
You are required to read this Manual and follow
the instructions for safe operation.
The operator should wear a respirator mask,
safety glasses, protective hat, protective
clothes, water-proof gloves and rubber boots
etc. during filling and spraying.
Storage and maintaining of pesticide.
Chemicals should be kept out of the reach of
children. For safe disposal of pesticide
containers follow the safety instructions issued
by the chemical manufacturer.
Disassembly and repairing of charger by
non-professionals is prohibitted . In case of
failure, please contact the distributor.
No servicable parts inside!
In case of inhaling dangerous chemical vapor
or direct contact with skin, seek medical
attention immediately! Be sure to inform the
medical professional of the type of chemical
involved.
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Never spray at human beings, pets or animals.
Never spray against adverse wind.
The residual chemical should be kept in a
container and never poured onto the ground,
drains or rivers. The empty chemical containers
and bags should be disposed of safely in
accordance with the Manufactures
recommendations or sent to the manufacturer
for proper disposal. Keep chemical containers
away from living areas and water sources.
Warning
Persons affected by fatigue, poor health, injury,
pregnancy or pesticide allergy or should never
engage in pesticide dispensing. Never consume
alcohol immediately after spraying noxious
chemicals.
Never use strong acid, strong alkalines, and
inflammable solutions； Never use highly-toxic
and highly-persistent pesticide for pest control of
vegetables, melon crops, fruit trees, etc. Ensure
enough time after pesticide application before
harvesting time. Contact chemical company for
suitable time infomation.
Never dispose of used batteries in a fire or
household waste. Used batteries should be taken
to a recycling centre for recycling or proper
disposal.
Visit www.recycle-more.co.uk to find
your local recycling centre
Under the WEEE Regulations, all new electrical
goods should now be marked with the crossed-out
wheeled bin symbol should be sent for recycling.
Retailers are obliged under these regulations to
offer customers free take-back of their WEEE on
a like-for-like basis when they buy a new
Electrical or Electronic product.
Precautions
The chemicals for application in this Sprayer
should not exceed 45OC. Operation in an
ambient temperature of 450C or below －100C
should be avoided.
Always carry out Trial spraying with clean
water, to check the various joints for possible
leakage, also a check nozzle for required
atomization conditions prior to initial operation.
Make sure everything is ok before preparing the
chemical liquid.
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The preparation of chemicals should follow
the instructions and formula published by the
chemical manufacturer. Unauthorized altering
of the dilution rate of chemical is prohibited,
and may endanger human and animal health,
or result in the failure of sprayer or pest
control.
Upon completing the operation, it is
recommended you change your clothes and
wash exposed body parts such as hands and
face. In case of highly toxic pesticides and
germicide, its recommended to shower after
operation to ensure safety.
V. How to Charge the Sprayer
A 48hr first commission charge is required!
The Battery fitted to this product requires a special extended 48hr
charging period before it is used for the first time. This procedure is
required to initialise the battery after shipping.
1. Ensure the Red Switch is in the OFF position (as shown).
2. Connect the mains charger lead. (as shown).
3. Turn Mains Power on and leave for a minimum of 48 hours or
longer.
4. The LED on the charger may remain Green for approximately 40
hours.
5. The LED on the charger will turn Red for the final 8 hours of
charging.
6. The LED Turns back to Green to indicate the charging is complete.
NOTES:
1. The needle meter will not move during the charging period. The
needle meter will only move when the product is in operation: it
shows the remaining power left in the battery when in use. It is not
an indication of charging progress.
2. When in regular use the charge time will be approximately 8 hours.
3. Do not leave the charger connected to the sprayer with the power
switched off at Mains.
4. We recommend continuous charging when not in use.
Never switch off the mains power supply leaving the
charger connected to the sprayer!
Fig. 1
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1. Voltmeter (Fig. 3)
The Sprayer is equipped with voltmeter measuring voltage
between 11V~15V. The green
area of color scale indicates
full battery , fit for normal
operation； Yellow area
indicates low voltage but the
system can still keep working for a limited time; The red area
on the left indicates extremely low power requiring immediate
recharging. The lowest working voltage of the Sprayer is DC
11.5v. The alarm will sound to remind the Operator to stop use
and charge the battery when the voltage falls below this value.
The charger should be only be operated indoors in a dry,
ventilated location 50cm above the ground.
If the Sprayer has been only used for a short time, it is
unnecessary to charge if it is to be used again within 1 week. If
the Sprayer not required for a long time, it should be fully
charged and left on trickle charge connected to mains power, or
charged at intervals (such as one month) in a bid to maintain
the capacity and service life of the battery.
Filling tank with chemical. Remove the lid on top of
sprayer to fill the tank (Fig. 4)
with mixed chemical through the strainer
provided slowly, then tighten the tank lid
carefully.
*Never immerse Sprayer in water for filling or cleaning*
4. Spraying
Ensure the trigger is in the off position! Turn on the power
switch (“-“indicates ON, “O” indicates
OFF). Point the nozzle to the required
area and hold down the trigger bar to
start spraying. (Ensure the work area is
clear of people and animals first.)
Fig. 5
Fig. 3
Fig. 4
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Control of water switch triggers (Fig. 6)
(II) Spraying on the trailer.
Loosen adjuster at the lower end of the handle bar to suit
the height of operator. (Fig. 7) The straps should be
folded and stored in the tray provided. (Fig. 8)
After the spraying starts, the operator can pull the trailer
with one hand and move forward while using the spray
boom with the other hand. The spraying should be
conducted to the side. The operator should move forward
at constant speed to avoid over-spraying or missing areas.
Never spray in the direction of the wind. The operator
should never stand in the spray drift always walk with the
wind behind you.
Spraying in knapsack mode:
(1) Dismounting of trailer.
When spraying on terrain not fit for trailer, the trailer
may be dismounted and the Sprayer may be mounted
on the operator’s back.
Refer to Fig. 9 for dismounting of trailer. Turn the two
locking nuts on the upper part of trailer anti-clockwise
to separate the trailer from the Sprayer (Fig. 10)
Fig. 7
Fig. 9
Fig. 9
Fig. 10
Fig. 6
Fig. 7
Fig. 8
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(2) Fixing of shoulder straps (Fig. 11)
(IV). Regulating of pressure (Fig. 12)
Turn the regulating knob to change the pump pressure,
vary the atomizing size and increase the spray pattern
depending on the nozzle or the crops to be sprayed. Turn
the regulating knob clockwise to increase the pressure and
anticlockwise to decrease pressure and increase the droplet
size. (see Fig 12)
The Sprayer has overload protection. When the water
switch is closed or the nozzle is blocked, the pump will
relieve the pressure automatically.
Never use pressure regulating knob as a power switch!
When you have finished spraying, the power switch must
be turned off.
To stop the spraying, you press the power switch to turn
off the pump, and then de-pressurize the lance by
squeezing the trigger unlocking the catch.
Fig. 11
Fig. 12
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Recommended spray nozzles:
Liquid chemical Solutions (Not Mixed Powders)
The sprayer is supplied with a selection of nozzles which
are suitable for the majority of spraying tasks. As a guide
we only recommend the
Cone Shaped Conical
Nozzle Fig 13. for
pesticides and weed killers.
For fertilizers and disinfectants the fan nozzle is ideal for
application Fig 14
Powder mix chemicals (Pre Mixed Powders)
Never mix chemicals in the sprayer tank!
Always accurately mix powdered chemicals in a suitable
container, prior to adding them to the spray tank.
The four hole adjustable spray nozzle is suitable for mixed
chemicals. It can be adjusted to suit your desired flow rate.
Spray in a uniform pattern evenly with the wind.
Fig. 13
Fig. 14
Fig. 15
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SN De s c r i p t i o n
Qt y
SN De s c r i p t i o n
Qt y
1
Spr a y t an k c ap
1
26
Spr a y boom n ut
3 2 Inlet val ve
1
27
Spr a y boom
1 3 seal ri ng
1
28
wa t e r s wi t c h
1 4 bi g st r ai ner
1
28-1
limit cap
1 5 inlet bend
1
28-2
swit ch bar
1 6 hose 1 28-3
swit ch nut
1
7
smal l st rai ner
1
28-4
swit ch spri ng
1
8
hex nut M4
1
28-5
val ve pl ug
1
9
spray boom clamp
1
28-6
val ve pl ug O- ring
∅9. 5×1. 9
1
10
cr oss r ecess ed pan hea d
screw M4×12
1
28-7
seal ri ng ∅8. 2×∅4×2. 5
1
11
spray t ank
1
28-8
swit ch pin
1
12
O-ring ∅20.6×3
1
28-9
swit ch body
1
13
Ru b b e r t u b e j o i n t
1
28-10
O-ring ∅20.6×2.65
1
14
Pi p e- cl i p 10- 16
3
28-11
swit ch str ainer
1
15
Inl et Pi pe
1
28-12
Ha n d l e
1
16
cr oss r ecess ed pan head
tapping screw ST4.8×25
2
29
Flared sheath
1
17
Co n t r o l Mo d u l e
1
30
rubber hose sheath
1
18
Ba t t e r y Pr e s s P l a t e
1
31
rubber hose
1
19
Ba t t e r y 1 2 v 7 AH
1
32
jacket
1
20
cr oss r ecess ed pan head
screw M5×15
4
33
count ers unk head tappi ng
screws ST2. 9×14
2
21
Fl a t wa sh er
4
34
vol t me t er
1
22
di aphr agm pump
1
35
adjust abl e potent i omet er
1
23
cone s pray head
1
36
hex nut M5
4
23-1
Spr ay he ad c ap
1
37
power swi t ch
1
23-2
cone s pray s heet
1
38
pr ess ure -regulating
throb
1
23-3
split sheet
1
39
pot ent i omet er nut
1
23-4
seal gasket ∅16×∅11× 2
1
40
flat washer of
pot ent i omet er
1
23-5
bend 1 41
fuse holder
1
24
Spr a y boom O- ring ∅15×3
2
42
hexa gon t hi n nut
1
25
Fa st eni ng s l e e ve
2
43
Fus e ∅5*20 5A
1
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Cleaning and Maintenance
After every spraying operation, the
Sprayer should be cleaned to avoid
corrosion of internal parts and blockages
of the nozzles caused by chemicals. In
addition, proper cleaning can also avoid
the risk of contaminating other chemical
agents being sprayed in future operations
that may bring harm to plants and crops.
How to clean：
·Clean the outer surface of the Sprayer with a wet cloth.
Fill the tank with clean water and replace the lid, shake
the sprayer, then turn on the power switch to spray the
cleaning water via the nozzle.
· The tank strainer can be removed for cleaning.
Warehousing / Storage
The Sprayer should be stored indoors,
upright in a dry place and out of reach of
children. Ensure the Pump is switched off;
Charge the battery once every 4 weeks.
Always disconnect the charging cable
from the sprayer control panel after
charging to prevent damage to battery
and charger.
SN
De s c r i p t i o n
Qt y
SN
De s c r i p t i o n
Qt y
44
Fus e c ap
1
58
cr oss recessed pan head
self- tapping screw ST2.9×16
5
45
cr oss recessed pan head
screw M6 ×12
6
59
tray
1
46
Ch a r g i n g s oc k e t
1
60
locking nut
2
47
wa t e r - shi el d
1
61
locking cap
2
48
end- cover
1
62
pul l rod
1
49
socket nut
1
63
Ha n d l e
1
50
back pad
1
64
strap l ock
4
51
back pad buckl e
4
65
strap
2
52
wh e e l c o v e r
2
66
strap hook
2
57
trailer frame
1
67
Ch a r g e r 1 2 V
1
53
ci r cl ip for shaft 10
2
68
30° dual spray head
1
54
flat washer 10
2
69
Fou r -hol e adj us t abl e spray
head 1 55
wh e e l 2 70
Co n e s p r a y h e a d
1
56
wh e e l s h a f t
1
Fig. 17
Fig. 16
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VIII. Troubleshooting
Problems
Causes
Solutions
The motor fails to
run after being
switched powered
on.
· The pump pressure
has been set at the
min value.
·Fuse burnt-out
· Battery out of power
·Power switch has been
damaged
·Battery wire connector
disconnected
·Motor damaged
Potentiometer has
been damaged.
· Turn the knob
clockwise to increase
the pressure.
·Replace
·Recharge
·Replace the switch
·Disassemble the base
to reconnect the
wires.
·Replace the motor
Replace the
potentiometer.
Abnormal sounds
heard while the
motor rotates
·The fastening screws of
the pump are loose
·Tighten the screws
Leakage occurs to
the underside of the
base
·The inlet / outlet pipes
of the pump have
loosened or broken
·Disassemble the base
to tighten the pipe
clamp / replace pipe.
Poor atomization
results
·Pump pressure too low
· The holes inside the
nozzle tip are
blocked.
· The nozzle hole has
worn out.
· The spraying nozzle
sheet has been
inversely assembled.
· Pipe joints may
· Turn the knob
clockwise to increase
the pressure.
·Remove the impurities
·Replace the Nozzel.
·Correct it
·Tighten the joints
loosen.
· Battery short of
power
· One inlet valve or
outlet valve of the
pump has been
jammed to reduce the
pressure by 50%.
· Recharge the
battery.
· Remove the base.
Pump clean water
while knocking at the
pump head gently.
Disassemble the
pump housing to
repair.
IX. Packing List
S/N
Description
Unit
Qty.
Remarks
1
Sprayer Body
unit
1
In addition,
Brass
multi-purpose
spraying
lance and
spare
nozzles are
available for
purchasing
separately
2
User’s Manual
Pc(s)
1
3
Four hole adjustable
spraying nozzle
Pc(s)
1
4
Fan spraying nozzle
Pc(s) 1 5
30° Do u b l e spraying nozzle
Pc(s) 1 6
split coupling
Pc(s)
2
7
spray boom O-ring
∅15×3
Pc(s)
2
8
O-RING ∅20.6×3
Pc(s)
1
9
Valve plug O-RING
∅9.5×1.9
Pc(s)
1
10
Seal Gasket ∅16×∅11×2
Pc(s)
2
11
Seal Ring∅8.2×∅4×2.5
Pc(s)
1
12
Fus e ∅5*20 5A
Pc(s)
1
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