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EN
APPLICATION
The Herbi Duo is suitable for use with non-selective herbicides at low spray volumes.
The equipment can also be used for application of other products including selective herbicides, but users should read the product
labels to check spray volume and mixing rates are suitable.
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Avoid spraying in wind speeds > 3 m/sec and maintain atomiser disc around 20 cm above ground.
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Avoid flow rates exceeding 150 ml/min.
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Always wear suitable protective clothing to include gloves, boots, and face shield. Always read product labels for mixing
instructions and comply with national regulations for pesticide use.
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Check electrical connections are free from corrosion every 50 hours of use including atomiser motor. Clean electrical contacts
and apply appropriate lubricant to exclude moisture.
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Sprayer tank and hose pipe should be cleaned through after use with water and always dispose of residues and washings
appropriately. Clean external surfaces with a damp cloth.
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Store sprayer and pesticides in secure area away from sunlight and foodstuffs. Always remove batteries during storage.
DESCRIPTION
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Easy to use, light weight, manufactured with quality materials compatible with plant protection products.
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Ergonomic handle and arm rest.
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Operates using 4 x R20 D cell batteries. Rechargeable batteries can be used.
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Battery life 100 hrs+.
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Electric motor rotates at a constant 1450 rpm. Power supply 6 V and less than 0.5 W.
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Droplet size 200 - 300 um VMD 1.0 m band and 650 - 750 um VMD narrow band 0.4 m (Glyphosate in water).
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Includes 4 nozzles 0.50- 1.0 mm diameter orifice.
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Telescopic for easy transport and storage. Extended length 1.48 m. Shortened 1.22 m.
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A protective cover is supplied to avoid damage to the spinning disc during transport and storage.
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Easy to change batteries and spinning disc. Easy access to all parts and serviced with only pliers and a Pozi No 2 screwdriver.
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Flow rate range 40 -150 ml/min depending on nozzle choice and liquid viscosity.
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High work rate with low water volumes and no pumping.
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Zero spray drift.
CALIBRATION
Calibration Formula
Spray Band
Walking Speed
Application volume
Recommended application rates
30 l/ha BROWN (narrow band 0.4 m)
25 l/ha YELLOW (wide band 1.0 m)
Note: Always calibrate using actual spray mix.
Measure flow rate and adjust application volume and walking speed.
Actual flow will depend on liquid level above nozzle and viscosity of product mix.
Ensure all air is purged from the sprayer before calibration and spraying.
WARRANTY
Our goods are guaranteed from the user's purchase date against all manufacture or material flaws. The warranty is strictly limited to
free replacement of parts that our services consider defective. The warranty shall not apply in case of improper use of our materials,
disassembly and/or alterations performed to our devices, and to those parts of normal wear and tear that require maintenance. The
warranty shall not apply in case of negligence, imprudence and irrational use of the material. Dispatch and transportation costs
of parts under warranty as well as workmanship that were not performed in our factory shall be borne by the user. To invoke this
warranty, send us the part subject matter of the claim, carriage free, together with the receipt or the purchasing invoice.
EC & UKCA DECLARATION OF CONFORMITY
We,
Goizper Group - C/Antigua 4 – E-20577 Antzuola - Spain
declare under our sole responsibility that this product complies with RoHS Directive 2011/65/EU; the Machinery Directives 2006/42/
EC and 2009/127/EC in compliance with the harmonized EN ISO 16119-1:2013 and EN ISO 20607:2019.
Antzuola, March 2024.
Aitziber Uriarte, Technical Director
Flow rate (ml/min) = Spray band (m) x Application rate (l/ha) x Walking speed (m/sec) x 6
= 0.4 and 1.0 m
(measured with glyphosate mix)
= 0.8 - 1 m/sec approx.
= 10 - 40 l/ha
Nozzle
Application Rate (l/ha)
0.4 m
White
20
Brown
30
Blue
40
Yellow
N/A
Flow rate with water
(approx.)
1.0 m
N/A
~40 - White
10
~70 - Brown
15
~95 - Blue
25
~145 - Yellow
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