Micron Ulva+ Instruction Manual page 9

CALIBRATION
ULV FORMULATIONS
The table below indicates the relationship between spray volume, flow rate and
walking speed for the ULVA+ as per the following formula:
Flow rate (ml/min) = 6 x spray pass interval (m) x total spray volume (l/ha) x walking speed (m/s)
Spray volume
(l/ha)
0.8 Crop pests
1.0 and diseases
1.0
1.0 Migrant pests
1.0
* Note: Assumes a standard ULV formulation viscosity of 7mm
with liquid viscosity and for more viscous formulations it may be necessary to use a larger feed
nozzle.
For ULV applications spray passes of 3 to 6 meters can generally be used in crop
situations (5 to 10 meters for control of migrant pests on rangeland). Spray pass
intervals should be reduced as crop height increases.
Choose and fit the feed nozzle that is likely to be required. The actual flow rate
should be checked holding the ULVA+ in the spraying position with the feed nozzle
vertical. Remove the atomiser disc by unscrewing the disc fixing screw by hand and
then turn over the sprayer. Wait until the liquid flow is steady and then allow the
liquid to flow into a suitable container for one minute and measure the volume
dispensed. If the flow rate is substantially different from that required change the
feed nozzle and repeat the above procedure. If the flow rate is close to that required
adjust walking speed.
Spray pass Feed nozzle Flow rate*
Interval (m)
5 Yellow
5 Orange
3
5 Orange
10
(ml/min)
25
34
Red 60
34
Red 60
2
/sec. The flow rate will differ
YELLOW
Increased Flow Rate
7
Walking speed
(m/s)
1.0
1.1
1.1
1.1
1.0
RED
ORANGE