TeeJet LH 85 - Manual (Page 41)

O PERATORS MANUAL FOR THE LH 85 S PRAY C ONTROLLER S ETTINGS
LH A GRO 4.17
As there will almost always be a pressure drop between the pressure sensor
and the nozzles we recommend measuring the actual pressure with a
manometer fitted as close to the nozzles as possible during pressure sensor
calibration.
1. From "OEM setup" select "Sensors".
2. From "Sensors" select "Calibration".
3. From "Calibration" select "Pressure sensor".
4. Highlight "No pressure".
5. With NO pressure in the system press the AUTO key.
6. Confirm that there is no pressure in the system by pressing the ENTER key.
7. Highlight "Cal pressure" press the ENTER key.
8. Encode the reference pressure (standard = 5.0 bar) and press the ENTER
key.
9. Highlight "Pressure max".
10. Press the AUTO key.
11. Increase the pressure on the sprayer until the manometer measures the
encoded reference pressure (see step 8 in the above).
12. Press the ENTER key to complete pressure sensor calibration.
Flow meter:
The LH 85 Spray controller can be fitted with a spray flow meter and a fill flow
meter.
The following must be encoded for each of the flow meters fitted on the sprayer:
• The minimum amount that the flow meter can measure in litres per minute.
• The maximum amount that the flow meter can measure in litres per minute.
• The number of pulses transmitted per litre by the flow meter.
The number of pulses per litre for the flow meter can be encoded directly from the
flow meter calibration menu as follows:
1. From "OEM setup" select "Sensors".
2. From "Sensors" select "Calibration".
3. From "Calibration" select "Flow meter".
4. Select the flow meter for which the minimum and maximum flow rates are to
be encoded by pressing the FLOW INPUT key. The text directly above the
function keys shows which flow meter is being encoded.
5. Encode the number of pulses per litre for the flow meter.
The procedure to encode the minimum & maximum flow rates for the required flow
meter plus an overview of the function keys follow: