OPERATORS MANUAL & FITTING INSTRUCTIONS FOR THE LH 1200 SPRAYER MONITOR LH No. 020-122-UK Version 2.00 LH Technologies Denmark ApS Mølhavevej 2 9440 Aabybro Denmark Tel. +45 9696 2500 Fax. +45 9696 2501 Internet: http://www.lh-agro.
LH 1200 OPERATORS & FITTING MANUAL 2 LH AGRO
LH 1200 OPERATORS & FITTING MANUAL CONTENS Contents INTRODUCTION .................................................................................................................4 OVERVIEW .........................................................................................................................5 GENERAL USE ...................................................................................................................6 FERTILISER DISTRIBUTOR ..............................................
INTRODUCTION LH 1200 OPERATORS & FITTING MANUAL INTRODUCTION Congratulations with your new LH 1200 sprayer monitor. During development of this monitor we have made a point of producing a durable product that is primarily developed to monitor chemical application. The monitor however, includes a number of other functions, which enable it to be used in connection with almost any other implement.
LH 1200 OPERATORS & FITTING MANUAL OVERVIEW OVERVIEW Pos. Description LH AGRO Pos.
GENEREL USE LH 1200 OPERATORS & FITTING MANUAL GENERAL USE The LH 1200 is especially designed for use on a crop sprayer. The following primary functions can be selected directly from the keypad: 1. Work time 2. Forward speed 3. Area counters (trip- and total) 4. Chemical application rate 5. Chemical consumption (litre counter) The monitor can also be used in connection with other implements by encoding some special values (codes).
LH 1200 OPERATOR & FITTING MANUAL GENEREL USE SEED DRILL Type A: Work time Forward speed Area trip counter Area total counter Shaft speed (RPM) Type B: Work time Forward speed Area trip counter Area total counter Seed application rate Seed consumption The above examples show that three basic functions Work time, Forward speed, and Area counter are always available. The secondary functions can be selected as required. The monitor can measure distance in metres as an extra function.
OPERATING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL OPERATING THE LH 1200 PRIMARY FUNCTIONS WORK TIME Key Function Work time in hours and minutes: Pressing this key displays the effective work time (max. 99 hours 59 minutes) The time counter is started and stopped by pressing the key. Flashing colon >:< means that the time counter is running. Constant colon >:< means that the time counter is stopped. Pressing this key for min. 3 seconds resets the counter.
LH 1200 OPERATORS & FITTING MANUAL OPERATING THE LH 1200 AREA COUNTERS The area counters start and stop automatically when the implement is in work/not in work (implement sensor), and continue to count regardless of what other function in the “primary functions“ has been selected. Area is not being measured if an “r” is displayed on the screen. Key Function Area trip counter: Pressing this key displays the effective worked area. Area is displayed with 2 decimals from 0 – 99.99 ha.
OPERATING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL APPLICATION RATE FOR SPRAY CHEMICALS Key Function Application rate: Pressing this key displays the present application rate in litres per ha. The calculated application rate is based on the flow through the flow meter and area metering. Thus, the application rate can only be displayed if the sprayer is in operation and the machine is moving forward. Correct performance presupposes correct calibration of the flow meter (see page 18).
LH 1200 OPERATORS & FITTING MANUAL OPERATING THE LH 1200 SECONDARY FUNCTIONS, FERTILISER DISTRIBUTOR There are two different function sets available for fertiliser distributors, depending on which type of spreader is being used. As mentioned before, the functions Work time, Forward speed, and Area counter are always available and operate in the same way as described in the PRIMARY FUNCTIONS section of this manual.
OPERATING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL SECONDARY FUNCTIONS, SEED DRILL Exactly the same functions can be achieved for seed drills as described above for fertiliser distributors. The functions require the same sensors and the same keys are used. SOW AXLE RPM Encoding a flow figure of 9999 alters the program in the LH 1200 allowing it to display RPM. RPM is displayed by pressing the L/Ha. key. ENCODE: Press the shown keys in this order.
LH 1200 OPERATORS & FITTING MANUAL OPERATING THE LH 1200 SECONDARY FUNCTIONS; SLURRY SPREADER APPLICATION RATE MONITORING Flow metering is possible on slurry spreaders either by using a flow meter (electromagnetic) or by a RPM sensor fitted to a positive displacement pump (exact volume per revolution). By encoding an amount in kilos (with 2 decimals) per impulse as a flow figure the following functions are available: ENCODE: XXXX is the known calibration figure in kg with 2 decimals. 5.
OPERATING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL SECONDARY FUNCTIONS, DISTANCE MEASURING This function can only be used alone. When this function is activated, all other functions are unusable. ENCODE: Press the shown keys in this order. Key Function Distance in metres: NOTE! The maximum distance is 9999 metres.
LH 1200 OPERATORS & FITTING MANUAL ENCODING THE LH 1200 ENCODING THE LH 1200 WORKING WIDTH Key Function Working width: The working width of the implement being used is encoded here. Step Key Procedure 1 Press the working width key. 2 Encode the working width in centimetres using the numerical keys. Ensure that overlaps are accounted for. If the working width is unknown, then drive 5 bouts and measure the distance between the first and the last, then divide the distance by 5.
ENCODING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL WHEEL CIRCUMFERENCE WITH MAGNETS FITTED TO THE WHEEL Step Key Procedure 1 Make a mark on the field and on the tire on the wheel with magnets fitted. 2 Drive slowly forward until the wheel has turned 10 times. 3 Make a mark on the field again. 4 Measure the distance between the 2 marks on the field and divide this distance with 10 the result being the effective wheel circumference.
LH 1200 OPERATORS & FITTING MANUAL ENCODING THE LH 1200 WHEEL CIRCUMFERENCE WITH A MAGNET FITTED TO CARDAN SHAFT A magnet can be fitted to the cardinal shaft if, for some reason, it is not possible to fit any magnets onto a wheel. To determine the value to be entered as the "wheel circumference" use the following procedure: Step Key Procedure 1 Enter a working width of 9999 as described on page 15. 2 Press the area total key. 3 Drive slowly forward until 1 appears on the display STOP IMMEDIATELY.
ENCODING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL FLOWMETER CALIBRATION (FLOW FIGURE) Key Function Flow figure: 1. If this is the first time that the monitor is being used with a sprayer, encode a "start" flow figure of 2000. 2. It is recommended to hold still when calibrating the flow meter to avoid incorrect readings on the sprayer tank indicator. If there is any doubt as to the accuracy of the tank indication, then weighing the sprayer will give greater accuracy. 3.
LH 1200 OPERATORS & FITTING MANUAL ENCODING THE LH 1200 Procedure: If the monitor has counted too many litres, a negative correction must be made. The following example assumes that the monitor has counter 3% too much. The correction is made as follows: Press When the keys are pressed in this order, the flow figure will be altered by –3%. NOTE! We recommend calibrating the flow meter several times during a season.
ENCODING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL Procedure 1. Prepare the implement for calibration. Do not turn the metering shaft after the monitor has been prepared for calibration. 2. Encode a flow figure of 9999: Press the keys in this order and the monitor is ready for counting pulses. 3. Reset the litre counter as follows: Press Press the L key then press and hold thereafter the 0/C key until the litre counter is zeroed. 4.
LH 1200 OPERATORS & FITTING MANUAL FITTING THE LH 1200 FITTING THE LH 1200 FITTING THE MONITOR Fit the monitor where it can be easily seen by the operator whilst driving. We recommend on top of the instrument panel or to the right-hand side of the cabin above the lift operating handles. The form supplied with the LH 1200 can be stuck in the cabin so that the noted values can easily be found and re-entered if necessary.
FITTING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL FITTING THE SPEED SENSOR We recommend fitting the wheel sensor to the tractors right back wheel. See the following diagram. The distance between the magnets and the wheel sensor must not be greater than 5 mm. Fit 2 magnets if the effective wheel circumference is larger than 200 cm. NOTE! The magnets must be fitted with equal distance otherwise the displayed forward speed will be erratic. The magnets can, i.e. be fitted next to the wheel bolts.
LH 1200 OPERATORS & FITTING MANUAL FITTING THE LH 1200 The wheel sensor can be fitted to the cardinal shaft on 4-wheel drive machines. A ”bipolar” sensor must be used when fitting to the cardinal shaft.
FITTING THE LH 1200 LH 1200 OPERATORS & FITTING MANUAL FITTING THE AREA ON/OFF (IMPLEMENT) SENSOR Typical fitting of the implement sensor on the tractor’s lift arms: The implement sensor can be fitted in other positions (PTO handle, hydraulic cylinders, other handles, etc.). There must be movement of minimum 50 mm. The distance between the sensor and the magnet must not exceed 5 mm. An electrical signal from, i.e. a sprayer switch box, etc. can be used as the implement signal.
LH 1200 OPERATORS & FITTING MANUAL FITTING THE LH 1200 FITTING THE FLOWMETER Due to the large numbers of different field sprayers on the market it is impossible to make a universal flow meter fitting kit to suit all. However, the following guidelines should be followed: The flow meter must be fitted so that it only measures the amount of liquid going to the boom, i.e. there can be no return to the tank after the flow meter.
SYSTEM TEST LH 1200 OPERATORS & FITTING MANUAL SYSTEM TEST The entire system can be checked according to the following guidelines if you suspect that one of the sensors is nor functioning correctly: LH 1200 TEST is selected thus: Press Press the keys in the shown order. The following will be displayed: Pos. 1: “F” is shown each time a pulse is given from the volume/volume sensor ”F” is displayed when the sensor is activated (low), do not run therefore run the machine at full speed.
LH 1200 OPERATORS & FITTING MANUAL NOTES NOTES LH AGRO 27
NOTES 28 LH 1200 OPERATORS & FITTING MANUAL LH AGRO
