FAQs

To set your Dosatron you take your injected rate (example; 8 oz) divided but your carrier rate (example; 5 gallons) to get your percentage of injection

To convert your carrier rate multiply by 128 (example; 5 gallons x 128 = 640 oz)

8 oz (injection rate) divided by 640 oz (carrier rate) = .0125

Your Dosatron setting would be 1.25%

You set a Dosatron on the black stem on the base of the unit

One side of the stem is ratio, and the other side of the stem is percentage

We will use the percentage (%) side of the Dosatron

Set a self test speed and put the product in manual. 

If the rate settles, there is an issue with the control valve. 

If the rate is still erratic, it is a flow meter/encoder issue. 

Enter a speed cal of 1000 (SP1) or 9999 (SP2). Watch this distance reading on the console. With a small jumper wire, short between the 10 o'clock ground pin and the 6 o'clock signal pin. Each time contact is made, the distance should increase. 

If distance does not increase, remove the section of cable and repeat at the next connector toward the console. Continue until the bad cable is found or until the back of the monitor is reached. 

If all cables pass the test, then there is a problem with the speed source. 

All Raven rate control systems must have speed, boom sense, and flow. There will not be a rate without all three components. Each can be tested but it is recommended to test them in the following order. 

Speed, Boom Sense, Flow

Boom sense (area/hour) will not register without speed, and flow will not register without boom sense. 

If you can already see there is a speed and it is correct, go straight to testing for boom sense. If you can already see there is a correct area/hour, go straight to testing for flow. 

No Rate - Speed

While moving, verify the console distance is counting up and speed is present. Is the speed source mounted correctly? Do we have adequate power? Is the speed type set correctly? Is our speed cal number correct? 

Perform the speed sensor test to see if we have bad cabling or if our speed source needs to be replaced. 

No Rate - Boom Sense

Check for an area/hour to check for boom sense. We need each boom width entered in the console to be correct. With the boom switches and master switch on, and showing a speed, verify that we have an area/hour reading. 

An area/hour test can be performed. Place the system in manual and turn off the master switch and all boom switches. Start driving or set a self test speed. Verify the area/hour is 0. Turn on the master switch and Boom 1, there should be an area/hour reading. Turn on each boom section individually and verify the area/hour increases each time. 

If area/hour does not register any of the boom sections, the voltage needs to be tested. 

No Rate - Flow

The console needs to have speed and boom sense to verify flow. Check the volume/minute to check for flow. Is the flow meter/encoder mounted correctly? Does it have adequate power? Is the cal number correct? 

Perform the short/no short test on the flowmeter cabling to see if we have an issue with the cabling on the flowmeter. 

First thing to check on any steering system is to verify the fore/aft measurements that are entered into the console. If the measurements are incorrect in the console, steering performance will be affected. 

If the machine is slowly weaving back and forth following the guidance line, increase the on line sensitivity by 1-2 units at a time. Check the PWM minimum setting and gradually increase by 1-2%. Inspect the steering sensor and the mechanical components of the machines steering. If there is a lot of play in the steering, the performance will be affected. 

If the machine is erratic or jerky when following the guidance line, decrease the sensitivity by 1-2 units at a time to see if the steering responds to the guidance line better. Check the PWM minimum values. It is usually set between the range of 20 to 40%. Lower it gradually if it is over 40%, this may be too high. 

If the machine does not acquire the line fast enough, increase the line acquire by 1-2 units at a time. This will increase how aggressively the machine will steer to lock onto the guidance line. Try directing the machine's heading to look as straight down the line as possible before engaging the steering system. 

If the machine is too aggressive and over steers the guidance line, decrease the line acquire gradually by 1-2 units at a time. 

If we have no GPS at all, check the GPS antenna and the cabling connecting it to the display. Extreme bends can cause the wires in the cable to pinch or bend. Make sure there is nothing in the way that will block the antenna's view of the sky. Check for 12 volts of power going to the receiver when the machine is off. 

If we have GPS but the Differential correction drops out, test for voltages to the receiver and antenna. Bad power and ground connections can cause temporary loss of differential corrections. 

If we have a GPS signal but no differential lock, try changing the PRN satellite or changing it to auto. Check the cabling, receiver, and antenna for bad connections or bad voltage. 

1. Hold the connecter so they keyway is at the 12 o'clock position. 

2. Enter a Meter Cal of 1 in the Meter Cal key. 

3. Turn on the master switch and the boom switches. 

4. With a small jumper wire or paper clip, short between the 2 o'clock and 6 o'clock pins. Each time contact is made, the Total Volume should increase. If volume doe not increase, check the next cable connection. Replace the defective cables as required. 

5. Check for 5 volts between the 2 & 10 o'clock and the 2 & 6 o'clock. 

6. If cables test good, replace or repair the flow sensor or flowmeter.