| X20 Sprayer Reference Manual |
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Tank Low | This alarm gives a warning that the tank is running |
| low (Calculated) The default warning point is set at |
| 5%, but can be changed in the alarm settings. |
Flow Sensor | This alarm is triggered whenever the master is turned |
Fail | on, ground speed present, and at least 1 Boom Sec- |
| tion is turned on, and there are no flow sensor pulses |
| being received. The default Alarm Delay is 1 second, |
| which can cause some false alarms. If a Sprayer is |
| turned off with the Regulator Valve closed and a |
| centrifugal pump is is use, the pump may cavitate |
| and have virtually no pressure. When the Sprayer is |
| turned on, it will usually take several seconds for the |
| pump to clear the cavitation and produce flow. With 1 |
| second delay, the alarm will sound almost every time |
| the Sprayer is turned off and on with ASC. Setting the |
| delay to 3 seconds will usually stop this false alarm. |
| If the Sprayer is slowed down before the booms turn |
| off, the regulator will be bypassing some liquid back |
| to the tank which will avoid the cavitation problem. If |
| adjutation is sufficient, this could also stop the pump |
| cavitation. |
High | The high pressure alarm indicates that the pressure |
Pressure | signal input has exceeded the alarm point setting. If |
| correctly set, this usually indicates a blockage, booms |
| off when they should be on, or Sprayer speed too |
| high. Normally this would be set around the maxi- |
| mum pressure the nozzles are rated for |
Low Pressure | The most common cause of this alarm is an empty |
| tank. With minimum flows set for nozzles, flowmeter |
| and pressure, this alarm will only show up with a |
| pump or plumbing failures, or an empty tank. |
A2677 Rev 1.5 |
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