Raven Envizio Pro, Installation & Operation Manual

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Chapter 7
110 Envizio Pro and Envizio Pro II Installation and Operation Manual
Feature Settings
Touch the Feature Settings icon to configure additional features settings on the field computer. The Feature
Settings screen may display the following options:
Zero Speed
The zero speed feature will automatically turn off product application if the vehicle speed drops below 0.7 mph
[1.1 km/h] while in automatic mode. To restart the system, cycle the master switch ‘Off’ then back ‘On.’ A speed
of 0.7 mph [1.1 km/h] must be maintained for more than 10 seconds or the zero speed feature will reactivate.
Decimal Shift
Use the decimal shift feature to increase the system accuracy for low application rates. In the standard mode,
the field computer displays values to one decimal place. With decimal shift mode active, the field computer
displays values to two decimal places.
Note:
If the decimal shift feature is changed, be sure to verify all calibration settings to ensure accuracy
of the product control system. Change settings as necessary.
Display Smoothing
Toggle the display smoothing feature to allow the field computer to smooth the rate display on the Guidance
screen. With the feature selected, as long as the actual rate is within 10% of the actual application rate, the
target rate will display as the actual rate on the Guidance screen. The actual rate will be displayed if the actual
rate does not reach the target rate dead band (±10%) within 10 seconds.
Ratio Rate
The ratio rate feature configures the selected control channel to apply an injected chemical at a rate
proportional to the carrier product flow rate. The ratio rate application mode must be enabled via the control
console and a ratio rate cal value must be entered for each product controlled in ratio to the carrier.
Note:
The carrier product must be programmed on control channel 1. If a carrier product is not set as
product 1, the low pressure alarm will not function. If the off rate alarm is triggered frequently
during injection applications in ratio rate mode, access the volume per minute display on the
control console and verify that the target flow rate is within the application range for the pump.