Chapter 7
106 Envizio Pro™ and Envizio Pro II® Installation and Operation Manual
Modify PWM Settings (PWM or PWM Close Valve)
If either ‘PWM’ or ‘PWM Close’ is selected as the valve type, a Modify PWM Settings button will display.
Select one of the following methods to configure the PWM control valve associated with the selected node or
control channel.
Manual Calibration. The manual calibration mode allows the operator to manually enter the PWM minimum,
maximum and preset values to known values using an on-screen keypad.
Note: The PWM valve is not operated in the manual calibration mode. It is recommended to verify that
any changes to these settings have the desired affect before controlling product application.
Refer to the PWM Calibration Screen section on page 107 for more information on the PWM
values configured using the manual calibration mode.
Calibration Assistant. The calibration assistant allows the operator to increase or decrease the PWM output
using on-screen controls and set the PWM minimum, maximum, frequency and preset values based upon
observed operation.
To use the calibration assistant mode, toggle the vehicle master switch and at least one section to the on
position. To stop PWM output at any time during the calibration process, toggle the vehicle master switch to the
off position.
Note: Refer to the PWM Calibration Screen section on page 107 for more information on the PWM
values configured using the calibration assistant.
WARNING
The PWM valve output will increase and
decrease as the up and down arrows are
selected. Keep any bystanders away from
areas where product may be expelled and
moving components when performing the
calibration process.
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