Evoqua Rivo I - Description and Function; General Description

6
Description and function
EN Rivo™ I Controller
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W3T597263 Issue 01-0624 | Evoqua Water Technologies GmbH
6 DESCRIPTION AND FUNCTION
6.1 General description
The electronics module Rivo™ I Controller (Mod. E10) is
a special control device for quantity-proportional dosing of
chemicals in the treatment of drinking water and the
industrial treatment of process water and water.
Based on a flow signal and an adjustable dosing factor,
the electronics module determines the control signal for
dosing. Via position feedback, it regulates the exact posi-
tion of the positioner and allows correction of the dosing
rate in the case of non-linearity of the gas dosing device.
The control of further dosing devices, for example dosing
pumps and solenoid pumps, is possible.
Typical applications are:
• quantity-proportional dosing of disinfectants (ratio
control)
• quantity-proportional dosing of disinfectants with lin-
earization of the actuator (with positioner)
The electronics module is used in:
• the treatment of drinking water
• the treatment of waste water
• cooling water circuits
• the treatment of industrial and process water
Possible signal inputs are:
• external mA signal for flow measurement
• actuator feedback
• 2 digital inputs
• mA signal for optional external dosing factor specifi-
cation
The dosing quantity is determined depending on the flow
signal and an adjustable dosing factor and is output via
mA output (optional) or relay.
Controller outputs for positioners, dosing pumps, solenoid
pumps, analog mA output are available.