I.
Introduction
NANO XL microprocessor based controllers are designed to provide a wide range of control functions for
recirculating water treatment systems. The controller is programmed through a front panel keypad and can
be configured to provide a customized control system for your application. Your particular unit's functions can
be determined by comparing the units model number to the Model Numbering table listed below.
Model Numbering
NanoTron units have several base system control functions and unit optional features. Your unit may be
supplied with one or more of the features described in this manual. To determine what features apply to your
unit check the model number label located on the controller enclosure.
Base Control Function
B2 - Boiler Conductivity and 3 Feed Timers
C - Tower Conductivity and 3 Feed Timers
F4 - Four Selectable Feed Timers
II.
Description
NanoTron units are designed to automate conductivity control and / or the addition of various chemicals or
activate other devices via a relay output. Each relay can have its activation function selected from available
analog inputs, timers, alarms or utility.
NANOXL-C and NANOXL-B2 units include:
•
Two totalizing water meter inputs that can be configured for contacting head or hall effect meter inputs.
•
Three digital inputs that can be set to disable a relay output.
•
Four mechanical relay outputs with normally open and normally closed contacts that can be configured
for powered or dry contact relay operation (see page 4 diagram).
Conductivity Control (C & B) - Conductivity monitoring and control of Total Dissolved Solids (TDS) in a
recirculating water systems in terms of electrical conductivity measured in MicroSiemens/cm. The conductivity
scale can be selected from three ranges (low, mid and high) in the Configure menu (see page 12). Selectable
feed timers are also included (see timer description below).
Feed Timer - Three selectable timers that can be individually programmed as one of the following types:
1. Pulse Timer – Accepts dry contact pulses from a water meter (supplied separately). It can accumulate
1-9999 pulses to activate the timer to run from 0-99 minutes, 59 seconds in minutes and seconds.
Timer will store up to 5 additional activations during an individual run time.
2. Recycle Timer – Provides a user defined "off" cycle in HH:MM and a user defined "on" cycle in
MM:SS that is repeated constantly.
3. 28-Day Timer - 28-day feed timers, typically used for biocide feed are based on a 28-day cycle with
two independent programmable feed cycles allowing for feed on selectable days and weeks.
4. Post Bleed Timer - The relay is activated after a bleed cycle and runs for the set percentage of that
bleed cycle.
5. With Bleed Timer - Activates the relay output simultaneously with the bleed and limits the amount
of time the relay output will be on during the bleed cycle.
6. Utility - Relay always on
7. Alarm - Relay on with alarms
Whole Unit Optional Features
A - Conduit Connections
A3 - Conduit with CE
E - Flow Switch
3
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