Acuva STRIKE I User manual

Advanced UV-LED Water Purification | acuvatech.com Page 1
STRIKE I and II UV-LED
Water Disinfection Module
PRODUCT MANUAL

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
Advanced UV-LED Water Purification | acuvatech.com Page 2
Summary
This document is the product manual for the Strike I and II product family,
including safety, product specification, installation and maintenance
information
Table of Contents
Product Overview
Input Water Quality & Environmental Requirements
Product Information
Strike Mechanical Characteristics
Strike Electrical Characteristics
Installation Guide
Overview Steps
Mechanical Installation Steps
Electrical Installation Steps
Installation with Acuva Supplied Control PCBA
Installation Direct into OEM Product
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11
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Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
Advanced UV-LED Water Purification | acuvatech.com Page 3
Product Overview
Acuva’s Strike platform of high-performance UV-LED modules features
Acuva’s patented IntenseBeamTM Technology and an advanced design that
enables ecient disinfection and sterilization of drinking water for PoU
applications and OEM integration.
Strike I and II modules are factory configurable for a range of flow,
disinfection and lifetime specifications. This manual outlines mechanical
and electrical interfaces and installation requirements for the Strike I and
Strike II family of products.

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
Advanced UV-LED Water Purification | acuvatech.com Page 4
Input Water Quality and Environmental Requirements
The quality of the input water is important as it influences the eectiveness
of the system and the drinking water safety of the disinfected output water.
The input water should be from a potable water source within a range
defined in  . Acuva purifiers are eective for microbial (bacteria
such as E. coli) disinfection, while a secondary filtration system is needed
upstream to remove sediments, chlorine, and particulate contamination
from water.
Parameter Minimum Typical Maximum Notes
pH 5.8 7.0 8.0
UV
Transmittance
of Water
95%/cm 97%/cm -
Evaluated at in
260nm-270nm
band
Water Flow Rate 0.5 LPM - 4.0 LPM
Water
Temperature Above Freezing 30oC 40oC
Hardness < 120 (mg/L)
Turbidity < 1 NTU
Manganese < 0.05 mg/L
Tannis < 0.1 mg/L
Iron < 0.3 mg/L
 : Water quality requirements for proper disinfection
Minimum Typical Maximum Notes
Ambient
Temperature 5oC 30oC 50oC
Relative
Humidity 40% 55% 75%
Continuous
Operation Time - No Limit - With water running
*Continuous
Operation Time 1 minute Without water running
 : Indicates environmental operating parameters required for proper use of Strike devices.
* Possible device damage if operated without water − water is the device cooling mechanism and
overheating can damage the unit

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
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Product Information
The Strike family of modules feature stainless steel outer construction for
structural strength, pleasing aesthetics and water safety.
The Strike I envelope includes a reactor tube and an electronics/optics
head. Outer dimensions and location of features are indicated in  .
(Electrical cable length not drawn to scale).
Strike Mechanical Characteristics
 : Strike I disinfection module mechanical envelope
The Strike I module includes a 3/8” NPT female thread on the water input and
a ¼” NPT female on water outlet.
The Strike II envelope includes two electronics/optics heads joined by a
reactor tube. Outer envelope dimensions are indicated in  .
 : Strike II disinfection module mechanical envelope
The Strike II module includes ¼” NPT female thread on both input and output.

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
Advanced UV-LED Water Purification | acuvatech.com Page 6
Product Information
The Strike modules electrically interfaces via a 4-wire terminated connector
protected with an outer PVC jacket. See  and  for
dimensions of the cable.
The electrical signal family of the Strike module is accessed via a
connectorized, jacketed cable. See  3. Strike I modules with a single
opto-electronic head have one connectorized lead while Strike II modules
with two opto-electronics heads have two identical connectorized leads.
Strike Electrical Characteristics
 3:Strike family signal family and connector
The electrical characteristics of the Strike module IO are listed in detail in
 .
• VCC is the power input to the module.
• The enable is an input to the module to trigger the UV-LED to activate.
• The health indicator is an output from the module signalling the module’s
LED health status.
• Ground acts as the return for VCC and the reference for the indication
and enable signal.
* Wire colour can be Blue/Yellow or Green
*

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
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Product Information
Strike Electrical Characteristics Cont’d
Net Condition Value Unit
VCC
Max. Input Voltage 30 V
Min. Input Voltage 11 V
Max. Current Draw  =  0.5 A
Min. Current Draw  =  0.25 A
LED Health
Indicator (IND)1
Normal Operation Output Voltage VCC V
Fault Operation Output Voltage 0.150 V
Maximum Normal Operation Current 3.5 mA
Maximum Fault Current -20 mA
Enable (EN)2Maximum Input Voltage for Operation 5.0 V
Minimum Input Voltage for Operation 2.5 V
 : Electrical characteristics of Strike module
1IND net contains an internal 5.1kΩ pullup resistor
1VCC will be present on the LED Health Indicator pin when the module is enabled and LED is healthy.
LED Health Indicator will be 0.15V in all other conditions.
2EN net contains an internal 510Ω pulldown resistor
WARNING
Do not exceed maximum electrical ratings for any electrical IO position.
Strike UV-LED electronics always require proper protections respecting
these ratings. See section    
for details on proper electrical integration.
Absolute Maximum Rating
Input Voltage 30V
Reverse Input Voltage 0.3V
Enable Pin Voltage 5.5V
Water Temperature 45oC
Ambient Temperature 55oC
Water Flow Rate 4.0 LPM
Electrostatic Discharge (ESD) 2.0 kV (HBM)
 : Absolute maximum electrical ratings

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
Advanced UV-LED Water Purification | acuvatech.com Page 8
Installation Guide
1. Mount unit in desired position for integration. See section
  for details.
2. Connect the water inlet/outlet lines using proper fittings. See details
in section . Ensure fittings do
not leak at operating pressures—water leaks can damage the Strike units.
3. Connect the electrical connectors (4-pin connector from each side) to
a proper interface.
•For electrical integrations using Acuva control PCBA 600-0213 see
section      .
•For installation direct in OEM equipment please, see section
    .
4. Flush UV module at rated flow rate for several minutes to ensure
water entirely floods the disinfection unit.
Overview Steps
Mechanical Installation Steps
MECHANICAL MOUNTING
Strike modules require proper orientation to entirely flood the reactor and
prevent air pocket from becoming trapped in the module. The module can
be mounted in either vertical or horizontal orientations according to  4.

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
Advanced UV-LED Water Purification | acuvatech.com Page 9
Installation Guide
Mechanical Installation Steps Cont’d
 : Recommended mounting of Strike modules
MECHANICAL MOUNTING CONT’D
Equivalently, it is important to avoid mounting orientations that can possibly
trap air bubbles in the Strike systems. Specifically avoid the mounting
orientations shown in  

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
Advanced UV-LED Water Purification | acuvatech.com Page 10
Installation Guide
Mechanical Installation Steps Cont’d
 : Incorrect mechanical mounting of Strike modules
MECHANICAL MOUNTING CONT’D

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
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Installation Guide
Acuva strongly recommends interfacing the Strike modules electrically with
an Acuva control PCBA part number 600-0213. Integration in this manner
assures the user of easiest, trouble-free deployment of the Strike module as
the Acuva designed control PCBA provides proper power provisioning, signal
protection and easiest access via on-PCBA connectors to access indication
signals.
As the Strike I & II UV-LED modules can disinfect on demand, a triggering
mechanism is needed to toggle the enable pin of the Strike electronics to
activate the LED when water begins to flow. As well, the user may find it
beneficial to add visual health indicators or an audio buzzer to signal the
health or error of the system. Paired with a connectorized flow switch the
user is quickly able on/o functionality and visual or audio indications.
  through   indicated block diagrams and photographs of
the Strike and control PCBA integrations.
Acuva control PCBA 600-0213 operates with Strike I or Strike II module. See
If required, request specification sheet document 600-0213SP_REVXX.pdf
from Acuva technologies for details of this part.
Electrical Installation Steps
INSTALLATION WITH ACUVA SUPPLIED CONTROL PCBA
    

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
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Installation Guide
Electrical Installation Steps Cont’d
INSTALLATION WITH ACUVA SUPPLIED CONTROL PCBA CONT’D
Power Supply
On/O Switch or
Flow Switch
Acuva Interface PCB
Water In
Water Out
Power Supply
Acuva
Interface PCB
Water In Water Out
On/O Switch or
Flow Switch
 7:Strike I integrated with control PCBA block diagram  : Strike I integrated with control PCBA
 : Strike II integrated with control PCBA
block diagram
 :Strike II integrated with control PCBA

Strike I and II UV-LED Water Disinfection Module
PRODUCT MANUAL
Advanced UV-LED Water Purification | acuvatech.com Page 13
Installation Guide
Electrical Installation Steps Cont’d
INSTALLATION DIRECT INTO OEM PRODUCT CONT’D
Designator Component Description
VCC Power Supply 12-24V
U1 78L05 5V Voltage Regulator
U2 Strike Module UVC-LED Water Disinfection Unit
S1 Switch Closes when water flowing
Q1 2N3904 Saturated during normal operation, conducting
LED1
Q2 2N3904 Saturated during normal operation, shorting
LED2
R1 1.50k, 0.5W Current set resistor for normal operation
indicator LED1
R2 1.50k, 0.5W Current set resistor for fault operation indicator
LED2
R3 2.70k, 0.5W Current set resistor for Q1 & Q2
R4 22.1k, 0.125W Q1 & Q2 Base pulldown resistor
LED1 Coloured LED Lit when UV LED is working within normal
parameters
LED2 Coloured LED Lit when UV LED is in a fault condition
 : Recommended components list for Strike I integration circuit.
  indicates the behavior of the LED health indication output of the
application circuit as a function of other conditions.
Flow Switch LED Health LED1 LED2
Open X OFF OFF
Closed Healthy ON OFF
Closed Fault OFF ON
 6:Truth table for interpretation of LED health output signal