Nuvair FAILSAFE User manual

Installation Manual
FAILSAFE Module Kit
for
Nuvair Pro Alarm Analyzers
SKU SS-PCB-GEN2

Pro Alarm FAILSAFE Module
Nuvair
Page 1
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Table of Contents
1.0 Introduction.................................................................................................................... 3
1.1 Symbol Conventions................................................................................................... 3
2.0 Module Description ........................................................................................................ 4
2.1 Module Compatibility .................................................................................................. 5
3.0 Installation of the FAILSAFE Module ............................................................................. 6
4.0 Additional Analyzer Parts............................................................................................... 9
5.0 Nuvair Standard Warranty ........................................................................................... 10
If you have any questions about this equipment, please contact Technical Support at:
Nuvair
1600 Beacon Place
Oxnard, CA 93033 USA
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Hours: Monday through Friday
8:00 AM to 5:00 PM Pacific Time

Pro Alarm FAILSAFE Module
Nuvair
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WARNING
This Operation Manual contains important safety information and should
always be available to those personnel operating this equipment. Read,
understand, and retain all instructions before operating this equipment to
prevent injury or equipment damage.
Every effort was made to ensure the accuracy of the information contained within. Nuvair,
however, retains the right to modify its contents without notice.
Under Nuvair’s system of continuous improvement, certain components may be updated or
changed as higher quality or more efficient parts and assemblies become available.
Nuvair will make every effort to update manuals as parts and functional aspects change.
However, the look or location of components on your product may differ from those in this
manual if improvements have been made that do not affect functionality or operational
procedures.
Units pictured may also be equipped with different options than those on your product. In this
case, the basic operational and maintenance guidelines will still apply.
If you have problems or questions after reading the manual, stop and call Nuvair at
+1.805.815.4044 for information.

Pro Alarm FAILSAFE Module
Nuvair
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1.0 Introduction
This manual will assist you in the installation of the FAILSAFE Module (SKU SS-PCB-GEN2)
into existing handheld or panel mount Nuvair Pro Alarm analyzer powered externally. This
manual will also help customers understand the function of Nuvair Pro Alarm analyzers
equipped with a factory-installed FAILSAFE Module.
The Nuvair Pro Alarm analyzer series are gas analyzers with alarms (visual and/or audible)
that activate when user-defined set points (low and/or high) are violated.
Be sure to read the entire manual.
1.1 Symbol Conventions
This manual uses certain words and symbols to call your attention to conditions, practices or
techniques that may directly affect your safety. Pay particular attention to information
introduced by the following symbols or words:
SYMBOL
MEANING
DESCRIPTION
DANGER Indicates an imminently hazardous situation, which if not
avoided, will result in serious personal injury or death.
CAUTION Indicates a potentially hazardous situation, which if not avoided,
could result in serious personal injury or death.
WARNING
Indicates a potentially hazardous situation, which if not avoided,
may result in minor or moderate injury. It may also be used to
alert against unsafe practices.
NOTICE Notifies people of installation, operation or maintenance
information which is important but not hazard-related.

Pro Alarm FAILSAFE Module
Nuvair
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2.0 Module Description
As originally designed, most Nuvair Pro Alarm analyzers are:
(a) Manually controlled by an On/Off button on the front of the analyzer control panel.
(b) Equipped with a relay that can activate or disable external devices.
Some customers with a compressor-integrated analyzer want the compressor to shut down
automatically if analyzer power is interrupted or the analyzer goes into alarm. In response to
customer requests, Nuvair developed the FAILSAFE Module. Adding the FAILSAFE printed
circuit board (PCB) to your existing Pro Alarm analyzer will automatically disable compressor
power if:
(a) Analyzer power is interrupted, or
(b) Analyzer goes into alarm.
The FAILSAFE Module can be installed on the following on Nuvair Pro Alarm analyzers
originally equipped with these power configurations:
•Wall plug-in
•DIN power
The FAILSAFE Module is not compatible with any battery-powered Pro Alarm analyzer.
By installing the FAILSAFE Module, the analyzer will automatically power on when compressor
power is turned on.
The FAILSAFE Module can be purchased separately by existing Pro Alarm analyzer owners,
or the analyzer can be returned by the customer to the Nuvair production facility in California
(USA) for installation.
WARNING
This manual describes how a customer can install the FAILSAFE Module to
existing Pro Alarm handheld or panel mount analyzers. To complete this
installation, the customer must have a rudimentary knowledge of, access to,
and the ability to use and understand:
•Electronic components
•Small Phillips screwdriver
•Solder, and
•Soldering iron.

Pro Alarm FAILSAFE Module
Nuvair
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DANGER
Failure to properly install the FAILSAFE Module will result in the Pro Alarm
analyzer not functioning properly. An improperly operating analyzer will not
alarm and will not alert users that dangerous gas conditions exist. Exposure to
dangerous gases will result in significant injury or death.
2.1 Module Compatibility
The FAILSAFE Module is compatible with many Nuvair Pro Alarm analyzers power by wall
plug-in or DIN power. This installation manual covers the installation of the FAILSAFE
Module on the following analyzers:
•Pro CO2Alarm Handheld (9616)
•Pro CO2Alarm Panel Mount (9617)
•Pro CO Alarm Handheld (9625)
•Pro CO Alarm Panel Mount (9617)
•Pro He Alarm Handheld (9627)
•Pro He Alarm Panel Mount (9628)
•Pro H2O Alarm Panel Mount (9607)
•Pro N2Alarm Handheld (9613)
•Pro N2Alarm Panel Mount (9614)
•Pro O2Alarm Handheld (9611)
•Pro O2Alarm Panel Mount (9462)
•Pro O2Alarm Panel Mount Remote (9460)
The FAILSAFE Module is also compatible with the following multigas and specialty container
analyzers. Due to the complexity of these unique and specialized Pro Alarm analyzers,
Nuvair does not offer written guidance to customers on how to install the FAILSAFE Module.
Customers are advised to return the following analyzers to the Nuvair production facility in
California (USA) for installation of FAILSAFE Module/s:
•Pro 4 Warn Alarm (9604)
•Pro Trio Multigas Alarm (9603)
•Pro CO Analyzer with Low Pressure Alarm (9621.5)
•Pro CO Analyzer with Low Pressure & High Temperature Alarms (9621)
•Pro Trimix Alarm (9609-LB)
•Pro Duo Alarm (DUO – all versions)

Pro Alarm FAILSAFE Module
Nuvair
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3.0 Installation of the FAILSAFE Module
WARNING
If you do not have rudimentary knowledge of electronics, which includes the
ability to properly solder sensitive electronic connections, STOP! Package up
all parts and contact Nuvair for assistance.
DANGER
Your failure to properly install the FAILSAFE Module will result in the Pro
Alarm analyzer from functioning properly. An improperly operating analyzer
will not alarm and will not alert users that dangerous compressor gas conditions exist.
Exposure to dangerous gases will result in significant injury or death.
Step 1: Gain access to the Pro Analyzer
enclosure and
remove Pro Analyzer circuit
board
(pictured).
Step 2: Remove FAILSAFE parts from
shipping bags.
FAILSAFE circuit board.
Supplied screws and spacers.

Pro Alarm FAILSAFE Module
Nuvair
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Step 3: Solder green and blue “switch” (SW) wires onto Pro Analyzer circuit board.
Step 4: Connect circuit boards together with provided screws and spacers (6 pieces total).

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Nuvair
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Step 5: Connect wires to FAILSAFE Module as shown.
OUT
IN
SW
To existing power source.
(Included wire use optional.)
To Pro Analyzer circuit
board power connector.
To Pro Analyzer soldered
switch connection.
To Pro Analyzer 4-20 mA.
Black shrink
wrap towards
Pro Analyzer.
Screw terminal block and connection identifiers.
NC
NO
COMMON

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Nuvair
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4.0 Additional Analyzer Parts
SKU
Identification
BPM6
Pro Analyzer Flow Adapter Cap
5463K369
Hose Barb Fitting for Pro Analyzer Flow Adapter Cap
51075K246
Tubing for Nuvair Pro Analyzer Flow Adapter Cap
PC
Wall Socket for SP-C2S3A Charger
120-052
12-volt Power Supply for Nuvair Pro Alarm Analyzers without Battery
Assembled unit.