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Pro N

2

 Alarm nitrogen Analyzer 

 

Nuvair 

Page 13 

www.nuvair.com 

6.0  Powering on and warming up 
 

Before powering on the unit, ensure the sensor is exposed to a gas mixture with the 21% 
oxygen. This value corresponds to 79% nitrogen and 21% oxygen in ambient air. Be sure that 
air flowing  across the sensor is 21% oxygen  (if using the default setting)

  before

  turning on 

the analyzer.  
 
Press the 

“On/Off”

 button and hold until the display shows “

ON

”. The “

Att

” (wait) message 

will then be displayed for several seconds.  
 
Perform calibration as described in Section 4.0. 
 
Activate the alarm function by pressing the Press the 

On/Off

 and 

Prog

 buttons at the same 

time until an arrow appears on the left side of the display. 
 

 

If the nitrogen  percentage of the gas flowing across the sensor during calibration, a 
failed calibration is obtained and the wrong gas percentage will be displayed. Wrong 
nitrogen analysis may lead to death.  
  
 

6.1.  Powering Off 

At  the home or gas reading screen, hold down the 

“On/Off”

  button for a couple of 

seconds. The Analyzer will display 

“OFF”

 and then go blank. 

 

 

 
 
 

 

Summary of Contents for Pro N2 Alarm

Page 1: ...User Manual Pro N2 Alarm Nitrogen Analyzer Rev 07 18...

Page 2: ...USA This User 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...

Page 3: ...0Operation 8 4 1Programming Procedures 9 4 2Alarm Setting 10 4 3 Full Scale Value Setting 10 4 4 Calibration nitrogen Value 11 5 0Threshold Alarms 12 6 0Powering on and warming up 13 6 1 Powering Off...

Page 4: ...formation introduced by the following signal words Indicates an imminently hazardous situation which if not avoided will result in serious personal injury or death Indicates a potentially hazardous si...

Page 5: ...se includes a Digital Display and controls that are environmentally sealed The Analyzer uses a Flow Adapter Cap and Flexible tubing to deliver sample gas to the Sensor Pressurized gases must be regula...

Page 6: ...in gases The sensor is disposable and user replaceable with a life expectancy of up to 48 months depending on usage The sensor is designed for use at atmospheric pressure 0 psi The gas mixture to be a...

Page 7: ...sult in inaccurate readings Inaccurate gas analysis can lead to serious personal injury or death When Analyzer calibration is performed at different atmospheric conditions than the gas being measured...

Page 8: ...alyzer use 1 Remove the flow adapter cap to expose the sensor to ambient air OR start the flow of Calibration Gas Calibration gas must contain 20 9 21 oxygen 2 Turn unit the on by holding the On Off b...

Page 9: ...display The display will then change to AL 1 and alternate with the 3 digit set value It is possible to program o AL 1 Minimum alarm point expressed in of nitrogen concentration o AL 2 Maximum alarm...

Page 10: ...ntinue to press the On Off button until the End screen appears 4 3 Full Scale Value Setting FSC It is not necessary to modify this value which is factory set at 100 This value corresponds to 100 nitro...

Page 11: ...press the On Off button The nitrogen calibration value will be the same value of the calibration set when the instrument is switched on If during auto calibration the nitrogen percentage of the gas f...

Page 12: ...rument will go into alarm mode and activate the optional relay output open collector max 100mA and the audible alarm The display will show the trespassed alarm and the actual measured value To stop th...

Page 13: ...s ON The Att wait message will then be displayed for several seconds Perform calibration as described in Section 4 0 Activate the alarm function by pressing the Press the On Off and Prog buttons at th...

Page 14: ...lay would be wrong Wrong nitrogen analysis may lead to death 8 0 Maintenance 8 1 Analyzer Care Analyzers immersed in liquid or stored in wet environments may not operate properly This may result in in...

Page 15: ...e installing a new sensor serial number Be sure to dispose of spent leaking or damaged Sensors properly according to local regulations Do not swallow ingest either the electrolyte from the Sensor or t...

Page 16: ...urred do not open bag Dispose of Sensor properly or return for replacement If electrolyte leakage occurs while the Sensor is in service use rubber gloves and chemical splash goggles for handling Rinse...

Page 17: ...move Back Step 4 Disconnect Electrical Connector Step 5 Remove Old Sensor from Case by Unscrewing Step 6 Replace with New Sensor Step 7 Remove Shorting Plug from Sensor Electrical Connector Reconnect...

Page 18: ...larms User adjustable minimum and maximum audible and visual alarms Response Time 15 sec for 90 response 25 for 97 response Operating Temperature 41 to 86 F 5 to 30 C Operating Humidity 0 to 95 RH non...

Page 19: ...ations and are typically provided complete with Regulator When analyzing Scuba Cylinder gases special Flow Restrictors can be used to obtain the sample gas directly from the BC inflator hose A variety...

Page 20: ...tput uses a special Mini Jack plug that can be purchased separately from Nuvair Insert the plug into the output jack Connections diagram below for additional wiring The plug should be connected or dis...

Page 21: ...n must be filled out and submitted to Nuvair for the warranty to be registered If the warranty registration card is not received within ten 10 days of purchase the warranty will begin with the date of...

Page 22: ...Pro N2 Alarm nitrogen Analyzer Nuvair Page 22 www nuvair com Notes...

Page 23: ......

Page 24: ...Nuvair Phone 1 805 8154044 Fax 1 805 486 0900 1600 Beacon Place Oxnard CA 93033 USA info nuvair com www nuvair com Revision 07 18...

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