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MAN-0093 Rev 0 Oxygen Sensor 
June 2008 
Net Safety Monitoring Inc. 

 

 

 

 

IMPORTANT INFORMATION 

 

This manual is for informational purposes only. Although every effort has been made to ensure the correctness 
of the information, technical inaccuracies may occur and periodic changes may be made without notice. Net 
Safety Monitoring Inc., assumes no responsibility for any error contained within this manual. 

 

If the products or procedures are used for purposes other than as described in the manual, without receiving 
prior confirmation of validity or suitability, Net Safety Monitoring Inc. does not guarantee the results and 
assumes no obligation or liability. No part of this manual may be copied, disseminated or distributed without the 
express consent of Net Safety Monitoring Inc. 

 

Net Safety Monitoring Inc. products are carefully designed and manufactured from high quality components and 
can be expressed to provide many years of trouble free service. Each product is thoroughly tested, inspected and 
calibrated prior to shipment. Failures can occur which are beyond the control of the manufacturer. Failures can 
be minimized by adhering to the operating and maintenance instructions herein. Where the absolute greatest of 
reliability is required, redundancy should be designed into the system.  

 

WARRANTY 

 
Net Safety Monitoring Inc warrants this sensor against defective parts and workmanship for a period of 6 
months from date of purchase. No other warranties or liability, expressed or implied, will be honoured by Net 
Safety Monitoring Inc. Contact Net Safety Monitoring Inc. or an authorized representative for details. 
 
We welcome your input at Net Safety Monitoring Inc. If you have any comments please contact us at the 
telephone number or address below or visit our web-site, www.net-safety.com, and complete our on-line 
customer survey. 

 

If further language translation for this manual is required please contact:  
 

CONTACT INFORMATION 

 

Net Safety Monitoring Incorporated  

 

 

Direct:   (403) 219-0688 

Corporate Headquarters  

 

 

 

Facsimile:   (403) 219-0694 

2721 Hopewell Place NE  

 

 

 

E-mail: 

[email protected]

 

Calgary, AB Canada T1Y 7J7    

 

 

Web-site: www.net-safety.com 

 
 

 
 
 
 

Summary of Contents for ST340X-25-ASSY

Page 1: ...Part Number MAN 0093 Rev 0 June 2008 MILLENNIUM II Gas Sensor Oxygen O2 Sensor User Manual Model ST340X 25 ASSY...

Page 2: ...roughly tested inspected and calibrated prior to shipment Failures can occur which are beyond the control of the manufacturer Failures can be minimized by adhering to the operating and maintenance ins...

Page 3: ...wer Up 10 3 3 Sensor Communication 10 SECTION 4 Output 11 4 1 Alarm and Fault Outputs 11 4 1 1 Other Available Outputs 11 4 1 2 Modbus registers 11 SECTION 5 Maintaining 12 5 1 Millennium II Basic Tra...

Page 4: ...sor June 2008 Net Safety Monitoring Inc 4 5 6 How to Return Equipment 19 Appendix 20 Appendix A Electrostatic Sensitive Device ESD 20 Appendix B Resistance Table 21 Appendix C Millennium II Oxygen O2...

Page 5: ...or hazardous locations and a replaceable sensor module This sensor is designed to only operate with the Millennium II series Transmitters If the sensor is connected to any other model transmitters it...

Page 6: ...Basic sensor I J in mm in mm Transmitter sensor AL 3 0 76 9 0 229 Transmitter sensor SS 2 8 71 8 9 226 Figure 2 below shows the dimensions of the Millennium II transmitter with sensor and the Millenni...

Page 7: ...MAN 0093 Rev 0 Oxygen Sensor June 2008 Net Safety Monitoring Inc 7 Figure 2 Sensor with Millennium II series transmitters dimensional drawing...

Page 8: ...s attached directly to a transmitter and located in the appropriate location for detecting the gas in question Figure 3 Locating Sensor 1 3 Sensor Separated Locate the sensor separate from a transmitt...

Page 9: ...l equipment in a hazardous area and is the responsibility of the installer If in doubt consult a qualified official before wiring the system Guidelines When separating the sensor from the transmitter...

Page 10: ...Junction Box Manual MAN 0081 for terminal designations SECTION 3 Operation 3 1 Configuration Settings All configuration settings are accessed through the Millennium II series transmitter This is done...

Page 11: ...tter manual for more information 4 1 2 Modbus registers Table 4 below shows the user accessible Modbus registers and meaning Table 4 Modbus registers and meaning Reg Meaning Readable Writeable 40001 C...

Page 12: ...low and Below Above The default Alarm Mode is Below Below Above Above means the alarm will be activated when oxygen level is above Alarm Point 1 or above Alarm point 2 Below Below means the alarm will...

Page 13: ...arm Mode Below Above Alarm Point 1 and Alarm Point 2 are distinct as seen in Table 9 Table 7 Alarm Points for Alarm Mode Above Above Alarm Mode Above Above Alarm Point 1 2 Position 1 position 3 Positi...

Page 14: ...n or magnet after which status LED goes solid red release push button or remove magnet 6 When the current output is 3 mA indicated by analog models and the Status LED is once again solid green second...

Page 15: ...menu button 2 Reed switch 2 or menu button 1 Reed switch 1 to navigate Alarm Mode Setting Select this option with menu button 3 Reed switch 3 3 The display will show Only for Oxygen Sensor and then sh...

Page 16: ...n press select menu button 1 or Reed switch 1 to select yes 2 When Calibrate Sensor is displayed select the enter key menu button 3 or Reed switch 3 3 When Calibrate Sensor 1 is highlighted press the...

Page 17: ...sensor housing by turning in a counter clockwise rotation to expose sensor module 4 Using the Teflon pull tab pull sensor straight down out of the sensor housing until sensor is completely removed fro...

Page 18: ...libration If the problem persists please contact Net safety s service department first by phone to try and resolve the issue If the issue cannot be resolved please follow the procedure below on how to...

Page 19: ...an determine and correct the problem 3 A company name contact name and telephone number 4 A purchase order from your company authorizing repairs or request for quote 5 Ship all equipment prepaid to Ne...

Page 20: ...mingly normal for an indefinite period of time followed by a sudden failure To eliminate potential ESD damage review the following guidelines Handle boards by metal shields taking care not to touch el...

Page 21: ...1 09 0 63 1250 12 70 7 99 5 03 3 16 1 99 1 25 0 79 1500 15 20 9 58 6 02 3 79 2 38 1 50 0 94 1750 17 80 11 20 7 03 4 42 2 78 1 75 1 10 2000 20 30 12 80 8 03 5 05 3 18 2 00 1 26 2250 22 80 14 40 9 03 5...

Page 22: ...Oxygen O2 Performance Response Time T95 15 sec Zero Drift 5 per year Environmental Temperature Operational 40 C to 50 C RH 0 99 RH non condensing Metallurgy Aluminum or 316 SS Nema Rating NEMA 4X Sep...

Page 23: ...Calgary AB Canada T1Y 7J7 1 866 FIREGAS 347 3427 ph 403 219 0688 fx 403 219 0694 http www net safety com info net safety com PRODUCT SERVICES CONTACT INFORMATION Telephone 8am 5pm MDT 403 769 6074 403...

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