
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 errors contained within this manual.
If the product(s) 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 written consent of Net Safety Monitoring Inc.
Net Safety Monitoring Inc., products are carefully designed and manufactured from
high quality components and can be expected 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 its sensors against defective parts and
workmanship for a period of 24 months from date of purchase; other electronic
assemblies for 36 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 distributor for details.
We welcome your input at Net Safety Monitoring. If you have any comments
please contact us at the phone/address below or visit our web site and complete
our on-line customer survey: www.net-safety.com.
Contact Information
Net Safety Monitoring Inc.
2721 Hopewell Place NE
Calgary, AB T1Y 7J7
Telephone: (403) 219-0688 Fax: (403) 219-0694
www.net-safety.com
E-mail: netsafe@net-safety.com
Copyright © 2003 Net Safety Monitoring Inc.
Printed in Canada
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Net Safety Monitoring Inc.
TABLE OF CONTENTS
Important Information ...................................................................................... 3
Warranty ................................................................................................................ 3
Contact Information .............................................................................................. 3
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
The Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
The Manual ...................................................................................................... 5
Step 1 — Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Locate Controller/Sensor ................................................................................. 6
Step 2 — Install . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Unpack ............................................................................................................. 7
The Controller Housing ................................................................................... 7
The Sensor ....................................................................................................... 7
Step 3 — Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Field Installation .............................................................................................. 8
Seal ................................................................................................................... 8
Mount ............................................................................................................... 8
Wiring—Sensor and Controller ....................................................................... 9
Connecting Wires .................................................................................................. 9
Wiring—Sensor Separation ........................................................................... 10
Set Non-Isolated/Isolated Current Output ..................................................... 11
Current Loop Measurement (Test Jacks) ....................................................... 11
Set Dip Switch ............................................................................................... 11
Step 4 — Operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Controller PCB .............................................................................................. 12
Calibration Switch ......................................................................................... 12
Power Up ....................................................................................................... 12
Step 5 — Calibrate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Calibrate Sensor ............................................................................................. 13
Calibration Procedure .......................................................................................... 13
Calibration Failure ......................................................................................... 14
Manual Reset ................................................................................................. 14
Step 6 — Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Sensor Fault ....................................................................................................14
Sensor Life .....................................................................................................14
Normal ............................................................................................................14
Output .............................................................................................................14
Step 7 — Maintain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Step 8 — Troubleshoot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
How to Return Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Spare Parts/Accessories ..................................................................................16
Sensor (SIR100) Specifications ......................................................................18
Controller Specifications ................................................................................18
Figure List
Figure 1: Locate Sensor/Controller ................................5
Figure 2: Controller Housing .........................................6
Figure 3: Wiring—Controller and Sensor ......................8
Figure 4: Wiring—Sensor Separation ............................9
Figure 5: Set Up ............................................................10
Figure 6: Controller Functionality ................................11
Figure 7: Calibration Procedure ....................................12
Table List
Table 1: Controller/Sensor Connectors ..........................9
Table 2: Wiring for Sensor Separation ......................... 10
Table 3: Current Loop Measurement ............................11
Table 4: DIP Switch Settings ........................................11
Table 5: State LEDs ......................................................12
Table 6: Part Numbering ..............................................16
Table 7: Wire Resistance In Ohms ...............................17
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Net Safety Monitoring Inc.
INTRODUCTION
The Millennium series is Net Safety's latest innovation in a line of continuously evolving industrial gas detectors. The microcontroller based system provides fast,
accurate and continuous monitoring of gases in extreme environments.
THE PRODUCT
The Millennium Basic is an analog output, explosion-proof, Class 1, Division 1 for hazardous areas, combustible gas detector for use with the SIR100 sensor
(methane/propane or methane/butane).
THE MANUAL
The manual has been designed to make installation of the Millennium product easy. To ensure proper installation, follow the 7 simple steps outlined in the following
pages. Throughout this manual are tips and warnings to make your installation experience more efficient. If you encounter problems during operation, consult the
troubleshooting section or contact your sales representative.
Step 1 — PLAN
Step 2 — INSTALL
Step 3 — WIRE
Step 4 — OPERATE
Step 5 — CALIBRATE
Step 6 — MONITOR
Step 7 — MAINTAIN
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Net Safety Monitoring Inc.
STEP 1 — PLAN
LOCATE CONTROLLER/SENSOR
Figure 1: Locate Sensor/Controller
Prior to the installation process, a location plan for placing the Controller and
Sensor should be developed. Although there are no absolute rules for
determining the quantity and location of a sensor or controller, the following
points should be considered when planning the installation.
• Locate the Controller where it will be accessible and visible.
• Carefully locate the sensor in an area where gases may potentially
accumulate.
• Use redundant systems to enhance protection and reliability.
• Light gases tend to rise; heavy gases tend to accumulate in low areas.
• Consider air movement patterns within the facility.
• Consider the construction of the facility (such as trenches where heavy gases
may accumulate or peaks where light gases may accumulate).
• Seek advice from experts knowledgeable about the primary gas to be
detected.
• Use common sense and refer to various regulatory publications that discuss
general guidelines for your industry.
The two most common installation options are as follows:
Option 1
The Sensor is attached directly to the Controller. A calibration cup is slipped
onto the bottom of the Senor and the gas is attached to the side calibration
fitting.
Junction Box
Sensor
(separated)
Calibration Cup
Side Calibration
Fitting
Tubing for
Calibration Gas
Conduit to
Controller
Apply Calibration Gas
Controller
See "Wiring—Controller and Sensor" on page 9 for detailed instructions.
Option 2
Locate Sensor separate from Controller using a Junction Box.
The Controller is located at eye-level, while the Sensor is located where gas is
most likely to accumulate (for example, high up for a light gas). Conduit then
connects the two devices. A calibration cup is slipped onto the Sensor to
concentrate the gas and the calibration gas.
TIP:
The Calibration Cup prevents air circulation affecting the calibration
process and concentrates the gas during calibration. If the Calibration
Cup is not used, the area must be free of drafts or wind and the flow
rate of calibration gas must be 3.0 liters per minute or greater.
See "Wiring—Sensor Separation" on page 10 for detailed instructions.
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Net Safety Monitoring Inc
Figure 2: Controller Housing
4.00”
3/4” NPT
2.95”
STEP 2 — INSTALL
UNPACK
Carefully remove all components from the packaging. Check components
against the enclosed packing list and inspect all components for obvious
damage such as broken or loose parts.
If you find any components missing or damaged, notify the distributor or Net
Safety Monitoring immediately.
THE CONTROLLER HOUSING
4.850
The Housing is explosion-proof, Class 1, Division 1, Groups C, D for hazardous
applications.
It is designed a 1-man, intrusive calibration.
The Sensor can be attached directly to the Housing or separated using a junction
box.
To remove the cover, simply screw the cover counter clockwise.
THE SENSOR
There are two types of SIR 100, combustible gas sensors; 0-100% LEL for
methane/propane or methane/butane detection.
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