INFRARED COMBUSTIBLE GAS DETECTOR
USER MANUAL
UT-P
+
-SIR100
ISO
9001
Part Number: MAN-0001-00 Rev 3
Certified Company
Copyright © 2002 Net Safety Monitoring Inc.
Printed in Canada
This manual is provided for informational purposes only. Although the information contained in this manual is
believed to be accurate, it could include technical inaccuracies or typographical errors. Changes are, therefore,
periodically made to the information within this document and incorporated without notice into subsequent
revisions of the manual. Net Safety Monitoring Inc. assumes no responsibility for any errors that may be
contained within this manual.
This manual is a guide for the use of a Infrared Combustible Gas Detector and the data and procedures contained
within this document have been verified and are believed to be adequate for the intended use of the detector. If
the detector 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.
Net Safety Monitoring Inc. , warrants its sensors and detectors against defective parts and workmanship for a
period of 24 months from date of purchase and other electronic assemblies for 36 months from date of purchase.
No other warranties or liability, expressed or implied, will be honored by Net Safety Monitoring Inc.
Contact Net Safety Monitoring Inc. or an authorized distributor for details.
Table of Contents
Unit I GENERAL INFORMATION .......................................... 1
DESCRIPTION......................................................................... 1
FEATURES ........................................................................... 1
Technical Specifications.................................................................. 1
Sensor Specifications ............................................................. 1
UNI-TRAN Specifications .......................................................... 2
Figure 1 Dimensions for Adalet enclosure Premium Plus .................................. 3
UNIT II SYSTEM INSTALLATION .......................................... 3
INSTALLATION ........................................................................ 3
Location of Sensors............................................................... 3
Unpacking ...................................................................... 3
Mounting ....................................................................... 4
Wiring ......................................................................... 4
Sensor Separation ............................................................... 5
Initial LED Status ................................................................. 5
UNI-TRAN PREMIUM PLUS TERMINAL CONNECTION DIAGRAMS .............................. 7
Figure 2 Uni-Tran Premium Plus connection Diagram for SIR100 (LEL) Sensor ................ 7
Figure 3 Uni-Tran Premium Plus Remote mounting using sensor separation .................. 8
Analog Output ................................................................... 9
Sensor Drift ..................................................................... 9
Sensor Life ..................................................................... 9
Test Jacks ...................................................................... 9
Unit III SYSTEM SETTINGS ............................................. 10
MAIN MENU .......................................................................... 10
Summary of Main Menu .......................................................... 10
Figure 4 - Magnetic Reed Switch Activation (Premium Plus Model) .................. 10
Unit IV SYSTEM CALIBRATION .......................................... 11
CALIBRATION ........................................................................ 11
Calibration Procedure (use 50% certified calibration gas) ................................ 11
Periodic Response Check ......................................................... 12
Relay Settings .................................................................. 12
Review Relay Settings ........................................................... 13
Table 1 - Table of Responses ...................................................... 14
ORDERING INFORMATION ............................................................. 15
Appendix A Net Safety Monitoring Inc. Electrostatic Sensitive Device Handling
Procedure ........................................................... 16
Appendix B Wire Resistance In Ohms .................................... 17
CAUTION: FOR SAFETY REASONS THIS EQUIPMENT MUST BE OPERATED AND SERVICED BY QUALIFIED PERSONNEL
ONLY. READ AND UNDERSTAND INSTRUCTION MANUAL COMPLETELY BEFORE OPERATING OR SERVICING.
Unit I GENERAL INFORMATION
DESCRIPTION
Hydrocarbon gases absorb specific wavelengths of infrared energy. In the SIR100, modulated, broadband
infrared energy is focused by means of a gold plated reflector and passed along an open measurement path
to a sensing element tuned to a specific IR wavelength which is absorbed by most hydrocarbon gases. When
a hydrocarbon gas diffuses into the infrared path, some of the energy is absorbed by the gas. The signal
change detected by the tuned sensing element is proportional to the concentration of gas in the measurement
path. The SIR100 utilizes this principle to give you a reliable and simple to use combustible gas detector.
Through a unique and simple design that negates the need for mirrors and de-fogging heaters the SIR100
provides excellent performance in applications where reduced maintenance is the objective.
The Uni-Tran display unit provides a user friendly operator interface in plain text for calibration, gas level
display, diagnostic messages and relay configuration.
FEATURES
< Scrolling alpha-numeric LED display highly visible in all lighting conditions
< Easy, one person, non-intrusive calibration
< Tolerant to high levels of vibration
< No mirrors to be fogged, fouled, misaligned or cleaned
< Calibration gas can be applied externally to simulate actual field conditions
< Entire optical path is protected from airborne contamination, mist, dust or oil
< Sensor can be remotely mounted more than 2000 feet from display unit
< Low power consumption that works with 12 or 24Vdc systems
< Microprocessor based smart transmitter
< Conformal coated circuit boards
< Gas specific colour coded enclosure
Technical Specifications
Sensor Specifications
< Operating Temperature Range:
/C to +75/C (-40F to +167F)
-40
< Range of Detection:
0 to 100% LEL or 0 to 100% by volume (propane, methane, polypropylene, butane)**
1
< Accuracy:
±3% LEL up to 50% LEL ±5% LEL above 50% LEL
< Response Time:
<30 seconds to T90
< Linearity/Repeatability:
±3% LEL / ±2% LEL
< Weight:
0.9 Kg (2.0 lb)
< Enclosure Material:
Aluminum (optional stainless steel)
< Certification:
CSA and NRTL/C certified for hazardous locations. Class I, Division 1,
Groups B, C and D. IEC Rating Ex d IIB+H2 T5, NEMA 3R. Performance certified to CSA
22.2 No. 152
** For other gas please contact the factory
UNI-TRAN Specifications
< Operating Voltage Range:
10.5 to 32 Vdc
< Power Consumption (at 24 Vdc):
Nominal (160 mA, 3.8 Watts)
Maximum (190 mA, 4.5 Watts)
< Operating Temperature Range:
/C to +85/C (-40F to +185F)
-40
< Humidity Range:
0 to 100% Relative humidity, non-condensing
< Enclosure Material:
Copper Free Cast Aluminum
< Shipping Weight:
3.2 Kg (7.0 lb)
< Certification:
CSA and NRTL/C certified for hazardous locations. Class I, Division 1, Groups B, C and
D, NEMA 4X and 7. IEC Rating Ex d IIB+H2 T5
NOTE: Electronics only - CSA and NRTL/C certified for hazardous locations Class I,
Division 2 Groups B, C and D pending.
2
< Current Output (4-20mA):
Into a maximum loop impedance of 800 Ohms at 32 Vdc or 150 Ohms at 10.5 Vdc. Isolated
or non-isolated loop supply.
< Relay Contacts:
Form C contacts rated 1 Amp at 30 Vdc, 0.5 Amp at 125 Vdc. Selectable
energized/de-energized, latching/non-latching Configurable Fault, Low and High alarms.
< Dimensions:
Refer to Figure 1
Figure 1 Dimensions for Adalet enclosure Premium Plus
UNIT II SYSTEM INSTALLATION
INSTALLATION
Location of Sensors
There are no absolute rules for determining the quantity and location of gas detection instruments within a
particular facility, but care should be taken to locate the sensors in areas where gas escape may be expected
and where it is desirable to detect the presence of unwanted gas. Use redundancy where enhanced protection
or reliability is desired. Seek advice from experts who know the characteristics of the gas being detected, air
movement patterns and the facility. Use common sense and refer to various publications that discuss general
guidelines for your industry.
Unpacking
The UNI-TRAN Premium Plus is made up of two primary components. The housing and terminal board are
a single assembly to which the input is wired. The control module is a separate plug-in assembly. Since all
modern electronic equipment can be damaged by static electricity discharge it is important to discharge static
electricity from your body by touching a grounded metal object before handling the module. Loosen the
retaining screws and remove the module carefully from the housing by grasping the centre “pull” knob and
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