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SIGNAL GROUP LTD
SIGNAL NOXGEN III
NO2 CONVERTER TESTER
OPERATION MANUAL
NOX III/MAN
SIGNAL GROUP LTD
12 Doman Road
Camberley
Surrey
GU15 3DW
UK
Tel: +44(0) 1276 682841
Fax: +44(0) 1276 691302
e-mail: instruments@signal-group.com
site: www.signal-group.com
s/sales/masters/manuals/noxgman.doc
Page 1 of 17
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Summary of Contents for Signal NOXGEN III
- Page 1 SIGNAL GROUP LTD SIGNAL NOXGEN III NO2 CONVERTER TESTER OPERATION MANUAL NOX III/MAN SIGNAL GROUP LTD 12 Doman Road Camberley Surrey GU15 3DW Tel: +44(0) 1276 682841 Fax: +44(0) 1276 691302 e-mail: instruments@signal-group.com site: www.signal-group.com s/sales/masters/manuals/noxgman.doc Page 1 of 17...
- Page 2 The Signal Group Ltd. will not assume any liability to anyone for any loss or damage caused by any error or omission in the manual, whether such omission is the result of negligence or any other cause.
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Page 3: Table Of Contents
SIGNAL GROUP LTD INDEX PAGE 1.00 UNPACKING INSTRUCTIONS 2.00 INTRODUCTION 2.01 Principle of Operation 2.02 The Ozonizer 2.03 Flow Scheme Diagram 2.04 Remote Control Flow Scheme Diagram 3.00 INSTALLATION 3.01 General 3.02 Installation Drawing 3.03 Span Gas Connection 3.04 Oxygen/Air Inlet 3.05 Outlet... -
Page 4: Unpacking Instructions
SIGNAL GROUP LTD 1.00 UNPACKING INSTRUCTIONS This instrument is packed for general freight purposes. It should withstand the occasional “bumps and knocks” which occur during transit. Please check the instrument for damage however, and report any damage within 24 hours to the factory or its Sales Office or Distributor. -
Page 5: Introduction
Ozone is generated by a high energy lamp using an electronic pulse, which can be varied to adjust the Ozone level. The Noxgen III produces no NO from air, in contrast to the high voltage corona discharge technique. -
Page 6: The Ozonizer
2.02 THE OZONIZER The signal Model NOXGEN III utilises a very efficient high energy lamp system which ionises oxygen to ozone. The ozonizer is built into a fully self contained enclosure within the instrument. This should not be opened by unauthorised personnel because very high voltages exist within the enclosure, even with power off. -
Page 7: Flow Scheme Diagram
SIGNAL GROUP LTD Figure 2.03 Flow Scheme Diagram s/sales/masters/manuals/noxgman.doc Page 7 of 17... -
Page 8: Remote Control Flow Scheme Diagram
SIGNAL GROUP LTD Figure 2.04 Remote Control Flow Scheme Diagram. s/sales/masters/manuals/noxgman.doc Page 8 of 17... -
Page 9: Installation
3.01 GENERAL The Signal NOXGEN III comes in a 19” rack type, 3 units high enclosure. It can be bench top used or fitted into a 19” rack console. For bench top use there are extendible feet at the front which can be used to tilt the angle of the instrument back for ease. -
Page 10: Installation Drawing
SIGNAL GROUP LTD Figure 3.02 Installation Diagram. s/sales/masters/manuals/noxgman.doc Page 10 of 17... -
Page 11: Span Gas Connection
Also, the Signal Model NOXGEN III has been carefully designed so that no nitric oxide is generated from the nitrogen in air, which means that converter efficiency testing using air can still be done without inaccuracies. -
Page 12: Remote Control Connections
SIGNAL GROUP LTD 3.07 REMOTE CONTROL CONNECTIONS The remote control option is to enable you to control the gas selection functions using TTL inputs. The TTL levels can be either OV inputs via the earth return pins or, for people without a transistor logic controller or computer, a simple short circuit wire link with a switch for ON and OFF can be connected between any of the four earth pins and the function pin. -
Page 13: Operation Controls
SIGNAL GROUP LTD Figure 4.00 Operational Controls s/sales/masters/manuals/noxgman.doc Page 13 of 17... -
Page 14: Operation
SIGNAL GROUP LTD 4.01 OPERATION WARNING: DO NOT LEAVE OZONE ON WITHOUT GAS FLOW Ensure that all connections have been made in accordance with the installation instructions. Set 10 psig or 0.75 bar gauge (approx.) to regulators of both the span gas and NO cylinder and the oxygen/air cylinder. - Page 15 SIGNAL GROUP LTD Switch off the Ozone and allow the NOx analyser reading to stabilise and record this new reading (Reading D). Shut off the oxygen flow valve on the front panel and observe the analyser reading. This reading should now represent the same as obtained in Step 6.
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Page 16: Remote Control Operation
With power off, all solenoids will close and gas will be automatically shut off. (This is not so with the remote control versions). Having set up the Noxgen III in the normal way, to carry out remote control converter test you simply follow the following steps:- Switch power on. - Page 17 SIGNAL GROUP LTD Figure 4.02 Chart Display s/sales/masters/manuals/noxgman.doc Page 17 of 17...
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