Model DM-700
Model DM-700
iii
Table of Contents
1.
Introduction ..................................................................................................................................................1
1.1
Description.......................................................................................................................................... 1
1.2
Sensor Electronics Design .................................................................................................................. 2
1.3
Modular Mechanical Design............................................................................................................... 3
1.4
Intelligent Plug-in Electrochemical Gas Sensor ................................................................................. 4
2.
Installation ....................................................................................................................................................5
2.1
ATEX Operational Guidelines for Safe Use....................................................................................... 5
2.2
Sensor Placement ................................................................................................................................ 6
2.3
Sensor Contaminants and Interference ............................................................................................... 7
2.4
Mounting Installation.......................................................................................................................... 7
2.5
Electrical Installation ........................................................................................................................ 10
2.6
Field Wiring ...................................................................................................................................... 11
2.7
Initial Start Up................................................................................................................................... 13
2.7.1
Toxic Gas Sensors ........................................................................................................................ 13
2.7.2
O
2
Deficiency Sensors .................................................................................................................. 14
3.
Operation ....................................................................................................................................................15
3.1
Programming Magnet Operating Instructions................................................................................... 15
3.2
Operator Interface ............................................................................................................................. 16
3.3
Normal Operation ............................................................................................................................. 17
3.4
Calibration Mode .............................................................................................................................. 18
3.4.1
AutoZero....................................................................................................................................... 18
3.4.2
AutoSpan ...................................................................................................................................... 18
3.5
Program Mode .................................................................................................................................. 21
3.5.1
View Sensor Status....................................................................................................................... 21
3.5.2
Set AutoSpan Level ...................................................................................................................... 22
3.5.3
Set Serial ID ................................................................................................................................. 23
3.5.4
Set Range...................................................................................................................................... 23
3.5.5
Signal Output Check..................................................................................................................... 24
3.5.6
Restore Factory Defaults .............................................................................................................. 24
3.6
Program Features .............................................................................................................................. 25
3.6.1
Operational Features..................................................................................................................... 25
3.6.2
Fault Diagnostic/Failsafe Features ............................................................................................... 26
4.
RS-485 Modbus™ Protocol .......................................................................................................................29
Content Description.............................................................................................................................................29
5.
Service and Maintenance............................................................................................................................31
5.1
Calibration Frequency....................................................................................................................... 31
5.2
Visual Inspection .............................................................................................................................. 31
5.3
Condensation Prevention Packet....................................................................................................... 31
5.4
Replacement of Intelligent Plug-in Sensor ....................................................................................... 31
5.5
Replacement of ITM ......................................................................................................................... 32
5.6
Replacement of DM-700 Sensor Assembly...................................................................................... 33
6.
Troubleshooting Guide ...............................................................................................................................34
7.
Customer Support and Service Policy ........................................................................................................37
7.1
Warranty Notice................................................................................................................................ 37
8.
DM-700 Sensor Warranty ..........................................................................................................................38
9.
Appendix ....................................................................................................................................................39
9.1
Specifications.................................................................................................................................... 39
9.2
Interference Table ............................................................................................................................. 42
9.3
Proper Application and Maintenance of Acrylonitrile Sensor .......................................................... 48
9.4
Spare Parts, Sensor Accessories, Calibration Equipment ................................................................. 48
10.
Revision Log ..........................................................................................................................................50
Содержание DM-700
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