3-24 | Model 920 Multi-Gas Analyzer
Termination points for the Remote Calibration/Remote Backpurge input
signal, analog output signals, alarm relay contacts, and AC power will
vary, depending on whether the analyzer is mounted only on a backpan
or in a shelter, or if it is for use in a General Purpose or Hazardous Area.
Refer to drawings in this chapter and Final “As-Built” drawings in the ana-
lyzer Documentation Package.
Purged Analyzer (Hazardous Location) Applications
Install and connect a power-disconnect switch (breaker), rated for at
least 250 VAC, 3 A and certified for the hazardous location (to satisfy
local electrical codes, the switch must be certified by the local author-
ity for the appropriate hazardous location). The power-disconnect
switch (breaker) must be connected to and mounted near the analyzer,
in an easily accessible area. The switch (breaker) must be clearly la-
beled (e.g., “AMETEK Model 920 Analyzer Main AC Power Discon-
nect Switch”).
For safety reasons during maintenance, this switch allows the main
AC power to be disconnected from the analyzer prior to performing
service on the analyzer.
This switch (breaker) is to be supplied by
the customer/end user.
Purged Analyzer (Hazardous Location) Applications
Use a soft, nonabrasive cloth to gently clean the joining surfaces
(flamepath) of the Disconnect Enclosure and its door. Close the door
and replace at least (1) M10 screw while completing the installation.
This will ensure the flamepath is not inadvertently damaged.
All electrical connections must be made according to local wiring
regulations and electrical codes.
Refer to Figure 3-7 (Customer Signal Connections) and Figure 3-8
(Analyzer AC Wiring) for termination points. For shelter instal-
lations, refer to Final “As-Built” shelter drawings in the analyzer
Documentation Package.
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CAUTION
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CAUTION
NOTE
Содержание 920
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Страница 60: ...2 32 Model 920 Multi Gas Analyzer ATEX and IECEx certified Model 920 Analyzers are marked with this label ...
Страница 71: ...Installation and Start Up 3 11 Figure 3 4 Optical Bench Measuring Cell assembly ...
Страница 99: ...Installation and Start Up 3 39 Figure 3 11 Over Temp alarm reset switch SW300 Termination board ...
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Страница 173: ...Controller User Interface 4 65 Figure 4 8 Customer signal connections ...
Страница 187: ...Maintenance and Troubleshooting 5 11 Figure 5 1 Measuring Cell assembly ...
Страница 211: ...Maintenance and Troubleshooting 5 35 Figure 5 5 Optical Bench Chopper Assembly Maintenance Diagram ...
Страница 226: ...5 50 Model 920 Multi Gas Analyzer Figure 5 8 Flameproof Heater Seal Assembly layout WX 14324 1A ...
Страница 227: ...Maintenance and Troubleshooting 5 51 Figure 5 9 Flameproof Heater Seal internal component layout 100 1622 1A ...
Страница 228: ...5 52 Model 920 Multi Gas Analyzer Figure 5 10 Oven Heater and Temperature Sensor wiring WX 14161 ...
Страница 243: ...Maintenance and Troubleshooting 5 67 Figure 5 13 Over temp alarm reset switch SW300 Termination board ...
Страница 262: ...A 2 Model 920 Multi Gas Analyzer Ribbon Cable Interconnect WX 102836 ...
Страница 263: ...Appendix A Drawings A 3 GP Lower Enclosure to Electronics Wiring CE Analyzers WX 102810 ...
Страница 264: ...A 4 Model 920 Multi Gas Analyzer Heater and Sensor Wiring GP Div 2 Analyzers WX 102851 ...
Страница 265: ...Appendix A Drawings A 5 Heater and Sensor Wiring CE Zone 1 Analyzers WX 102852 ...
Страница 266: ...A 6 Model 920 Multi Gas Analyzer Lower Cabinet Wiring CE GP Analyzers 120V 100 1341 3 ...
Страница 267: ...Appendix A Drawings A 7 Lower Cabinet Wiring CE GP Analyzers 240V 100 1342 3 ...
Страница 268: ...A 8 Model 920 Multi Gas Analyzer Signal Wiring PD GP Div 2 CE Zone 1 Analyzers WX 102815 ...
Страница 270: ...A 10 Model 920 Multi Gas Analyzer 15V and 5V Power Supply DC Wiring GP Div 2 CE Zone 1 Analyzers WX 102811 ...
Страница 271: ...Appendix A Drawings A 11 24V Power Supply DC Wiring CE Zone 1 Analyzers WX 102812 ...
Страница 272: ...A 12 Model 920 Multi Gas Analyzer RS 232 Communications Cable Wiring 300 9480 ...
Страница 273: ...Appendix A Drawings A 13 RS 232 RS 485 Module Wiring CE Zone 1 GP Div 2 Analyzers 100 2185 ...
Страница 274: ...A 14 Model 920 Multi Gas Analyzer Microcontroller Board 100 0117 ...
Страница 275: ...Appendix A Drawings A 15 Host Controller Board Display Interface 100 0138 ...
Страница 276: ...A 16 Model 920 Multi Gas Analyzer Model 9xx Series Analyzer Type 200 Disconnect Enclosure Details ...
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