PN 9000-133-VE, Rev U
Z-Purge Connections (Optional)
• Connect instrument air to the analyzer Z-purge inlet. Maintain the pressure
and flow as directed on the Z-purge warning label.
• You must provide a protective gas supply with an alarm for a loss of pres-
sure indication in order to meet regulatory requirements.
• You must not exceed the maximum temperature rating listed in the speci-
fications.
• Process pressure is assumed to always be subatmospheric (vacuum) unless
the High-pressure option is installed.
• The protective gas supply shall be equipped with an alarm to indicate
failure of the protective gas supply to maintain the minimum pressurized
enclosure pressure.
• The indicator shall be located for convenient viewing.
• The indicator shall indicate the enclosure pressure.
• The sensing point for the indicator shall be located to take into account
the most onerous conditions of service.
• There shall be no devices between the pressurized enclosure and the pro-
tective gas supply alarm other than an isolating valve and/or a pressure of
flow controlling mechanism.
• Any isolating valve shall:
- Be marked
WARNING – PROTECTIVE GAS SUPPLY VALVE -
FOLLOW INSTRUCTIONS BEFORE CLOSING
- Be capable of being sealed or secured in the open position.
- Have an indication of whether it is open or closed.
- Be located immediately adjacent to the pressurized enclosure.
- Be used only during servicing of the pressurized enclosure.
• Any pressure or flow controlling mechanism, if adjustable, shall require a
tool to operate it.
• No filters shall be fitted between the pressurized enclosure and the protec-
tive gas system alarm.
• No isolating valve shall be fitted between the indicator and the pressurized
enclosure.
Installation and Start-Up
|
2-21
Содержание WDG-V
Страница 1: ...WDG V WDG VC WDG VCM WDG VM Combustion Analyzer USER MANUAL PN 9000 133 VE Rev U 5000 017 PI rA...
Страница 12: ...PN 9000 133 VE Rev U This page intentionally left blank xii Thermox WDG V VC VCM VM...
Страница 60: ...PN 9000 133 VE Rev U Figure 2 16 RCU Connections 2 34 Thermox WDG V VC VCM VM...
Страница 93: ...PN 9000 133 VE Rev U Figure 3 4 Thermocouple replacement Maintenance and Troubleshooting 3 19...
Страница 97: ...PN 9000 133 VE Rev U Figure 3 6 Flow sensor replacement Maintenance and Troubleshooting 3 23...
Страница 101: ...PN 9000 133 VE Rev U Figure 3 9 Combustibles Block Heater Replacement Maintenance and Troubleshooting 3 27...
Страница 103: ...PN 9000 133 VE Rev U Figure 3 10 Sensor board removal Maintenance and Troubleshooting 3 29...
Страница 124: ...PN 9000 133 VE Rev U This page intentionally left blank 4 10 Thermox WDG V VC VCM VM...