Instruction Manual

760004-A February 2002

Model NGA 2000 HFID

WARNING.

POSSIBLE EXPLOSION HAZARD

Ensure that all gas connections are made as labeled and are leak free. Improper gas connections could result in explosion or death.

CAUTION.

OVER-VOLTAGE SPIKING

If this analyzer module is used with a non-Rosemount Analytical power supply, adding Rosemount Analytical PN 903341 Current Protector in series with the 24V positive power line will prevent over- voltage spiking and resultant fuse blowing when powering up the instrument.

CAUTION .

PRESSURIZED ENCLOSURE

This enclosure shall not be opened unless the area is known to be free of flammable materials or unless all devices within have been de-energized.

Area classification for the protected enclosure:

Nonclassified.

Pressurization: Type Z

Temperature Identification Number: T4A

Power shall not be restored after enclosure has been opened (or loss of purge) until enclosure has been purged for a minimum of 6 (six) minutes at the minimum pressure of 689 hPa (10 psig).

P-4 Preface

Rosemount Analytical Inc. A Division of Emerson Process Management