Emerson World Class 3000 Bedienerhandbuch PDF herunterladen (Seite 16)

Instruction Manual

106-300NFX Rev. 4.2

January 2002

1-4 Description Rosemount Analytical Inc. A Division of Emerson Process Management

World Class 3000

e. Handling the Oxygen Analyzer

It is important that printed circuit

boards and integrated circuits are

handled only when adequate antistatic

precautions have been taken to pre-

vent possible equipment damage.

The oxygen analyzer is designed for

industrial application. Treat each

component of the system with care to

avoid physical damage. The probe

contains components made from ce-

ramics, which are susceptible to

shock when mishandled. See Safety

Data Sheets 1M03243, 1M03226, and

1M03296 for safety related informa-

tion.

NOTE

Retain packaging in which the oxygen

analyzer arrived from the factory in

case any components are to be

shipped to another site. This packag-

ing has been designed to protect the

product.

f. System Considerations

Prior to installation of your Rosemount

CENELEC approved World Class 3000

Oxygen Analyzer with Intelligent Field

Transmitter make sure that you have all of

the components necessary to make the

system installation. Ensure that all the com-

ponents are properly integrated to make the

system functional.

Once you have verified that you have all the

components, select mounting locations and

determine how each component will be

placed in terms of available power supply,

ambient temperatures, environmental con-

siderations, convenience, and serviceability.

A typical system installation is illustrated in

Figure 1-2. Figure 1-3 shows a typical

system wiring. For details on installing the

individual components of the system,

refer to Section 2, Installation.

After selecting the probe mounting location,

provision should be made for a platform

where the probe can be easily serviced.

The intelligent field transmitter (IFT) can be

located up to 45 m (150 ft) cabling distance

from the probe when used without optional

heater power supply (HPS). When the sys-

tem includes the optional HPS, the HPS can

be located up to 45 m (150 ft) cabling

distance from the probe and the IFT may be

located up to 364 m (1200 ft) cabling

distance from the HPS.

A source of instrument air is required at the

probe for reference gas use. Since the

probe is equipped with an in-place calibra-

tion feature, provision should be made for

connecting test gas tanks to the oxygen

analyzer when the probe is to be calibrated.

If the test gas bottles will be permanently

hooked up, a check valve must be con-

nected to the calibration gas fitting on the

probe junction box. This is to prevent

breathing of calibration gas line and subse-

quent gas condensation and corrosion. The

check valve is in addition to the stop valve

in the test gas kit or the solenoid valve in

the multiprobe test gas sequencer units.

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