NGA 2000 CLD

Instruction Manual

HAS60E-IM-HW

June 2007

Leak Test

The CLD Analyzer Module is completely tested at the factory for gas leakage (leakage rate - 7.5 hPa/min. with He or - 2.5 hPa/min. with N2). The user is responsible for leakage testing at the inlet and outlet fittings on the rear panel minimum twice a year (see Section 4-8).

2-5 ELECTRICAL CONNECTIONS

NOTE

Electrical installation must be in compliance with the requirements of NAMUR and DIN VDE and/or any applicable national or local codes (like local electricity supply enterprises (ESE)).

Contaminants

White crystal deposits on the windows of the reaction chamber, and the clogging of capillaries and vent are usually due to sample contaminates such as ammonia reacting with the high ozone levels and NO components.

To eliminate the contaminates, the sampling system should be reworked or a preventive maintenance program developed (if dropout is not excessive). Another source of crystalline formation is contaminated air.

NOTE

Contamination is a result of a not properly working sample handling systrem and is not be covered by Emerson Process Management warranty.

Refer to figure 2-3. Two electrical connections are required on the Analyzer Module: POWER and NET- WORK. On the Analyzer Module, two NETWORK connectors are available, either of which is appropriate for:

1.Interconnection with the Backplane of the Plat- form. (See Instruction Manual for the NGA 2000 Platform).

2."Daisy-chaining" with other NGA 2000 compo- nents.

Connect Analyzer Module POWER to a 24 VDC, 10 A power source, either the Platform or external power source.

Regulator Adjust Slot

Metering Valve

 

 

Network

FLOW

LON

Connection “1”

 

1

 

 

LON

SAMPLE

2

BALANCE

Polarity

1 +

24 V 2 -

3 GND

Network Connection “2”

Power

Connection

REGULATOR

T 6A

~

250 V

Fuse

Figure 2-3: Front Panel Controls and Electrical Connections

2 - 4 Installation

Emerson Process Management GmbH & Co.OHG