Instruction Manual

760007-A July 2003

Model NGA2000 PMD

1-4 FEATURES

Among the features incorporated into the PMD Analyzer Module is a flow splitter (≈2:1) that allows for greater sample flow, decreased lag time and faster analyzer response.

The "Time Alignment" feature can be used to delay sending the Primary Variable from the PMD Analyzer Module for up to 30 seconds in

0.1second intervals. This feature allows Pri- mary Variables form more than one PMD Analyzer Module to be "time aligned" if nec- essary.

 

Displacement

 

 

Torque

 

 

Restoring

Electromagnetic

 

Axis

 

Torque

 

 

Restoring

 

Balancing Weight

Current

 

 

Electromagnetic

 

 

Axis

 

Nitrogen-Filled Hollow Glass

 

 

 

 

Test Body

Current Loop

Mirror Restoring

Balancing

Current

Weight Platinum/Nickel Alloy

Suspension Ribbon

TEST BODY DETAIL

Displacement

 

 

 

Torque

 

 

 

Restoring

 

 

 

Torque

 

 

 

 

Restoring

 

 

Magnet

Current

 

 

Test Body

 

 

 

LED Source

DETECTOR/MAGNET

 

ASSEMBLY

 

 

 

SIGNAL CONDITIONING

SIGNAL OUTPUT

Shaded Pole Pieces (4)

 

ASSEMBLY

TO NETWORK

Zero

Span

 

 

 

 

 

 

Dual Photocell

 

 

 

NULL BALANCE SYSTEM

Figure 1-2. Trace Oxygen Detector Coulometric Principle

1-2

Description and Specifications

Rosemount Analytical Inc. A Division of Emerson Process Management