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Instruction Manual
760007-A
July 2003
1-2 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
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
0.1 second intervals. This feature allows Pri-
mary Variables form more than one PMD
Analyzer Module to be "time aligned" if nec-
essary.
Figure 1-2. Trace Oxygen Detector Coulometric Principle
SIGNAL CONDITIONING
ASSEMBLY
Dual Photocell
Displacement
Tor
q
ue
Restoring
Tor
q
ue
Magnet
Platinum/Nickel Alloy
Suspension Ribbon
Balancing
Weight
Balancing Weight
Nitrogen-Filled Hollow Glass
Test Body
Mirror
Current Loop
TEST BODY DETAIL
Electromagnetic
A
xis
Electromagnetic
A
xis
Restoring
Current
Restoring
Current
Displacement
Tor
q
ue
Restoring
Torque
DETECTOR/MAGNET
A
SS
EMBLY
Test Body
Shaded Pole Pieces (4)
LED Source
Restoring
Current
S
p
an
Zero
SIGNAL OUTPUT
TO NETWORK
NULL BALANCE SYSTEM