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Instruction Manual
748467-A
January 2002
1-22 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model MicroCEM
Paramagnetic
O
2
Electro-
Chemical
O
2
NDIR
CO
Chemiluminescense
NO
X
Linearity
< ± 1% < ± 1% < ± 1% < ± 1%
1
Zero Drift
< ± 1% /day < ± 1% /day < ± 1% /day < ± 1% /day
1
Span Drift
< ± 1% /day < ± 1% /day < ± 1% /day < ± 1% /day
1
Repeatability
< ± 1% < ± 1% < ± 1% < ± 1%/day
1
Response Time (t90)
10< ± t90< ±-15 10< ± t90< ± 15 15s< ± t90< ± 20s 15s< ±-t90< ± 20s
Influence of Ambient
Temperature
(-20°C to 45°C)
On Zero
On Span
< ± 1%
< ± 1%
< ± 1%
< ± 1%
< ±-2%
< ±-2%
< ±-2%
< ±-2%
b. Probe/Sample Handling
Power ............................................ Universal Power Supply 85 – 264 VAC, 50 – 60 Hz, + 10%
500 Watts Maximum at Start Up. 250 Watts Nominal
Mounting........................................ Wall Mount
Area Classification......................... General Purpose / NEMA 4X (IP65) Fiberglass Enclosure
Ambient Range
Temperature .......................... -30° to 50° Celsius
Relative Humidity................... 5 to 99%
Instrument Weight ......................... 75 lbs. Typical
Dimensions.................................... 24“ x 24“ x 12“ (HxWxD)
Stack Sample Moisture ................. Up to 25%
Sample Cooler............................... Thermo Electric dual pass Chiller.
Permeation Tube (-30° C) dewpoint.
Customer instrument air required @ 5 L/M, -40° C dewpoint
Max. Stack Temperature............... 500° F (Higher temperatures available by utilizing elongated
spools)
Stack Pressure .............................. -5 to 15 inches H
2
O
Sample Flow Rate......................... 1 L/min from sample handling enclosure to Analysis enclosure
Response Time (Max distance between Analysis Enclosure and Sample Conditioning/Probe)
Enclosure is 300'. (Response time is 20 seconds/100' w/1/4" tub-
ing).
Probe Length................................. 48" length 316 SS Probe with .5 micron sintered filter. (Customer
to cut to length in field.)
Mounting Flange............................ Optional 4“ 150#
Sample Pump................................ 316 SS diaphragm type
Instrument Air Requirements......... Instrument grade air required. 15 SCFM @ 60 -100 PSIG (30 sec-
onds 2 times per day). (Pressure Regulation by Customer.)
1
0-10ppm NOx range is <± 3%.