Specifications

INSTALLATION
Analysis Enclosure Critical settings and control:
1. Set MicroCEM Pressure guage (P1)to 5 psig +/- 0.5psig. Pressure set by BPR located behind
gauge in detector section. If CO and NOx response times are sluggish this pressure can be
increased.
2. Set Calibration gas cylinder dual stage pressure regulators to 10 to 20 psig.
3. Set Flowmeter (F1) to 500cc to 1500cc per min.
4. TV1 is used to balance the flow between a probe and local calibration. It is located beside the
solenoid valve manifold.
5. Set Ozone air pressure to 12 psig.
6. Exhaust line should be free of any backpressure. Immediately vent into ½” pipe.
7. Time Share Box:
TV1: Use to equalize cal gas flow between SHU1 and SHU2.
TV2: Use to equalize cal gas flow between SHU1 and SHU2.
TV3: Use to equalize sample flow between SHU1 and SHU2.
TV4: Use to equalize sample flow between SHU1 and SHU2.
8. Pressure Switch: The pressure switch is located beside the pressure gauge. If the sample or
cal gas pressure flow below 2.5 psig the MicroCEM will give trouble alarm. The alarm will turn
off upon pressure above 4 psig.
3.2 Process and Calibration Gas Connection
Besides sample gas, the µCEM requires other gases for operation. In most cases, one
or more Calibration Standards must be provided. These should be cylinders of gas
which closely resemble the expected sample, both in species and concentrations.
These calibration gases are normally introduced into the system as an input to the
Sample Conditioning Plate Option or sample conditioning may be provided by others.
Each gas cylinder should be equipped with a clean, hydrocarbon free two-stage
regulator with indicating gauges of approximately 0 to 3000 psig (0 to 20.7 Mpa) for
cylinder pressure and 0 to 100 psig (0 to 689 Kpa) for delivery pressure. Regulators
should have a metallic as opposed to elastomeric diaphragm, and provide for ¼ inch
compression fitting outlet and should be LOX clean.
NOTE: All connections specified in the Installation Drawing, in conjunction with
the Application Data Sheet, should be made.
Rosemount Analytical µCEM Continuous Analyzer Transmitter 3–5