Emerson MicroCEM Dokumentacja Pobierz pdf (Strona 80)

STARTUP and OPERATION

zone may show than the AC/Heater unit fan may have failed or a possible defective

thermocouple.

*PDD Temp: For systems with NOx a cylindrical NOx detector assy is located in the

detector section. Internal to the detector assy a small peltier device is operating and

must operate at 0 degrees C. The temperature should never deviate +/- .05 degrees C

from the setpoint of zero or the NOx readings may drift. Integral will typically run

between 40 to 70%.

*PMT Temp: This temperature is for the detector assy heater core. Setting is set to 52

degrees C. Temperature should not drift more than 0.2 degrees C or NOx drift may

occur. Excessive temperature variation may be caused by either poor zone temperature

control or a faulty heater.

*Conv Temp: This temperature is for the NOx converter assembly. Temperature setting

is 330 degrees C. Temp should not vary more than 1 degrees C. or NOx

measurements will drift. A faulty heater will cause temp variations.

Note that when the enclosure door is opened that all of the above temperature setting

may be affected and will take a short about of time to react and control to the desired

temperatures.

Figure 4.16 - View Data Logs

Table 4.10 - Average Period Selection

Note: The page header

was scrolled out of view

to show all the selection

options, but it can be

seen in Fi

ure 4.17

If Most Recent is

selected, the month day

and hour do not need to

be selected.

Select the ending hour

to view (applicable only

to 1 minute averages)

Select 1 min., 15 min.,

1 hour or 24 hour

averages.

Average Period Time Range

Displayed

1 Minute 1 Hour

15 Minutes 1 Day

1 Hour 3 Days

24 Hours 3 Months

Rosemount Analytical µCEM Continuous Analyzer Transmitter 4-2

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 118 119

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Emerson MicroCEM Dokumentacja Strona 80