Rosemount Analytical NGA 2000 - Tables; NDIR Analyzer Module Alarms

S
TARTUP AND
O
PERATION
3-6
June 1997 Rosemount Analytical 748332-DNGA 2000 Non-Dispersive Infrared Analyzer
DISPLAY MESSAGE DESCRIPTION TYPE
BAROMETER System Barometer WARNING
CASE TEMP Case Temperature WARNING
CHOP SPEED Chopper Speed WARNING
CRUDE NOISE Calculated Noise WARNING
DET SIG Detector Signal WARNING
DET TEMP Detector Temperature WARNING
LIN ERROR Linearizer Error WARNING
N15 VOLTS Power Supply, -15V WARNING
P12 VOLTS Power Supply, +12V WARNING
P15 VOLTS Power Supply, +15V WARNING
P24 VOLTS Power Supply, +24V WARNING
P5 VOLTS Power Supply, +5V WARNING
PERCENT MOD Percent Modulation WARNING
RAW SIGNAL Raw Signal WARNING
SVFLOW Sample Bypass Flow WARNING
SW ERROR Software Error FAILURE
2. Using the
↓
arrow, select Zero Ranges, press ENTER and, using the up/down
arrows, toggle to SEPARATE. Do the same for the Calibrate Ranges selection. Do
not press ESCAPE at any time unless retention of prior settings is desired.
3. Return to the
Main Menu
and make the following selections: Expert Controls and
Setup, Expert Controls, CAL DATA softkey, FACTORS softkey, and Range 1 (2, 3,
4) Factors (do Steps 4 and 5 for each range).
4. Select Zero Offset, press ENTER, adjust the value to 500000 with the
↑
and
↓
arrow keys, and press ENTER. Do not press ESCAPE at any time unless retention
of prior settings is desired.
5. Refer to the Data Sheet in the rear of this manual for Span Factors as originally set
at the factory. Select Span Factor, press ENTER, adjust the value to match the
values on the Data Sheet with the
↑
and
↓
arrow keys, and press ENTER. If Data
Sheet is not available, enter 0.000015 with the
↑
and
↓
arrow keys, and press
ENTER. Do not press ESCAPE unless retention of prior settings is desired.
6. Attempt to recalibrate the Analyzer Module according to the procedure outlined at
the beginning of Section 3.4. If recalibration fails, return to the
Range Factors
menu, readjust factors and try calibrating again.
Another cause of failure to calibrate is the following: The value for "Maximum range"
is lower than the upper limit value for the range in use. See the
Range Settings
menu for this information (See Figure 3-11).
T
ABLE
3-1. NDIR A
NALYZER
M
ODULE
A
LARMS