Model NGA2000 NDIR

Instruction Manual

748332-F April 2003

Analyzer Module Set Up, and

Calibration Parameters.

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- 5 on page 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.

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

Table 3-1.

NDIR Analyzer Module Alarms

 

Rosemount Analytical Inc. A Division of Emerson Process Management

Startup and Operation 3-5