Model NGA2000 NDIR

Instruction Manual

748332-F April 2003

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Expert controls and setup

Expert analyzer controls...

Auxiliary module controls...

System set up...

Analyzer Module set up...

Auxiliary Module set up...

Local I/O set up...

For Expert analyzer

controls, Auxiliary module controls, and System set up menus, see preceding flow chard. Local I/O set up information is included in the I/O Modules manual.

Analyzer module set up

Calibration gas list...

Calibration parameters...

Gas measurement parameters...

Analyzer parameter list...

Physical measurement parameters...

Displayed physical parameters...

Analyzer tag:

IR

Auxiliary module set up

Select an auxiliary module for set up Local I/O set up...

Module Tag

Module Tag

Module Tag

Module Tag

Module Tag

Module Tag

Module Tag

Calibration gas list

Zero gas - range 1:

0 ppm

Span gas - range 1:

9.3 ppm

Zero gas - range 2:

0 ppm

Span gas - range 2:

19.3 ppm

Zero gas - range 3:

0 ppm

Span gas - range 3:

101.1 ppm

Zero gas - range 4:

0 ppm

Span gas - range 4:

247.1 ppm

Calibration...

 

#4

Calibration Parameters

Calibration adjustment limits: enabled

Calibration averaging time: 5 Secs

Calibration failure alarm:

Yes

Cal failure error allowed:

5%

Calibration time out:

60 Secs

Zero ranges:

TOGETHER

Span ranges:

SEPARATE

Measurement parameters

Linearization parameters...

Response time/delay parameters...

Range setting...

Units...

Linearization functions...

Zero/Span Calibration

See #2 in Figure 3-10

Linearization parameters

Range 1 linearizer:

Enabled

if enabled, uses curve no.:

1

Range 2 linearizer:

Enabled

if enabled, uses curve no.:

2

Range 3 linearizer:

Enabled

if enabled, uses curve no.:

3

Range 4 linearizer:

Enabled

if enabled, uses curve no.:

4

Case temperature for coefficients: 45°C Set coefficients…

Response time/delay parameters

Range 1 t90 time:

10

Secs

Range 2 t90 time:

1

Secs

Range 3 t90 time:

1

Secs

Range 4 t90 time:

1

Secs

LON update rate:

1 per Sec

Output delay time:

0

Secs

Range Settings

Minimum range:

10 ppm

Maximum range:

5000 ppm

Range 1 lower limit:

0 ppm

Range 1 upper limit:

10 ppm

Range 2 lower limit:

0 ppm

Range 2 upper limit:

100 ppm

Range 3 lower limit:

0 ppm

Range 3 upper limit:

250 ppm

Range 4 lower limit:

0 ppm

Range 4 upper limit:

1000 ppm

#5

 

 

Linearity coefficients

Curve 1 (2,3,4)

 

AO coefficient:

1.34523E-4

A1 coefficient:

0.983751

A2 coefficient:

0.115751

A3 coefficient:

1.11575E-6

A4 coefficient:

7.3421E-12

Curve upper limit:

10 ppm

Curve over-range:

 

10%

Curve under-range:

 

5%

Status:

Enabled

Polynomial set up

 

Range to be linearized:

 

1

Current span gas:

9.69 ppm

Calculated polynomial order :

4

Gas values shown as:

Percent

Gas concentrations...

 

 

Analyzer function:

Ready

Gas concentrations

Point 1

 

 

Gas value:

 

0

Raw reading:

 

0 ppm

Linearized values:

 

0 ppm

Point 2

 

 

Gas value:

 

10

Raw reading:

11 ppm

Linearized values:

10 ppm

Point to be measured:

Point 1

Analyzer function:

Ready

Midpoint correction set up

Range 1 (2,3,4)

 

Correction:

Disabled

Point being measured:

 

Pt 1

Point 1 gas concentration: 100 ppm

Point 2 gas concentration: 120 ppm

Point 3 gas concentration: 150 ppm

Dependent on which auxiliary module is present on the network.

See I/O Modules manual.

Analyzer Parameter List

Analyzer tag:

IR-CO2

First line’s parameter:

Flow

Second line’s parameter:

Flow

Third line’s parameter:

Flow

Fourth line’s parameter:

Flow

Linearization parameters...

 

Units

Gas measurement units:

ppm

Pressure measurement units:

psig

Temperature measurement units:

F

Variables are still sent as the basic SI unit.

Linearization functions

Polynomial set up...

Midpoint correction set up...

Use the polynomial set up to generate a

linearizing polynomial from up to 20 gases.

Linearity coefficients

See #5 above

NEXT

Point 1 reading:

100 ppm

Point 2 reading:

120 ppm

Point 3 reading:

150 ppm

Span gas value:

100 ppm

Analyzer function:

Ready

Analyzer Parameter List

Primary Variable Parameters

Control mode:

LOCAL

Output delay time:

0 Secs

Range 1 upper limit:

10 ppm

Range 2 upper limit:

100 ppm

Range 3 upper limit:

250 ppm

Range 4 upper limit:

1000 ppm

Range 1 lower limit:

0 ppm

Range 2 lower limit:

0 ppm

Range 3 lower limit:

0 ppm

Range 4 lower limit:

0 ppm

Analyzer Parameter List

Primary Variable Parameters

 

Range 1 t90 time:

10

Secs

Range 2 t90 time:

1

Secs

Range 3 t90 time:

1

Secs

Range 4 t90 time:

1

Secs

Linearizer on range 1:

Enabled

Linearizer on range 2:

Enabled

Linearizer on range 3:

Enabled

Linearizer on range 4:

Enabled

#6

Physical Measurements

Barometric pressure:

10.13 hPa

Sample flow:

500 cc/min.

Case temperature:

45°C

Detector temperature:

52°C

Pressure limits...

 

Temperature limits...

 

Displayed Parameters

First line’s parameter:

Flow

Second line’s parameter:

Flow

Third line’s parameter:

Flow

Fourth line’s parameter:

Flow

May be displayed on the appropriate line of the single analyzer display screen.

Pressure Limits

Sample pressure upper limit: 15 kPa

Sample pressure lower limit: 10 kPa

Temperature Limits

Case upper limit:

60 C

Case lower limit:

20 C

Detector upper limit:

69 C

Detector lower limit:

55 C

Analyzer Parameter List

Calibration Parameters

Calibration averaging time:

5 Secs

Calibration failure alarm:

 

Yes

Cal failure error allowed:

 

5%

Calibration time out:

 

60 Secs

Ranges zeroed:

TOGETHER

Calibrate ranges:

 

SEPARATE

Calibration adjustment limits: ENABLED

Analyzer Parameter List

Calibration Gases

 

Zero gas - range 1:

0 ppm

Zero gas - range 2:

0 ppm

Zero gas - range 3:

0 ppm

Zero gas - range 4:

0 ppm

Span gas - range 1:

9.3 ppm

Span gas - range 2:

19.3 ppm

Span gas - range 3:

101.1 ppm

Span gas - range 4:

247.1 ppm

Figure 3-11. Display Screens (3 of 5)

Rosemount Analytical Inc. A Division of Emerson Process Management

Maintenance and Service 3-11