Model NGA 2000 TO2

Instruction Manual

760008-A September 2001

Signal value for 0% (100%) out- put

analog output may exhibit excessive noise.

TO2

37.50 ppm

-- Analog Output Setup --

 

Output number:

1

Choose signal source module…

 

Choose signal…

 

Signal value for 0% output:

0.00

Signal value for 100% output:

100.00

Output current:

0…20 mA

Hold output during calibration:

No

Signal name:

Sample flow

Current signal value:

8.60

Source module:

TO2

Measure

Back…

More…

It is possible to set the signal value for 0% output and for 100% output so as to out- put only a portion of the entire range.

Example:

Range from 0 to 1000 ppm

0% value to be 400 ppm, 100% value to be 700 ppm.

Analog output normally: 0V = 0 ppm, 10v = 1000 ppm

After changing the output scaling: 0V = 400 ppm, 10V = 700 ppm

Change to the “Signal value for 0% out- put:” line and adjust the value to 400. Then change to the “Signal value for 100% output:” line and adjust the value to 700.

NOTE:

If the measurement range is changed, the settings done in this menu will re- vert back to the standard values of the range. The output values can be changed permanently in the menu “Begin and End of Ranges.” See sec- tion 0.

NOTE:

Output current

TO2

37.50 ppm

-- Analog Output Setup --

 

Output number:

1

Choose signal source module…

 

Choose signal…

 

Signal value for 0% output:

0.00

Signal value for 100% output:

100.00

Output current:

0…20 mA

Hold output during calibration:

No

Signal name:

Sample flow

Current signal value:

8.60

Source module:

TO2

Measure

Back…

More…

Select the desired output range in the “Output current:” line. The options are 0…20 mA or 4…20 mA.

Hold output during calibration

TO2

37.50 ppm

-- Analog Output Setup --

 

Output number:

1

Choose signal source module…

 

Choose signal…

 

Signal value for 0% output:

0.00

Signal value for 100% output:

100.00

Output current:

0…20 mA

Hold output during calibration:

No

Signal name:

Sample flow

Current signal value:

8.60

Source module:

TO2

Measure

Back…

More…

Enable this option to hold the analog out- put to the last value during calibration.

Pressing the F5 (More…) key changes to the submenus “Output Signal if Assigned Module Fails” and “Fine Adjustment.”

The signal range of the analog output should not be less than the smallest range of the channel. Otherwise the

Rosemount Analytical Inc. A Division of Emerson Process Management

Operation 3-27

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Emerson NGA 2000 TO2 instruction manual Hold output during calibration, Signal value for 0% output