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90003749(1) [NGA-e (Software CLD 2.3/MLT 3.1.X)] 04/98
NGA 2000
5 - 33
♦ Example:
• Range from 0 to 1000 ppm
• 0% value shall be 400 ppm, 100% value shall be 700 ppm
• Analog output is normally: 0V = 0 ppm 10V = 1000 ppm
• After changing the output signal: 0V = 400 ppm 10V = 700 ppm
♦ Change to the line "Signal value for 0% output" or "Signal value for 100% output" with
the ↓↓ -key.
♦ Select the value with the ENTER key or the →→ -key.
♦ Select any digit with the ←← -key or the →→ -key and adjust a new value with the ↑↑ -key or
the ↓↓ -key. Confirm it with the ENTER key.
Note:
If you change the measurement range the adjustment done in this menu will disappear
and go back to the standard values of the range! To change the output signal values
permanently, you have to change the adjustments in the menu "Range Settings"!
(see 5.1.6 p. 5-16)
Attention:
The signal range at the analog output should not be less than the littlest measurement
range. Otherwise, it is possible that the noise level will be very high at the analog output!
5) Determination of the output current range:
♦ Select to the line "Output current range" with the ↓↓ -key.
♦ Press the ENTER key or the →→ -key to select the range and select the value you want
with the ↑↑ -key or the ↓↓ -key.
♦ Confirm the new adjustment with the ENTER key.
Options: 0...20 mA (and automatically 0...10V) or 4...20 mA (2...10V).
6) Analog output during calibration:
In the line "Hold output during calibration?" you can determine the signal drift of the analog
output and of the limits during calibration:
♦ Yes: During the whole calibration the analog output signal and the status of the limits
are fixed to the last value before calibration.
♦ No: The analog output signal and the status of the limits are following to the
measurement signal during the whole calibration procedure.
Note:
♦ The adjustments "Yes/No" are valid for all kinds of calibrations of a platform SIO or MLT
analyzer SIO: manual, time controlled, AK controlled and system calibration.
Sample Gas Zeroing Spanning Sample Gas
0V
Hold output during
calibration?
No
Hold output during
calibration?
Yes
xV