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90003482(2) [NGA-e (MLT-Software 3.2.X)] 07/98
NGA 2000
5 - 87
4) Determination of the output signal values:
• You can determine the signal value for the 0% output and the 100% output in the lines
"Signal value for 0% output" or "Signal value for 100% output". So you have the
possibility to zoom out a certain part of the whole range.
• 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 88 -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 the new value with the 88 -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 "Begin
and End of Ranges" (see 5.1.3 p. 5-27)!
• Attention:
The signal range at the analog output should not be less than the littlest range!
Otherwise, the noise level may be very high at the analog output!
5) Determination of the output current range:
• Press the 88 -key or the →→ -key in the line "Output current range" to select the range
and select the value you want with the ↑↑ -key or the ↓↓ -key.
• Confirm the new adjustment with the 88 -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.
• Notes:
„ 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.
„ The signal drift and status of limits of a local SIO in an MLT analyzer module will be
determined in the menu "Calibration Procedure Setup" in the line "Analog output
during calibration: ... Holding/Tracking" (see 5.1.1 p. 5-9/10).
5.2 I/O Module Controls
5.2.1 SIO Module – Analog output setup