Calibration - Siemens LDS 6 Operating Instructions Manual

4.3.3

Calibration

The LDS 6 is calibrated when delivered and does not normally require on site recalibration.
Please consult Siemens support if recalibration is needed.
CAUTION
Never use functions 20 and 21 without having contacted Siemens service staff first.
Inappropriate use of these functions may seriously affect the accuracy of the analyzer.
Access to the calibration functions requires access code 3.
20 Zero Calibration
20 Zero Calib. Ch1 NH
Zero Calibration Active
Calibrate
Act. Val. 0.12 mg/Nm
21 Span Calibration
21 Span Calib. Ch1 NH
Setpoint 293.0 mg/Nm
Act. Val. 288.1 mg/Nm
Calibrate
LDS 6
Operating Instructions, 01/2009, A5E00295894-05
You can use this function to calibrate the zero of a measuring range. When zero
calibration is triggered the current measurement value is stored. This value will
thereafter always be subtracted from the measurement signal.
3
Only start the calibration, when the measured value is stable.
The status of the calibration will be shown at the bottom of the screen.
3
You can use this function to calibrate the span setpoint of a measuring range. This
display lists the setpoint and the current value.
The calibration is triggered by pressing the third soft key. The current value is then set
3
3 to coincide with the set point.
3
Operation
4.3 Analyzer Functions
51