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Operation
4.3 Analyzer Functions
LDS 6
Operating Instructions, 01/2009, A5E00295894-05
61
Analog Test
The analog test can be used to parameter the analog output with a constant current of 0 - 24
mA for test purposes. The analog input permanently shows the input currents in mA.
81 Select Language
81 Select Language Ch1 NH
3
Español
Italiano
Français
Change requires restart
English
Deutsch
You can use this function to switch the analyzer to a different dialog language. The new
language will be effective in all screens only after having performed the following sequence:
1. Press the 'MEAS' key
2. Answer 'YES' in the following display
3. Restart the analyzer
82 Pressure Correction
Mode: Manual
82 Pressure Corr. Ch1 NH
3
1013 mbar
Manual Value:
700.0 - 1300 mbar
Limits:
[700.0]- 1300 mbar
Measuring Range:
Ana.Inp.2: 4-20mA(NAMUR)
You can use this function to select one of the following:
• Correction for pressure using an internal pressure sensor in the central unit;
• Correction for pressure using an external pressure sensor via analog input 2;
• Correction for pressure using a manual pressure value (example as shown on the adjacent
display).
The pressure values are entered as absolute pressure values. The selected measuring
range always corresponds to the analog input signal range of 4-20 mA. No other input
signals can be used. If the pressure sensor is configured according to the NAMUR standard,
the NAMUR mode should be selected for the analog input signal. In that case only input
signals within the range of 3.8 - 21.5 mA are accepted. If the NAMUR mode is not selected,
input signals within the range of 2 - 21 mA are accepted.
The limits normally mark the span in which pressure compensation is possible. If the
pressure signal exceeds the specified limits, this will be signalled as a maintenance request.
The parameters for the pressure correction in the corresponding factory function are
component-specific. Selection of the pressure mode in function 82 is channel-specific.
The pressure correction can be switched off.
83 Temperature Correction
Mode: Manual
83 Temp. Corr. Ch1 NH
3
300.0 °C
Manual Value:
0.00 - 1000 °C
Limits:
[0.00 ]- 400.0 °C
Measuring Range:
Ana.Inp.1: 4-20mA(NAMUR)
You can use this function to select one of the following:
• Correction for temperature using an external temperature sensor via analog
input 1 (example as shown on the adjacent display);
• Correction for temperature using a manual temperature value;
• Correction for temperature using the internally calculated process temperature.
This is only possible if the LDS 6 is set up to measure the temperature of the
measuring point.