Siemens LDS 6 Product Information

5
Adjusting the transmission
Proceed as follows:
1. Make sure that
– the sensors are properly aligned (sensor alignment procedure has been successfully completed) and that
– all connections between the central unit and sensors (optical and electrical cables) are properly established.
2. Connect a multimeter to pin 1 (GND) and 2 (Signal) on the sensor board (see figure 2 for the standard board and figure
3 for the ATEX/IECEx board).
3. Set the multimeter to AC voltage mode.
4. Use the screwdriver to adjust the potentiometer on the detector module (see figure 1) such that the multimeter readings
are within the range shown in the "Multimeter readings [mV RMS]" column of either table.
The maximum allowed value represents the saturation limit.
5. On the central unit start LDSComm and navigate to the appropriate channel menu ( Instrument Channels / Ch1 (2 or 3) /
Transmission tab ).
Make sure that the absolute transmission level is below 400.
Multimeter readings
The table below applies to all applications except "
O
2
" and "
O
2
/Temperature
" which are represented in table 2.
Table 1 Table 1: Common multimeter readings
Sensor board
Multimeter readings [mV RMS]
Maximum allowed [mV RMS]
Standard
300 ... 700
1200
ATEX/IECEx
150 ... 350
500
Table 2 Table 2: Multimeter readings "O
2
" and "O
2
/Temperature" applications
Sensor board
Multimeter readings [mV RMS]
Maximum allowed [mV RMS]
Standard
10 ... 200
800
ATEX/IECEx
5 ... 100
300
The values represented in the center column are usual values which might deviate in particular cases, but should never
exceed the values stated in the right column.
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ent
ent
of signal amplification
A5E34731436-02, 05/2019
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Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since varia
nce cannot
be precluded entirely, we cannot g
uarantee full consistency. However, the information in this publication is reviewed regularly and any
necessary corrections are included in subsequent editions.
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Siemens LDS 6 Specifications

General

Brand	Siemens
Model	LDS 6
Category	Measuring Instruments
Language	English