Calibration Verification; Reconfiguration Of Temperature Compensation - Siemens LDS 6 Operating Instructions Manual

6.4

Calibration verification

A calibration check of LDS 6 analyzer can be done using a reference cell arrangement (optional)
containing a mixture of the measurement gas and nitrogen. The unit should be used in
conjunction with the 2 meter hybrid cable that is delivered with each calibration verification kit.
This calibration check is described in a specific instruction.
Note
Handlig of the hybrid cable
Unless the protective tube is removed from the fibre for the first time, the condition of the fibre
ends need to be checked with a fibre microscope and in case be cleaned with adequate solvants
like iso-propanol and a soft cloth to assure the optical quality and the optimal performance of the
system.
6.5

Reconfiguration of temperature compensation

Manual to External
1. Starting from "Measuring Window", navigate to the component or channel for which you
want to change the compensation mode. Press the soft key for "Configuration". Enter the
password for privilege level 2 (the password is factory-set to the value "222", but may have
been replaced by a new one). Press "Continue" twice and then select function 83
"Temperature Correction".
2. Press the first soft key to change the text "Manual" to "External Analog In".
3. Set the measuring range to the temperatures that correspond to the analog input signal 4 mA
and 20 mA respectively.
4. Set the limits to suitable values. If the temperature signal exceeds the limits a fault will be
triggered. Note that the limits cannot be set outside a certain range.
5. Press MEAS to return to measurement screen. Press MEAS again to loose privileges.
6. Hardware connections: Connect the 4-20 mA wires to pins 3 and 11 on the 15 pin trapezoidal
plug (D-SUB plug) at the rear. The conductor cross-section should be >0.5 mm
7. The procedure has to be repeated for other channels. It is not necessary to repeat it for more
than one component per channel since it is a channel specific function.
External to Manual
1. Starting from "Measuring Window", navigate to the component or channel for which you
want to change the compensation mode. Press the soft key for "Configuration". Enter the
password for privilege level 2 (the password is factory-set to the value "222", but may have
been replaced by a new one). Press "Continue" twice and then select function 83
"Temperature Correction".
2. Press the first soft key to change the text "External Analog In" to "Manual".
3. Set the manual value to the preferred value.
LDS 6
Operating Instructions, 01/2022, A5E00295894-10
6.5 Reconfiguration of temperature compensation
Maintenance and service
(20 AWG).
2
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