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Safety Safety integration level acc. to IEC 61508 (SIL 2)
Liquiline is the first analysis transmitter to be developed to IEC 61508.
The development to SIL 2 reduces the probability of hidden errors and stands for the highest degree of
reliability.
Alarm LED
A bright, red LED draws your attention to an error (21.5 mA alarm).
Code protection
You can specify passwords linked to relevant access rights for various user groups:
• Specialist
• Maintenance
To guarantee the highest degree of safety and security in the pharmaceuticals sector, you can specify user roles
with IDs and passwords as per 21CFR11.
Reordering validated software
You can order new devices with older, validated software so you do not have to constantly validate new
software versions of new devices. This is possible as long as allowed by the hardware version.
Special features
pH / ORP Suitable sensors
Connection of all types of pH sensors:
• Analog and digital glass electrodes
• Analog and digital ISFET sensors
• Pfaudler electrodes
Sensor Condition Check (SCC)
This function monitors the state of the electrodes or the degree of electrode ageing. The "Electrode OK", "Low
wear" or "Replace electrode" messages inform you on the state of the electrode. The electrode state is updated
after each calibration. When the "Replace electrode" message appears, an additional error message is triggered.
Sensor Check System (SCS)
The sensor check system alerts to deviations of the pH glass impedance or reference impedance from the
normal range, thus indicating possible failure due to pH electrode blocking or damage.
In addition, the SCS detects glass breakage of glass electrodes and leakages of ISFET sensors.
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