SpecialConditionsForSafeUse - Mettler Toledo InPro 7250-Serie Bedienungsanleitung

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InPro ® 7250Series 9
2.5.3. Special conditions for safe use
1. Themaximumpermissibleprocesstemperaturesare
inaccordancewiththetemperatureclassesshownin
thetablebelow:
Temperature class
T6 68°C
T5 80°C
T4 108°C
T3 130°C
2. TheInPro725X/*/*/*conductivitysensorsmayonly
be used in suitable process terminals of METTLER
TOLEDOorothermanufacturersinpotentiallyexplo-
siveatmospheres.
3. The capacitance and inductance of the connecting
 c ablemustbetakenintoaccountinthedesign.
4.Theindependentprocessterminalusedforinstalla -
tionoftheconductivitysensorsmustbeconnectedto
theequipotentialbondingsystemoftheinstallation.
5. Theindependentprocessterminalusedforinstalla-
tion of the conductivity sensors must be included
in the recurring pressure test of the installation if
necessary.
6. The minimum conductivity of the media for safe
 w orkinginpotentiallyexplosiveatmospheresmustbe
higherthan1nS/cm.
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Maximum permissible
process temperature