Mettler Toledo M400 Especificaciones Pagina 112

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Transmitter M400 112
© 02 / 2010 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter M400
Printed in Switzerland 52 121 378
14.5 pH Error messages / Warning- and Alarm list
Warnings Description
Warning pH slope >102% Slope too big
Warning pH Slope < 90% Slope too small
Warning pH Zero > 7.5 pH Zero offset too big
Warning pH Zero < 6.5 pH Zero offset too small
Warning pHGls change < 0.3 Glass electrode resistance changed by more than factor 0.3
Warning pHGls change > 3 Glass electrode resistance changed by more than factor 3
Warning pHRef change < 0.3
Reference electrode resistance changed by more
than factor 0.3
Warning pHRef change > 3 Reference electrode resistance changed by more than factor 3
Alarms Description
Watchdog time-out* SW/System fault
Error pH Slope >103% Slope too big
Error pH Slope < 80% Slope too small
Error pH Zero > 8.0 pH Zero offset too big
Error pH Zero < 6.0 pH Zero offset too small
Error pH Ref Res >150 KΩ* Reference electrode resistance too big (break)
Error pH Ref Res < 2000 Ω* Reference electrode resistance too small (short)
Error pH Gls Res > 2000 MΩ* Glass electrode resistance too big (break)
Error pH Gls Res < 5 MΩ* Glass electrode resistance too small (short)
* According to the parameterization of the transmitter (see chapter 8.5.1 “Alarm”;
PATH: Menu/Configure/Alarm/Clean/Setup Alarm)
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