Metrohm 849 Level Control - Manual (Page 22)

4.2 Maintenance ￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
14 ￭￭￭￭￭￭￭￭ 849 Level Control
Sensor Binary pattern Function Canister
Full level 1 "active" ***1**** Overflow warning at sensor 1 full
***1*1** Overflow warning at sensor 1 full
Full level 2 ok **0***** Overflow monitoring 2: every-
thing ok
Full level 2 "active" **1***** Overflow warning at sensor 2 full
**1**1** Overflow warning at sensor 2 full
Empty level 1 ok *0****** Empty level monitoring 1: every-
thing ok
Empty level 1 "active" *1****** Empty level warning at sensor 1 empty
*1***1** Empty level warning at sensor 1 empty
Empty level 2 ok 0******* Empty level monitoring 2: every-
thing ok
Empty level 2 "active" 1******* Empty level warning at sensor 2 empty
1****1** Empty level warning at sensor 2 empty
4.2 Maintenance
The 849 Level Control is maintenance-free to a large extent.
If one of the stainless steel sensors exhibits traces of corrosion, then the
sensor rod can be rubbed clean with a cloth and a conventional cleaning
agent.