Maintenance; Preventive Maintenance; Batteries - Thermo Scientific RO-20 Operating Manual

4. Maintenance

4.1

Preventive Maintenance

Refer to while performing the procedures described in this chapter
Figure 4-1
Figure 4-1: Interior View, RO-20
4.1.1

Batteries

Replace the AA cells when Battery 1 check indicates near the left end of the meter's green
arc.
Replace the 12V alkaline batteries when Battery 2 check indicates the needle is left "4"in the
meter's green arc.
Ro-20 RB-XXX-XXXXXX E 4-1
Löw 08.10.2008