Battery Replacement (fig. 3-14):
Remove bottom plate.
Disconnect leads from battery.
Install new battery and connect leads.
Install bottom plate.
Check calibration in accordance with para. 2-32c.
If reading cannot be adjusted after replacing battery, replace the TDS meter.
Figure 3-14. Total Dissolved Solids (TDS) Meter (Portable) Battery Replacement
REPLACE SWITCH INDICATOR LAMPS (refer to fig. 3-15)
Unscrew lens cap (1).
Twist bulb (2) to left and push in at the same time using lamp puller in Storage Box No. 2.
Be careful not to lose the cupped gasket washer. Without this gasket, you can break lens when
tightening, and dampness will fog lens.