General Tools and Instruments DPHC2001 - Manual (Page 23)

9. BATTERY REPLACEMENT
1) When the left corner of LCD display show " ", it
is necessary to replace the battery. However, in-spec.
measurement may still be made for several hours after
low battery indicator appears before the instrument
become inaccurate.
2) Slide the " Battery Cover " (3-14, Fig. 1) away from the
instrument and remove the battery.
3) Replace with 9V battery ( Alkaline or Heavy duty type )
and reinstate the cover.
4) Make sure the battery cover is secured after changing the
battery.
10. OPTIONAL PROBES & ACCESSORIES
DISSOLVED * YK-200PDO plug into the
OXYGEN YK-2001PH to become a
PROBE professional Dissolved Oxygen
Meter.
Model :
YK-200PDO Measurement Range
DO 0 to 20.0 mg/L
蚓
0 蚓 to 50 蚓
蚌
32蚌 to 122 蚌
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