Hach-Lange H170 User Manual - Manual (Page 8)

Figure 3 Battery installation
Probe and connection types
N O T I C E
Make sure that all the rubber plugs are fully installed before the handheld meter is put in water or the interior of
the 3.5 mm phono jack will fill with water. However, the interior of the handheld meter will stay sealed. If water
gets into the 3.5 mm phono jack, immediately invert the meter to let water come out of the phone jack, then let the
connector dry.
N O T I C E
Always set the power to off before a probe connection is changed or damage to the instrument can occur.
The meter can connect to two pH-sensing technologies: ISFET pH probes and glass electrodes.
When the meter is set to on, it automatically recognizes the type of probe attached. The meter only
uses one type of pH probe at a time.
Note: If a probe is not attached to the meter, the selected mode is inactive.
User interface and navigation
Keypad description
Figure 4 and Table 1 show the function of the keys for each meter.
8 English