Hach-Lange TSS PORTABLE Handheld Instrument for Turbidity_Suspended Solids Manual - Manual (Page 13)

Figure 4 Charging the rechargeable batteries
13
Installation
3.3 Connecting the probe
Remove the protective cap and connect the probe plug to the instrument ( Figure 5 ).
1 Charger 4 Charging socket
2 Discharge button (yellow) 5 LED lamp (green => rechargeable batteries fully charged)
3 Charging plug 6 LED lamp (red => rechargeable batteries currently charging)