Xylem Lab 870 - Manual (Page 21)

Lab 870 Operation
21 ba75555e04 11/2009
4 Operation
4.1 Switching on the meter
Note
The meter has an energy saving feature to avoid unnecessary battery
depletion during battery operation.
The energy saving feature switches off the meter if no key was pressed
during the specified interval (setting the switch-off interval, see
page 42).
The energy saving feature is not active:
z if the meter is supplied via the power pack or the USB interface
z if a PC is connected (with communication cable to RS232 interface)
z if the printer cable is connected (for external printers).
1 Place the meter on a flat surface and protect it from intense
light and heat.
2 Press the key.
A display test is briefly displayed.
Subsequently, the meter switches to the measuring mode
(measured value display).