Xylem Lab 850, starting from serial number 09470315 - Manual (Page 17)

Lab 850 Operation
17 ba75890e01 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 43).
The energy saving feature is not active:
z if the meter is supplied via the power pack
z if the automatic storing function is active (see page 33)
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 <On/Off> key.
A display test is briefly displayed.
Subsequently, the meter switches to the measuring mode
(measured value display).