Xylem Lab 850, up to serial number 09470314 - Manual (Page 17)

Lab 850 Operation
17 ba75553e03 01/2006
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 32).
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).