OLP-5, OLP-6, OLP-8 3-93.5 Powering the device on and offThe OLP has two power-on states:• Brief operating mode• Permanent operating modeWhen you power up the device, a self-test isexecuted, indicated by a brief flashing of alldisplay elements and display of the percentbattery capacity remaining. Afterwards, the mostrecent device settings are restored anddisplayed. Your OLP is now ready to go!Brief operating mode⇒ Press the “ON/OFF” key briefly.The OLP powers on.Fig. 3-6 The device is ready to operate as soon as ameasured value is displayed along with theother indicators.Power-off⇒ Press the “ON/OFF” key within 20 minutes ofpower-on.– or –The device automatically switches off 20 minutesafter it is powered on.