11YY press and hold to activatesecondary function of a keyXX press and release to activateprimary function of a keyDual Function KeysPower keyProvides two functions:Press the key to turn the OPM5 on/off. The unit will turn off automatically five minutes•after the last key press.Press and hold the key to disable/enable the Auto Off feature.•Auto power down will occur after 5 minutes of inactivity.- to disable the Auto Off feature, press and hold the power key until “HELD P on”appears.- to enable the Auto Off feature, press and hold the power key until “HELD AOFF”appears.Arrow/File keyProvides several functions:Testing mode: press and hold to enter the File Manager - File mode screen.•File mode: press to increment the File number.•Fiber and Recall mode: press to increment the Fiber number.•Arrow/Fiber keyProvides several functions:Testing mode: press and hold to enter the File Manager - Fiber mode screen.•Fiber mode: press to decrement the Fiber number.•File and Recall mode: press to decrement the File number.•Wavelength/Backlight keyProvides two functions:Press and hold to toggle the Backlight on or off.•Press to cycle through the calibrated wavelengths• A .Note: When the OPM5 is receiving a wavelength ID’d light, it automatically switches tothe ID wavelengths. WAVE ID indicator B appears on the display.WAVE ID WAVE IDBBA AA-88.888888 nmμW-88.88 -88.888888 8888dB dBm dB dBmdB dBmnm nmμW μWSingle WAVE mode, orTri WAVE mode - second pageDual WAVE mode, orTri WAVE mode - first pagefilefiberOPM5 Models