Supplied By www.heating spares.co Tel. 0161 620 6677KANE450 manual Page 7Backlight Press and hold to toggle the display's backlightNote: use of the backlight increase the current drain on the batteriesTasklight Comes on in conjunction with the display's backlight... see above.SwitchingPUMP on / offThe analyser normally operates with the pump on. Press PUMP quicklyto switch the pump off and on.When the pump is switched off, the analyser displays "PUMP OFF"approx every 30 seconds.NOTE: the pump will not switch off if the CO reading is above20ppm . This helps to protect the CO sensor from damage.NOTE: the pump cannot be switched off with the rotor set to-----------MENU.Zeroing thepressure sensorPress and hold the PUMP key until the top line display shows ZEROCAL.“Freezing” thedisplayPress and hold the HOLD / ENTER key until a second beep is heard tofreeze all readings. The display flashes and readings can be printed bypressing PRINT key. Press and hold the HOLD / ENTER key again untila second beep is heard to go back to “live” measurements.The HOLD function is inhibited when the display LEDs are flashingStoring a set ofreadingsPress and hold the HOLD/ENTER key for approx. 4 seconds.Note: this STORE function is inhibited if the display LEDs are flashingNote: this STORE function is inhibited in normal operation if the pump isswitched off.Changing thedisplay's activelinePress and release the HOLD/ENTER key until the illuminated LEDs pointat the display line that you wish to change. While the LEDs are flashingturn the rotary dial to display the parameter that you want. If the rotor isnot turned the active line will go back to its previous setting after approx.5 secs.