12ERROR MESSAGESThe photometer will display an error message in the unlikely even of malfunction.These error messages are mainly designed to assist service staff in diagnosinginstrument faults. In the event of an error message appearing on the photometerdisplay, contact Palintest Technical Services Department for advice.Error messages are coded 7 and 9 and both relate to blanking the instrument.In the first instance, the user should check the operating technique and sampleclarity. If these are in order, then these errors indicate a fault in the optics :-Error 7 indicates too much light – remove the instrument from bright light anduse the light cap.Error 9 indicates not enough light – follow ‘Cleaning the Optics’ routine.GUARANTEEPalintest photometers are guaranteed for a period of two years from the dateof purchase, excluding accidental damage or damage caused by unauthorisedrepair or misuse. The guarantee specifically excludes damage caused bywater or by ingress of chemical solutions. Should repair be necessary, contactour Technical Services Department quoting the serial number shown on theback of the instrument. This guarantee does not affect your statutory rights.____________________________