22(10–20 seconds depending on the position of DIP switches 1 and 2). The green lightshould start flashing when you tap the mattress. See also chapter 15 Setting sensitivity tonotice tonic-clonic seizure.18. TroubleshootingEnsure that the device is properly installed. Test the device carefully every time its settingsare adjusted.The device triggers a notificationbut the nurse call system does not.Ensure that the external wireless transmitter or othersystem’s connection cable is connected to the X2connector.Check the battery of the external wireless transmitter.Notification sound is inaudible Check the volume.The device triggers a notificationeven if there is no unusualmovement.Check the condition, installation and position of thebed sensor.Check that the sensitivity setting of the sensor is nottoo high. The green light should not be on if no one ison the bed.The device may interpret normal movements(scratching, rocking, etc.) as a seizure. Adjust thedelay time longer if necessary. Some people arerestless before they fall asleep, and this might causefalse notifications. Try switching the device on onlyafter the person has fallen asleep.If the bed exit alarm is enabled (DIP switch 3 in DOWNposition) and sensitivity is not set high enough, alarmmay trigger. Either disable alarm (DIP switch 3 in UPposition) or see section 15.The green light is on even if noone is on the bed.Ensure that the bed sensor and its cables are notaffected by external movement and remove anydistractions.Check the condition of the bed sensor and its cables.Faulty sensor or cable may cause distractions so thatthe green light is on all the time.Adjust sensitivity.The device does not trigger anotification, and the green light ison even if no one is on the bed.Check the condition of the bed sensor and its cables.Faulty sensor or cable may cause distractions so thatthe green light is on all the time. This means that thedevice cannot necessarily detect a seizure due toconstant distraction.The device does not trigger anotification, and the green light isnot on even if someone is on thebed.Check the condition of the bed sensor and its cables.Check the sensitivity of the device by having someonelie on the bed completely still. The green light shouldbe on.See also the “Troubleshooting Flow Chart” (picture 27).If you experience any problems with the use of the device, please contact themanufacturer.