Diagnostic Mode 29Clock, Time, Battery, and TemperatureThis display shows the real time clock, the date, the battery voltage inraw count and temperature sensor reading.Sensor Expiration DateThe expiration date (month and year) for each installed sensor isbased on the manufacturing date and expected life of each sensor.If the current date exceeds the expiration date for any sensor, theperformance of the given sensor cannot be guaranteed. It is stronglyrecommended to replace the sensor immediately to ensure properoperation.Pump StallThe “Pump = 20/20” reading is the minimum and maximum pump rawcount (RC), and “Stall = 40 +/-” is the pump stall threshold. The pumpstalls if the maximum raw count reaches the pump stall threshold, whichcauses the pump to shut off. To determine the pump stall threshold:[ (max RC when pump is free + max RC when pump is blocked) ] ÷ 2To adjust the pump stall threshold, press [Y/+] to increase or [N/-] todecrease the numerical value.Back Light ThresholdAdjust the threshold for the LCD backlight to automatically turn on/off;verify the threshold is 100, which is suitable for most situations.Serial Number and PumpDisplays the monitor’s serial number and the pump status. If a pumpis installed and a pump speed control circuit is available, toggle thedisplay “Pump=Low/High” by pressing [N/-] . NOTE: Changes made areonly for testing the pump condition and are not saved to the nonvolatilememory. Refer to Change Pump Speed on page 25.Battery Duration TimeUse to test battery life and displays the last run time before the unitturned itself off due to low battery.Communicate with PCConnect monitor to a personal computer to upload a configuration fileor download stored data.N/-N/-Y/+