Chapter 4 Error Messages145Shutdown due to low battery ProblemWhen the BHT is switched on or being on (including during executionof a program), the battery output level has lowered so that the BHT nolonger operates.If lower battery is detected, the BHT beeps five times (for 0.1second per beep) and then turns itself off. Depending upon thebattery level, the beeper may not sound five times. SolutionReplace or recharge the battery cartridge. (For the chargingprocedure, refer to Chapter 5, Section 5.5.)Calendar clock stopped ProblemThe calendar clock integrated in the BHT has stopped because:- the battery cartridge had been removed for a long time, or- the rechargeable battery cartridge had not been recharged for along timeThe indication of 00/01/01 00:00 will change depending uponthe calendar clock state. SolutionSet the calendar clock (refer to Chapter 2, Section 2.3.2).
