Specifications

Chapter 2 Getting Started the BHT and System Mode

• Avoid dropping the battery cartridge or letting it undergo any

shock or impact.

Doing so could cause the batteries to break, generate heat,

rupture or burn.

• Never charge the battery cartridge where any inflammable

gases may be emitted; doing so could cause fire.

• Do not use batteries or power sources other than the specified

ones; doing so could generate heat or cause malfunction.

• The BHT has an integrated rechargeable backup power source which backs up the memory and

calendar clock in the BHT when no battery cartridge is loaded or the voltage level of the battery

cartridge drops below the specified level. The backup power source is automatically charged by the

battery cartridge.

When you first load the battery cartridge after purchase or you load it after leaving the BHT unuse

for a long time, do not remove the battery cartridge for 10 minutes or more after that loading. This is

for charging the memory backup source integrated in the BHT.

• If you leave the BHT without a battery cartridge loaded for a long time, the memory contents will

no longer be backed up so that the message "Contact your administrator.

ote the error number.

(XXXX)" or "Set the current date and time." may appear on the LCD.

• If you will not be using the BHT for a long time, follow the instructions given in Section 2.3.5,

"Battery Replacement Notes."

• Avoid storing the rechargeable battery cartridge in a hot place. The battery capacity may be

decreased.

• Do not touch the charge terminals of the battery cartridge or stain them. Doing so could result in

BHT failure or cartridge charging failure. It is recommended that you wipe those battery cartridge

terminals and the BHT's charge terminals with a dry, soft cloth periodically.

 Checking the Battery Voltage Level

Pressing the ENT key while holding down the SF key displays the current voltage level of the power

source (battery cartridge) as a bar indicator. (Releasing those keys erases the indication.)

For details, refer to Section 2.3.4, "Displaying the Battery Voltage Level and System Status."