User manual

Digital BUS-WATCH®

Radio Engineering Industries, Inc.

640333

Rev 0 -- 1/1/2006

Hard Drive Loading and Unloading

Inserting the Hard Drive: Turn the hard drive key to the unlocked and off

position. Gently insert the hard drive into the bay. Turn the hard drive key to the

locked and on position.

Removing the Hard Drive: Turn the hard drive key to the unlocked and on

position. Gently remove the hard drive from the bay.

Note: The Digital BUS-WATCH® IV will not function properly if the hard drive key is in

the unlocked or off positions. If there is no hard drive present in the bay but the key is in

the locked and on position, the Digital BUS-WATCH® IV will still power up normally, the

menus can be accessed, etc.; however, the unit will not be able to record any video and

the screen will read "DISK ERROR."

System Start-Up

To start the recording process, place the system switch in the ON position (this will

be done automatically if the system switch is connected to the ignition switch and

the ignition switch is in the ON position). Upon turning the system switch ON, the

Digital BUS-WATCH® IV will commence recording.

To stop the recording process, place the system switch in the OFF position. If the

OFF DELAY option is enabled, the Digital BUS-WATCH® IV will continue to

record for the prescribed number of minutes. When the off-delay expires, the

camera and Digital BUS-WATCH® IV shut off.

Automatic Hard Drive Heater

In order to prevent the possibility of hard-drive damage during cold periods, the

Digital BUS-WATCH® IV is equipped with a temperature sensor. The heater is

activated when the temperature is below 40° F and the Digital BUS-WATCH® IV

is turned on via system switch or timer. The red LED labeled HEATER on the front

panel indicates this. The colder the temperature, the longer the heater remains on,

with a maximum of ten minutes at the coldest temperatures. During this time all

Digital BUS-WATCH® IV functions are inhibited and the camera remains un-

powered. When the unit has completed its heating cycle, it will power up and

operate normally. As the temperature inside the unit drops during operation, the

heater will periodically come on to maintain a working operating temperature. The

unit can operate to temperatures below -80° F. A screen is displayed on the video

output jack on the front of the DVR displaying the temperature and the amount of

time left on the heater cycle, see figure 4. The DVR will use this time to attempt to

acquire GPS satellite signals if the GPS antenna is present in the system. A letter

‘H’ is present in the lower left hand corner of the screens whenever the hard drive

heater is on, unless that option is unselected in the Display Options Menu.