Avtron MB801 Quick Start Manual - Page 2

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MB801 OPERATION

Normal Operation

The SELECT button selects what is to be displayed on

the four digit window and the CONTROL button controls

what is being displayed. Pressing SELECT sequentially

selects UT, Local Time, Elapsed Time and then back to

UT. The Control button starts and resets Elapsed Time

when momentarily pushed. Normal operation of the

MB801 cannot accidentally reset time.

Setting UT (Universal Time)

Select UT for display in the four digit window with the

SELECT button. Simultaneously press both the SELECT

and CONTROL buttons to enter the set mode. The tens

of hours digit will start flashing. The CONTROL button

has full control of the flashing digit and each button push

increments the digit. Once the tens of hours is set, the

SELECT button selects the next digit to be set. After the

last digit has been selected and set with the CONTROL

button, a final push of the SELECT button exists the

mode. The lighted annunciator will resume its normal

flashing, indicating the UT clock is running.

Setting LT (Local Time)

Select Local Time, LT, using the SELECT button.

Simultaneously push the SELECT and CONTROL

buttons to enter set mode. The tens of hours digit will

start flashing. The set operation is the same as for UT,

except that minutes are already synchronized with the UT

clock .

Specifications

• Universal Time: 24 hour format.

• Local Time: 12 hour format.

• Elapsed Time Count Up: Starts in

minutes, seconds, then hours, minutes up

to 99:59 hours.

• Elapsed Time Alarm: Activates at zero

when counting down.

1.100

3.030

4.350

.750

3.520

.100

Test Mode

In UT mode hold the SELECT button down for five

seconds and the display will indicate 88:88 and activate

all three annunciators.

Elapsed Time Count Up

Select ET for display. Pressing the CONTROL button will

start ET counting. Elapsed time counts up to 59 minutes,

59 seconds, and then switches to hours and minutes. It

continues counting up to 99 hours and 59 minutes.

Pressing the CONTROL button again resets ET to zero.

Elapsed Time Count Down

Select ET for display and enter set mode by pressing

both buttons. The countdown timer can now be set.

Entering the time is identical to UT time setting. When the

time is entered and the last digit is no longer flashing the

clock is ready to start the countdown. Momentarily

pressing the CONTROL button starts the countdown.

When the count reaches zero the display flashes and the

external alarm is activated. Pressing either SELECT or

CONTROL will deactivate the alarm. ET continues

counting up. Pressing CONTROL again will reset ET to

zero.

• Internal Lighting: 100 mA at 28V.

• NVIS Lighting: Option Green A.

• Keep Alive Current: .004 Amps, 28V.

• Voltage: 28V.

• Warranty: 1 year.

427 Hillcrest Way, Redwood City, CA 94062

Phone (866) 369-5588 • Fax (650) 369-9988

www.davtron.com

White/Int. Lighting 28V

YELLOW/Alarm

BLUE/ 10-33VDC Power

BLACK/Ground