The Astrotech LC-2 is a precision clock-timer offering reliability at an economical cost. This chronometer provides time, date and elapsed timer with a hold or time-out feature.
- Liquid Crystal Display for excellent sunlight readability
- Four-digit display
- Selectable 12 or 24-hour clock
- 24-hour elapsed timer
- Date display
- Internal lighting
- Three-button operation
- Rear mounts into standard 2-1/4" instrument panel cutout
- Includes backup Battery
Mode Selection The Mode button is pressed to select the desired operation, either Clock or Timer. In the Timer Mode, the annunciator will appear above the world Timer. In the Clock Mode, the annunciator will appear above the word Clock if in 12 hour mode. Note: the clock can be switched internally for either 12 or 24 hour operation. In the 24 hour mode, there is no clock annunciator.Timer Mode Press the Mode button to position the annunciator above the Timer. Labels below the left and right buttons describe timer functions. Press the RST button so that the time will read zero. To start the timer counting, press the ST/SP button one time.
Timer Operation The timer will initially count in minutes and seconds, and the colon will blink every second. After 59 minutes and 59 seconds, the timer will change to count in hours and minutes up to a maximum of 23 hours and 59 minutes. During the hours and minutes count, the colon will indicate counting activity by blinking every ten seconds. The timer counts may be stopped and held at a particular time by pressing the ST/PS button. To add to the existing count, press the ST/SP button again, and the timer will continue counting up from the previous total. To start a new count, press the RST button to zero the display. Press the ST/PS button to start a new count. During the hours and minutes count, the hold mode can be recognized by the lack of colon activity for a ten second duration. The colon may be continuously on or off in the hold mode.
Display Test This test should be done with the clock in the Timer Mode. Pressing both the SET and DT/AV buttons at the same time will result in a display test function. All display segments, colon, and annunciator will be activated. The clock will return to the timer mode. (If the display test is done in the Clock Mode, it will return in the set condition and have to be reset.)
Clock Mode Press the Mode button to position the annunciator above the world Clock. Words above the left and right buttons describe the buttons in the clock mode.
Date Setting Press the Set button one time. The month's digit will flash. Press the DT/AV button to advance the digit to the desired month. Press the SET button one time and the day's digit will flash. Press the DT/AV button to advance to the desired day. Press the SET button, and the date is now set.
Date Operation With the Clock Mode selected, momentarily pressing the DT/AV button will activate the date mode to the display. The Month: Date will be visible for 1.5 seconds. The display will then automatically return to the clock display. During the display of the date, the Clock annunciator will be blanked from the display. Note: If in the Clock Mode, the colon is not flashing every ten seconds, press and hold the ST/AV button until the time returns. This will activate proper colon operation.