EI ASC-5A Altitude Alert/Clock
EI ASC-5A Altitude Alert/Clock
The ASC-5A is a fully functional, panel mounted aircraft clock. Choose between local time or Zulu Time, and between 12/24 formats.
Call/Request
Request a Quote
ASC-5A Overview
Clock
The ASC-5A is a fully functional, panel mounted aircraft clock. Choose between local time or Zulu Time, and between 12/24 formats. The Up Timers and Down Timers have programmable alarms that will alert you at custom intervals, which is perfect for checking waypoint status, remembering to switch tanks, or for any of the other tasks for which you need an intermittent reminder.
Non-Volatile Memory
With the ASC-5A installation, it is not necessary to keep the clock attached to battery power. Non-Volatile memory ensures the clock is always accurate, to the second, without having to keep the instrument constantly powered up.
Altitude
The ASC-5A is not only a world-class aviation clock, it is an altitude management system as well. The instrument displays both ATC Altitude (picked up in between the Encoder and Transponder), and Density Altitude. The Density Altitude is corrected for by barometric pressure (input by pilot) and an Outside Air Temperature probe, which comes standard with the ASC-5A. Pilots can program alarms that will alert when they’ve reached a programmed altitude. Then, a Deviation alarm will alert when the altitude deviates too far from the programmed Destination Altitude. These tools are perfect for reaching and maintaining ATC assigned altitudes, Minimum Decision Altitudes, or whatever cruise altitude you decide during a VFR flight.
IFR Capable
Because the clock is accurate to the second, the FAA considers the ASC-5A to meet the requirements for IFR flying.
Installation
The ASC-5A can be installed as a minor alteration, with a logbook entry. No certifications or field approvals are required!
ASC-5A Specifications
Dimensions
2.5″ x 2.5″ x 3.65″ Depth
Mount
2.25″ Bezel
Weight – Unit
11 Oz.
Weight – OAT Channel
1.6 Oz.
Environmental
Meets DO-160C
Power Requirements
7.5 to 35 Volts, 1/10 Amp
Display Modes
BAR
Displays Barometric Pressure setting.
ALT
Displays Encoder Altitude or Assigned Altitude, determined by the Display Configuration setting.
OAT
Displays Outside Air Temp in degrees Fahreneit (°F) or Degrees Celsius (°C).
TIMER
Displays the time on the Up or Down Timer. The Up Timer will automatically start when your aircraft reaches an elevation of 300 feet above the ground.
Accuracy
Altitude
+/- 50 feet plus the accuracy of your Altitude Encoder (typically +/- 125 feet).
OAT
+/- 2% in accordance with TSO-C43a.
Timer
+/- .005% plus +/- .5 second.
Clock
+/- 2 minutes/month
Resolution
BAR
.01 Inches of Mercury
OAT
1°F or 1°C (Programmable)
Timer
1 second resolution (switches to 1 minute resolution for readings over 59 minutes and seconds).
Clock
1 minute.
Maximum Displayed Range or Setting
BAR Setting
28.00 to 29.00 Inches of Mercury, or 900 to 1199 millibars
Altitude(Displayed)
-1000 to 30,500 feet.
Assigned Altitude (Setting)
0 to 99,000 feet.
Approach Altitude (Setting)
0 to 99,000 feet.
OAT (Displayed)
-99°F to 1999°F (-87°C to 999°C).
TIMER (Displayed)
00:00 to 17 hours, 59 Minutes.
Recurring Alarm/Start Time (Setting)
-00:00 to 99 Minutes, 59 Seconds.