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MD23-190 

 

User Guide 

Mid-Continent Instruments and Avionics 

User Guide UG190, Revision 2 

 

 

January , 2021 

Time Format 

The Time Format menu can set the Local Time to 12-HR or 24-HR mode. UTC time will 
always be shown in 24-HR model. This page will also identify which mode is currently active. 

 

 

 

 

 

Time Formal Menu 

 

Time Set 

The Time Set menu allows the user to set UTC time or Local Time. GPS time is shown if 
currently available.  

The UTC time can be set to a different time than the GPS time, even when GPS time is 
available. In this case, the time basis will continue to be synchronized, but the manual UTC 
time will be stored and remembered as an offset to the GPS time. The SYNC UTC function 
can be used to reset a manually modified UTC time back to GPS time (if GPS time is 
currently available).   

Seconds can only be set/reset to zero. UTC seconds cannot be set if a current GPS time is 
available; it will always be synchronized with GPS seconds. Local seconds cannot be set; it 
will always be synchronized with UTC seconds. 

 

 

 

 

 

Time Set Menu 

Time Set Menu 

 

(GPS time not available) 

(GPS time available) 

 

 

 

Summary of Contents for MidContinent MD23-190

Page 1: ...ent regulatory requirements are qualified to install this equipment It is a supplement to the MD23 Installation Manual and Operating Instructions p n 9019161 If further information is required please...

Page 2: ...set of data is referred to as a Custom Instrument Definition or a CID file The CID file for this instrument is pre loaded and may be available for future updates via a standard USB flash drive through...

Page 3: ...tement of work and are not provided within this User Guide Connector Pinout Pin Description Function 1 Ground Power return connect to a c ground 2 ARINC Out A ARINC label 150 3 ARINC Out B paired with...

Page 4: ...t MANUAL to start and stop the Flight Timer manually o select EXTERNAL to start the timer on an open signal Timer stops when grounded Hobbs Timer Pre Set to coincide with the existing aircraft engine...

Page 5: ...the unit is initially powered on the Middle Pane is blank LOWER PANE The Lower Pane shows the current active value of all four timer functions and allows any of them to be selected for an expanded vie...

Page 6: ...OP and RESET the timer manually by scrolling to and selecting the desired action If RESET is selected without first selecting STOP the timer will reset to zero and continue counting When the Flight Ti...

Page 7: ...mer running Count down Timer T When the Count down Timer is selected from the Lower Pane the Lower Pane and Middle Pane will show HH MM SS The user can SET START STOP and RESET the timer manually by s...

Page 8: ...ARINC input T Count up Stopwatch function with manual start stop reset T Count down Count down timer from user set value with manual start stop reset counts up after reaching zero 4 1 3 USER OPTIONS...

Page 9: ...set to a different time than the GPS time even when GPS time is available In this case the time basis will continue to be synchronized but the manual UTC time will be stored and remembered as an offs...

Page 10: ...ser to choose whether the seconds HH MM SS are shown ON or not shown OFF on the main display for both the time UTC and LOCAL and the Flight Timer This feature is to reduce clutter or distraction per u...

Page 11: ...Hobbs timer if enabled via external signal 5 1 CONFORMANCE For standard conformance items such as qualification levels and software updates please refer to the IM 5 1 1 INSTRUCTIONS FOR CONTINUED AIR...

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