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- Page 1 Flight Manual Supplement CM30 Digital Chronometer FLIGHT MANUAL SUPPLEMENT CM30 DIGITAL CHRONOMETER ATA 31-22-21 Revision: 1.1 29/04/2022 THOMMEN AIRCRAFT EQUIPMENT AG Hofackerstrasse 48, CH-4132 Muttenz, Switzerland...
- Page 2 Flight Manual Supplement CM30 Digital Chronometer INTENTIONALLY BLANK 31-22-21 TITLE PAGE Revision: 1.1 Page 2 29/04/2022...
- Page 3 Flight Manual Supplement CM30 Digital Chronometer RECORD OF REVISIONS Rev. Date Reason for Revision Prepared Checked Approved MAR 20/2013 Initial Release T. Balazs R. Freimuth Document reformatted with updated logo and company address. Removal of MID number (S/N 2455). APR 29/2022 References to SynxT adapter and GPS deleted.
- Page 4 Flight Manual Supplement CM30 Digital Chronometer INTENTIONALLY BLANK 31-22-21 RECORD OF REVISIONS Revision: 1.1 Page 2 29/04/2022...
- Page 5 Flight Manual Supplement CM30 Digital Chronometer SERVICE BULLETIN LIST SB No. Subject Rev. Date 31-22-21 SERVICE BULLETIN LIST Revision: 1.1 Page 1 29/04/2022...
- Page 6 Flight Manual Supplement CM30 Digital Chronometer INTENTIONALLY BLANK 31-22-21 SERVICE BULLETIN LIST Revision: 1.1 Page 2 29/04/2022...
- Page 7 Flight Manual Supplement CM30 Digital Chronometer LIST OF EFFECTIVE PAGES SECTION PAGE REV. DATE SECTION PAGE REV. DATE Title Page 29/04/22 Introduction 29/04/22 29/04/22 29/04/22 29/04/22 29/04/22 Record of Revisions 29/04/22 29/04/22 Description and Operation 29/04/22 29/04/22 29/04/22 Service Bulletin List...
- Page 8 Flight Manual Supplement CM30 Digital Chronometer INTENTIONALLY BLANK 31-22-21 LIST OF EFFECTIVE PAGES Revision: Page 2 29/04/2022...
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Page 9: Table Of Contents
Flight Manual Supplement CM30 Digital Chronometer TABLE OF CONTENTS RECORD OF REVISIONS SERVICE BULLETIN LIST LIST OF EFFECTIVE PAGES TABLE OF CONTENTS INTRODUCTION 1. Proprietary Notice 2. Purpose of this Manual 3. Manual Description 4. Revisions 5. Warnings, Cautions and Notes... -
Page 10: Table Of Contents
Flight Manual Supplement CM30 Digital Chronometer INTENTIONALLY BLANK 31-22-21 TABLE OF CONTENTS Revision: 1.1 Page 2 29/04/2022... -
Page 11: Introduction
Neither this document nor the information disclosed herein or of a supplementary nature shall be reproduced or transferred to other documents or used or disclosed to others for manufacturing purposes, or for any other purposes, except as specifically authorized in writing by Thommen Aircraft Equipment AG (TAE). All rights are reserved. -
Page 12: Warnings, Cautions And Notes
The Document / Equipment Defect Report (on the next page) gives the customer and/or Approved Service Facility a way to inform Thommen Aircraft Equipment AG about any defects regarding the equipment or discrepancies in the technical documentation. This feedback will help Thommen Aircraft Equipment AG to make continued improvements to the equipment and/or the technical documentation. - Page 13 Flight Manual Supplement CM30 Digital Chronometer DOCUMENT / EQUIPMENT DEFECT REPORT Aircraft Type Serial No. Manual No. Operator Date Reported By Contact Details Document / Equipment: Description of Defect: Corrective action taken to continue operation: Please send to: THOMMEN AIRCRAFT EQUIPMENT AG...
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Page 14: List Of Abbreviations
Flight Manual Supplement CM30 Digital Chronometer List of Abbreviations Abbreviation Description Air Transport Association Battery CM30 Digital Chronometer, Type CM30 Component Maintenance Manual Defect Error Elapsed Time Flight Time Global Positioning System INSOP Installation and Operating Manual Liquid Crystal Display... -
Page 15: Description And Operation
It has the purpose to provide clock and timer capabilities in aviation cockpit applications. 1.2 Function Description The CM30 has a three-line negative image liquid crystal display (LCD). The top line shows the UTC or LT, the middle line shows the Elapsed Timer (ET) and the bottom line shows the Flight Timer (FT). -
Page 16: Limitations
CM30 Digital Chronometer 1.3 Limitations The CM30 is vibration tested in accordance with category U2 of section 8.0 of RTCA/DO- 160F, curves F and F1, without shock mounts. The CM30 can therefore be installed in a helicopter or a fixed wing aircraft. -
Page 17: Operation
CM30 Digital Chronometer Operation 2.1 General When electrical power is switched ON, the CM30 enters a Start-up Built-In Test (SBIT) routine. During this time, all display segments are turned on for about five seconds, as shown below. Figure 2 – During Five Second Start-up Built-In Test (SBIT) When the SBIT is finished, the screen changes to show the pre-set coordinates, as shown below. -
Page 18: Manually Setting The Universal Time Coordinated (Utc) Time
(8) Make sure that the UTC that you set is the same as the actual UTC (Greenwich Mean Time). (9) If a second CM30 Digital Chronometer is connected as a ‘slave’, make sure that it shows the same UTC. Figure 4 – Manually Setting the Universal Time Coordinated (UTC) Time... -
Page 19: Manually Setting The Local Time (Lt)
Flight Manual Supplement CM30 Digital Chronometer 2.3 Manually Setting the Local Time (LT) Do the following procedure to manually set the LT time. Refer to the figure below the procedure for item number references. (1) Make sure that the UTC is correctly set. -
Page 20: Setting The Elapsed Timer (Et)
Flight Manual Supplement CM30 Digital Chronometer 2.4 Setting the Elapsed Timer (ET) Do the following procedure to set the Elapsed Timer (ET). Refer to the figure below the procedure for item number references. (1) Push the ‘ET/+’ push-button (2) for three seconds and make sure that the ‘ET’ row (1) is set to ‘00:00:00’... -
Page 21: Manually Start/Stop The Flight Timer (Ft)
Flight Manual Supplement CM30 Digital Chronometer 2.5 Manually Start/Stop the Flight Timer (FT) Do the following procedure to manually start/stop the Flight Timer (FT). Refer to the figure below the procedure for item number references. NOTE: In AUTOMATIC mode the flight timer starts and stops automatically when a Weight-on-Wheels (WoW) signal is available. -
Page 22: Changing Between Manual And Automatic Flight Timer (Ft)
Flight Manual Supplement CM30 Digital Chronometer 2.6 Changing between Manual and Automatic Flight Timer (FT) Do the following procedure to change between manual and automatic Flight Timer (FT). Refer to the figure below the procedure for item number references. NOTE: The flight timer cannot be changed from ‘Manual’... -
Page 23: Changing Between Universal Time Coordinated (Utc) And Local Time (Lt)
Flight Manual Supplement CM30 Digital Chronometer 2.7 Changing between Universal Time Coordinated (UTC) and Local Time (LT) Do the following procedure to change between Universal Time Coordinated (UTC) and Local Time (LT). Refer to the figure below the procedure for item number references. - Page 24 Flight Manual Supplement CM30 Digital Chronometer INTENTIONALLY BLANK 31-22-21 DESCRIPTION AND OPERATION Revision: 1.1 Page 10 29/04/2022...
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Page 25: General
Table 101 – Warning Messages 1.2 Troubleshooting If an unexpected error occurs during the operation of the CM30, the clock will be stopped. The top and middle lines will statically display ‘--:--' and ‘--:--:--' respectively. The bottom line will display ‘ERR:<Code>’. - Page 26 Flight Manual Supplement CM30 Digital Chronometer INTENTIONALLY BLANK 31-22-21 FAULT ISOLATION Revision: 1.1 Page 102 29/04/2022...
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