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THOMMEN CM30 - 2" Chronometer

THOMMEN CM30 - 2" Chronometer

THOMMEN CM30 - 2" Chronometer

Product catalog summary
Overview
The THOMMEN CM30 is a Swiss-made precision chronometer designed for use in civil and military aircraft. It is built to meet the latest avionics standards and features a three-line display with light digits on a dark background. The chronometer supports various clock and timer functions and offers multiple day/night backlight options, including NVIS A and B compatibility. An internal power reserve ensures timekeeping even when aircraft power is removed.
General Features
  • 24-hour clock for UTC or Local Time (LT).
  • Maintenance Timer (MTH) accessible via serial interface.
  • Simultaneous display of clock, elapsed, and flight time readings.
  • UTC synchronization via GPS using SynxT adaptor.
  • Flight Timer (FT) with automatic or manual mode.
  • Elapsed Timer (ET) with split time function.
  • Remote control of Flight Timer and MTH via configurable switch input.
  • Remote setting functions via RS-232 in master and slave mode.
  • Installer accessible installation feature settings.
  • Customizable Lighting Dimming Curve for day and night mode.
  • Lighting options include white/white, white/red, white/green NVIS A&B.
  • Comprehensive Built-In Test with internal maintenance and failure log.
Performance Specifications
  • Time base accuracy: better than ± 0.2 s / 24 h.
  • MTBF: > 20,000 hours (MIL-HDBK-217).
  • Lighting options compatible with NVIS equipment: MIL-STD-3009 TYPE I CLASS B, RTCA/DO-275, or OST 1 00415-81.
Electrical Characteristics
  • Supply Power: Nominal 14 or 28 VDC < 300 mA @ 28 VDC.
  • Lighting Control Input Signal: 0-5 / 0-14 / 0-28 VDC < 5mA, 0-5 / 0-14 / 0-28 VAC @ 400Hz < 5mA, 5 / 14 / 28 VDC PWM < 5mA.
  • Lighting Mode Input Signal: 0 to Supply Power Voltage sinks < 5 mA against power return.
  • FT & MTH Run Signal: 0 to Supply Power Voltage sinks < 5 mA against power return.
Environmental Conditions
  • Temperature: -55° C to +85° C for ground survival and storage, -45° C to +70° C for continuous operation.
  • Altitude: 55,000 ft. for continuous operation and storage.
  • Humidity: < 99% relative humidity non-condensing for continuous operation and storage.
Mechanical Characteristics
  • Form Factor: 2” Semi ARINC housing, dimensions L 62.0 mm x W 60.3 mm x H 60.3 mm.
  • Weight: 210 grams (7.4 oz.).
  • Color: FED-STD-595 Housing black (37038) or grey (36118), markings white (37875).
  • Installation: Semi ARINC Housing installs using a metal mounting clamp, connector Amphenol 71-570123-12-10 mates with MS3116E12-10S.
Qualifications
  • RTCA/DO-160F: [B2Z]BBB[U2]EWFSFSY[ZI]AZ[ZC](ZN)[RR]M[A3H33]XXAC.
  • MIL-STD-810F: Method 514.5, Method 505.4 Procedure I.
  • RTCA/DO-178B: Software Level D.
  • RTCA/DO-254: DAL D.
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Catalog excerpts

THOMMEN CM30 - 2" Chronometer-1

DIGITAL CHRONOMETER GENERAL The THOMMEN CM30 is a Swiss Made precision, multifunctional chronometer designed to operate under the most stringent operating conditions in civil and military aircraft. The CM30 is designed according the latest civil and military avionics standards. It features a three line display with light digits on dark background (negative image). It supports the simultaneous indication of a combination of clock- and timer-function readings and has several day/night mode backlight options including NVIS A and B compatibility. The time base is supplied by a dedicated internal power reserve to provide the timekeeping function even when the aircraft power is removed. FEATURES 24 hour clock for UTC or Local Time (LT) Maintenance Timer (MTH) accessible via serial interface Simultaneous display of clock, elapsed and fl ight time readings UTC adapted to synchronization via GPS using SynxT adaptor Flight Timer (FT) with automatic or manual mode selectable Elapsed Timer (ET) with split time function Flight Timer (FT and MTH) remotely controlled by a configurable switch input Remote setting functions via serial link (RS-232) in master and slave mode Installer accessible installation feature settings Installer customizable Lighting Dimming Curve for day and night mode Lighting options (white/white, white/red, white/green NVIS A&B) Comprehensive Built In Test with internal maintenance and failure log THOMMEN AIRCRAFT EQUIPMENT AG Hofackerstrasse 48 | 4132 Muttenz | Switzerland Phone: +41 61 965 22 22 | Fax: +41 61 961 81 71 THOMMEN FOR THE AMERICAN AND CANADIAN MARKET Email: [email protected] Phone: +1 972 757 4791 [email protected] www.thommen.aer

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THOMMEN CM30 - 2" Chronometer-2

DIGITAL CHRONOMETERTYPE CM30 SWISSCHRONOPERFORMANCE SPECIFICATION TIME BASE ACCURACY: better than ± 0.2 s / 24 h LIGHTING OPTIONS FOR NVIS EQUIPMENT COMPATIBILITY: MIL-STD-3009 TYPE I CLASS B or RTCA/DO-275 or OST 1 SUPPLY POWER: Nominal 14 or 28 VDC < 300 mA 0 28 VDC LIGHTING CONTROL INPUT SIGNAL 0-5 / 0-14 / 0-28 VDC < 5mA (CENTRAL INSTRUMENT PANEL DIMMING LEVEL SIGNAL): 0-5 / 0-14 / 0-28 VAC 0 400Hz < 5mA 5 / 14 / 28 VDC PWM < 5mA LIGHTING MODE INPUT SIGNAL 0 to Supply Power Voltage sinks < 5 mA against power return (CENTRAL INSTRUMENT PANEL DIMMING MODE SIGNAL): FT & MTH...

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