Mid-Continent Chronos Digital Clock / High Power Single USB-A Charger 15W/3A Out 6420093-3

Part Number: 10-07294

Overview

The CH93 series, part numbers 6420093-( ), is a multi-function digital clock / chronometer / voltmeter / temperature unit with multiple options for USB Charging Ports. The unit fits into a standard, rear-mounted, 2-1/4" avionics panel cutout. Power is drawn from the aircraft main bus to light a white, six digit, seven segment LED clock. The clock can display several different modes: local time, universal time, flight timers, elapsed and countdown timers and optionally, bus voltage and up to two temperature inputs. The CH93 display is daylight readable with two methods of brightness control. It can be controlled automatically using the internal photocell or manually with an external dimming bus voltage. The CH93 clock has an internal battery to maintain clock time and flight timer memory when the aircraft is not in use.

The USB Charging Ports are designed as DCPs (Dedicated Charging Ports) to industry-standard protocol per the USB Battery Charging 1.2 Compliance Plan. Some models also comply with the higher power requirements of USB Power Delivery 2.0 and 3.0. Early-generation or smaller consumer electronics typically accept one (1.0) amp during charging. However, newer electronics, such as tablets and larger devices can accept, and in some cases, require up to 3 amps to charge and operate.

Features

• Six-digit, seven-segment LED clock
• 8 Modes: Local Time, UTC / Zulu Time, Flight Timer, Countdown Timer, Stopwatch, Volts, OAT and Secondary Air Temp (probes not included)
• Clock settings include 12- or 24-hour mode and seconds On or Off
• External lighting control and built-in photocell for automatic dimming
• Internal, field-replaceable battery maintains Time and Flight Timer memory, without aircraft power
• Compact, 2-inch size fits standard panel cutout
• Up to 75 watts total USB power
• Compatible with Apple, Android and other USB devices
• Protects itself and the charging device from short circuit, power surges and over-current potential
• Designed and built in Wichita, Kansas, USA
• 2-year limited warranty

Specifications

• Power Input: 22-32 VDC; 84 W maximum, 3.0A @ 28 VDC
• USB Power Output: 5-20 VDC (variable); 75 W, 6.0A
• Clock Accuracy: +/-0.5 seconds in 24 hours, +/-3 minutes per year
• Weight: 5.0 oz (0.3 lbs)
• Operating Temp: -40C to 70C (-40F to 158F)
• Altitude: 55,000 feet
• Mounting: Rear-panel mounted, (4) #6 screws
• Dimensions: 2.39 x 2.39 x 1.22 inches
• Connector Kit: MCIA P/N 8017287
• USB Interface: Dual USB-A/USB-C PD
• Case: Anodized aluminum black
• Certification: FAA TSO C71, EASA ETSO C71, RTCA DO-160G qualified

Documents

• Installation Manual and Operating Instructions
• Drawing Specifications
• MD93-01 Service Bulletin