CJCD-2T is a quartz type high precision marine chronometer that is created by combining latest electronic manufacturing technology with traditional mechanical manufacturing process. It uses a quartz oscillator with high frequency and low temperature coefficient, combined with automatic temperature compensator for its frequency standard.
Its hands move via a step motor driven by CMOS integrated circuit to indicate the time.
Also known as Quartz Bulkhead Clock and Quartz Navigation Precise Chronometer
Key Features:
Applications:
Product Specifications:
| Quartz Oscillation Frequency | 4.194304 megacycle (mean solar time) |
| Integrated Circuit | CMOS (IC), Frequency division coefficient of 223 and pulse width of 46.875 milliseconds |
| Step Motor: | Eccentric step motor with output torque converted onto minute hand more than 80g.cm |
| Time Precision | Daily time error less than ±0.3s within temperature scope of 23°C±2°C; less than ±0.5s within 0°C~40°C; with normal operation within -10°C~50°C |
| Power Source | 1x D size battery – can be used for one year and above |
| Vibration and Shock Resistance – normal operation is ensured under such condition | 30 minutes of vibration at acceleration of 2g with 20HZ,50HZ,80HZ and shock at acceleration of 7g with impact frequency of 60-80 times/min |
| Overall Dimensions | 200mm x 155mm x 70mm |
| Weight | Approx. 2kg |
Operating Principle:
The high frequency quartz oscillator produces oscillating signal of 4.19404 megacycle, which receives frequency division and amplification by CMOS integrated circuit, and outputs impulse signal width of 46.875 milliseconds, and drives step motor. It will then pass through drive wheel system and hands for indication of time. Second hand travels skipping by second.
Address : 56 Kallang Pudding Road, HH@Kallang #09-07, Singapore 349328 | Email : sales@nauticalsupplies.com.sg | Tel : (65) 6848 4627
