An extraordinary innovation in mount design...Now with a new payload! Recognizing the growing demand for an accurate and stable, equatorial mount with the versatility to carry larger instruments and more complex imaging arrays, we created the iOptron CEM120EC. It offers the benefits of our revolutionary “center balance” design: stability, accuracy, and smooth mechanical operation, while capable of carrying a payload up to 115 lbs (52 kg). The “center balance” design’s natural stability is due to its focusing the mount along with payloads weight directly over the center of the pier or tripod. Along with the stability aspect, the CEM120 features an advanced cable management system consisting of more ports in more locations preventing tangle ups and reducing the chance of fractured cables. They also add some new features to the CEM family like Wi-Fi and LAN for remote operation and easy to use, reliable clutches on both axes. The CEM120EC2 utilizes two high resolution encoders, one on each axis. The two encoders enable the mount to perform dual axes tracking. With advanced sky modeling the CEM120EC2 will be able to account and adjust for polar alignment error as well as changes in atmospheric (refractive) distortion. Fixed home sensors on each axis, allow the mount to save alignment models after power off too to be used on future nights. Specifications Mount Center-balanced Equatorial Mount (CEM) Payload1 52kg (115 lbs), exclude counterweight Mount weight 26kg (57 lbs) Payload/Mount weight ratio 2 Material All metal Latitude adjustment range2 0°~ 68° (0.5 arcmin division) Azimuth adjustment range ± 5° (3 arcmin division) PE (by encoder) 3 Worm period 240 sec PEC Real time PEC (RPEC) Right Ascension worm wheel Φ216mm, 360 teeth, zero backlash Declination worm wheel Φ216mm, 360 teeth, zero backlash Worm Φ26mm Right Ascension axle Φ80mm, steel Declination axle Φ80mm, steel Right Ascension bearings Φ125mm Declination bearings Φ125mm Counterweight shaft Φ38.1x 540 mm (SS, anti-slip, 4.5kg) Counterweight 10 kg (22 lbs) Mount base size 210 x 230 mm Motor drive Precision stepper motor w/128 micro-step Encoder Resolution 0.035 arc seconds Motor Resolution 0.07 arc seconds Slew speed 4°/sec (960x) max. Hand Controller Go2Nova® 8407 V2, 8 line 21 character LCD Power requirement4 DC 12V, 5A Power consumption 0.7A(Tracking), 1.8A(GOTO) Polar Scope Optional electronic polar scope Meridian treatment Stop (0-14° pass), auto flip Zero position Automatic zero search Park position Horizontal, vertical, current, alt/azi input Level indicator Yes Dovetail saddle Losmandy D, 17.2" (437mm) GPS Yes Guiding port ST-4 Communication port RS232, USB, LAN, WiFi Cable management 2xDC12V (1A), DC5V(1A), 2xDC (5A), ST4, 6P6C, 4xUSB2.0, USB3.0 (powered), USB for PS, AUX Operation temperature -10°C ~ +40°C Pier/Tripod Optional pier Warranty Two year limited OTA size and length dependent. If you latitude is
