CEM70 - Tripod iOptron - Free user manual and instructions
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| Product Type | Computerized GoTo German Equatorial Mount with Tripod |
| Mount Type | German Equatorial |
| Payload Capacity | 70 lbs (32 kg) |
| Mount Weight | 41 lbs (18.6 kg) without counterweights |
| Tripod Weight | Approximately 15 lbs (6.8 kg) |
| Power Supply | 12V DC, 5A (center positive) |
| GoTo System | 32-channel GPS, built-in WiFi, iOptron Commander and ASCOM support |
| Polar Alignment | Illuminated polar scope with reticle; optional iPolar electronic polar scope |
| Periodic Error Correction | PEC (Periodic Error Correction) with Real-Time PEC |
| Slew Speed | Up to 4.5° per second in GoTo; variable slow speeds |
| Tracking Modes | Sidereal, Solar, Lunar, King, and custom |
| Counterweight Shaft | Stainless steel, diameter 1.5 inches, length 14 inches |
| Dovetail Saddle | Losmandy D-style and Vixen compatible |
| Communication Ports | USB 2.0, ST4 autoguider port, hand controller port |
| Hand Controller | iOptron Go2Nova 8407 with LCD display |
| Autoguider Compatibility | ST4 protocol via dedicated port or ASCOM pulse guiding |
| Maintenance | Keep mount clean and dry; apply lithium grease to gears annually |
| Safety Warning | Do not exceed payload; ensure tripod legs are fully spread and locked; use surge protector for power |
| Included Accessories | Tripod, tripod spreader, hand controller, power supply, counterweight shaft, 1x 10 lb counterweight |
| Repairability | User-replaceable parts: hand controller, power board, motors; service centers available worldwide |
| Warranty | 2 years limited warranty for mount, 1 year for accessories |
Frequently Asked Questions - CEM70 iOptron
How do I balance the CEM70 mount?
First, balance the mount in RA by sliding the telescope and counterweights along the dovetail and shaft. Then balance in DEC by adjusting the telescope position on the saddle. Always loosen clutches before balancing.
What is the maximum payload for the CEM70?
The CEM70 can support up to 70 lbs (32 kg) including telescope, camera, and accessories. To ensure optimal tracking, it's recommended to stay below 60% of the max capacity for astrophotography.
How do I perform polar alignment?
Use the illuminated polar scope or optional iPolar electronic polar scope. For the polar scope, align the reticle pattern with the current polar date and time. For iPolar, follow the on-screen instructions in the Commander software.
How do I connect the mount to my computer?
Use the built-in WiFi for wireless connection or connect via USB cable to the USB 2.0 port on the mount. Install iOptron Commander or ASCOM drivers from the iOptron website.
What power supply do I need?
The mount requires 12V DC at 5A with a center positive 2.5mm barrel connector. A dedicated astronomy power tank or a regulated AC/DC adapter is recommended.
How do I update the firmware?
Download the latest firmware from iOptron's website. Connect the hand controller to your computer via USB, then run the iOptron Firmware Updater application. Follow the on-screen prompts.
Can I use the CEM70 with a tablet or smartphone?
Yes, via the built-in WiFi. Use the iOptron Commander app (iOS/Android) to control the mount, or connect via Wi-Fi to planetarium software like SkySafari.
What is the Periodic Error Correction (PEC) and how do I use it?
PEC reduces periodic tracking errors caused by the worm gear. To train it, guide the mount for one worm period (about 10 minutes) using an autoguider or hand controller. The mount stores and applies the correction.
How do I clean and maintain the mount?
Wipe the mount with a dry cloth after each session. For the gears, apply a thin film of lithium-based grease annually. Store in a dry place. Avoid using solvents on painted surfaces.
What do I do if the mount makes grinding noises or stalls?
First, check for overloading or imbalances. Then ensure the clutches are not too tight. If the problem persists, update the firmware or contact iOptron support. The motors have thermal overload protection.
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USER MANUAL CEM70 iOptron
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Product information
Brand : iOptron
Model : CEM70
Category : Tripod