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iOptron HEM27A Harmonic Drive Mount with iPolar
Product information
iOptron HEM27A Hybrid Harmonic Drive Equatorial Mount
Freedom from cumbersome counterweights and shafts is here!
HEM27A includes the iPolar electronic polar alignment scope.
Introducing the HEM27A, iOptron's new revolutionary hybrid harmonic drive mount. These light weight, high payload tiny titans will deliver an astronomy experience like never before. Imagine a mount head weighing in at 3.7kg (8lbs) with a payload capability of 13.5kg (29.8bs), without needing a cumbersome counterweight or shaft. Applying iOptron's proven experience in creating precision mounts, the HEM27 series brings this vision to reality.
Using state of the art harmonic drive technology for the RA movement in tandem with a light weight conventional DEC worm gear drive, the HEM27s delivers amazing weight to payload efficiency. The black anodised all metal CNC machined body is an appealing and rugged platform, that will perform at the highest level for many years to come.
Unique features such as an electronic friction break and power down memory allow the mount to safely stop and resume a GoTo slew or continue tracking even after an abrupt power loss (No need to realign and start from the beginning).
For those who want the absolute best tracking, the HEM27EC model features a high precision RA axis encoder that delivers incredible tracking accuracy.
What's in the box(es):
H272A: HEM27A Mount Head, 8409 Hand Controller, iPolar, Case, etc.
Optional: 8061 Carbon fibre tripod with 21" minimum and 36.8" maximum heights
Features:
Advanced harmonic drive technology
Mount weight only 8.15Ibs payload capacity 29.74ibs
Go2Nova® hand controller with —212,000 object database
CNC all metal machined body
Unique friction brake to safely stop movement during a planned or unplanned power interruption
360 second gear period
Cable management system, no hanging exterior cables to moving parts
Dual saddle (caters for both Vixen and Losmandy styles)
Built in zero position search and locator's
Permanent periodic error correction (PPEC) HEM27 standard model
Real time periodic error correction (RPEC) HEM27EC model
2 year warranty
Technical Specifications:
| Models | HEM27 / HEM27A / HEM27EC |
| Mount type | Hybrid Harmonic Equatorial Mount |
| Gearing | StrainWave 17 (RA) / worm gear (DEC) |
| RA Reduction ratio | 120 |
| Mount weight (w/o dovetail saddle) | 3.4 kg (7.49 lbs) |
| Mount weight (w dovetail saddle) | 3.7 kg (8.15 lbs) |
| Max payload (w/o CW) 200mm | 13.5 kg/29.74 lbs |
| Payload/weight ratio | 3.65 |
| Period | 360 sec |
| Material | All metal, CNC machined |
| Exterior Finish | Anodised black |
| Drive motor type | Stepper motor |
| Latitude Range | 15° - 65° |
| AZ adjustment range | ±5° |
| Power | DC12V-5A |
| Power comsumption | 0.5A (Tracking), 1A (GoTo) |
| Control system | GotoNova / Commander |
| Hand controller | Go2Nova® 8409 with ~212,000 object database |
| Communication | USB, WiFi |
| Autoguide port | ST4 |
| Dovetail saddle | Vixen & Losmandy |
| Cable Management | No floating cables |
| Cable management | 2X 12V (up to 4A), 1X USB |
| Power-off brake | Electronic friction brake |
| Power-down memory | Yes |
| Periodic Error Correction | PPEC (Programmable) |
| Zero position search | Yes |
| Max goto speed | 6°/Sec |
| Internal iPolar | Only on Models: H272A HEM27A & H274A HEM27EC |
| High Precision encoder | Only on Model: H274A HEM27EC |
| Temperature range | Mount Head -20°C ~ 50°C (Hand controller -10°C ~ 50°C) |
| Warranty | 2 years |
Product Info
| GTIN | 0700646366903 |
| PREORDER | 1-4 weeks lead time |
| MPN | H272A |
| Make | iOptron |
| Brand | iOptron |
| Product Code | H272A |
|
Delivery Weight Package
|
10kg |