iOptron HEM44 - Appendix A. Technical Specifications

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Appendix A. Technical Specifications
Mount
Hybrid Equatorial Mount (HEM)
RA gear system
StrainWave
DEC gear system
Backlash-free worm/belt system
RA reduction ratio
640:1
Payload w/o CW*
44 lbs (20kg)
Mount weight
13 lbs (5.9kg) w/o dovetail saddle
13.65 lbs (6.2kg) with dovetail saddle
Payload/Mount weight
3.23
Payload with CW
55 lbs (25kg)
Structure Material
All metal, Casting + CNC machined
Periodic
270 second
PEC
Permanent PEC/Real-time PEC
Drive motor
Stepper motor
Latitude adjustment range
15º ~ 65º
Azimuth adjustment range
± 6º
Polar Scope
iPolar
TM
electronic polar scope (for A version)
Level indicator
Level bubble
Hand Controller
Go2Nova
®
8409 with 212,000 objects database
Tracking
Automatic
Speed
1×,2×,8×,16×,64×,128×,256×,512×,MAX(4.5°/sec)
Power consumption
0.6A(Tracking), 1.2A(GOTO)
Power requirement
DC 12V, 5A (5.5/2.5mm DC plug)
AC adapter
100V ~ 240V (included, indoor use only)
Power off brake
Electronic friction brake
Power-down memory
Yes
Wi-Fi
Built-in
Communication port
Yes (USB and Wi-Fi)
Autoguide port
Yes (ST-4 compatible)
Firmware upgrade
Yes
Computer control
Yes
Dovetail saddle
Vixen/Losmandy convertible
Counterweight shaft
SS Φ20mmX200mm, M16 threaded (optional)
Counterweight
10 lb (4.5kg) (optional)
Tripod
Optional
Autoguider
Optional external iGuider
Operation temperature
-20ºC ~ 40ºC (hand controller -10ºC ~ 40ºC)
Warranty
Two year limited
* Payload calculated with payload center of gravity to the RA rotation axis is 200mm.