EM-500 Temma-2 specifications
Main specifications
| Spec. | EM-500 Temma-2 |
|---|---|
| Type | German Equatorial Mount |
| R.A. slow-motion | Motor driven |
| DEC. slow-motion | Motor driven |
| Azimuth adjustments | ± 15° (rotary base plate supplied) |
| Elevation adjustments | 20° to 50° |
| Polar finder / Accuracy | Built-in / 2' |
| R.A. setting circles accuracy | 10" |
| DEC. setting circles accuracy | 2° |
| Encoders | Supplied |
| Weight | 45 kg |
| Counterweights | 2 x 10.5 kg |
| Maximum loading capacity | 45 kg (without counterweight) |
| Optimum loading capacity | 30 kg (without counterweight) |
| Operating voltage | 12V / 24V DC |
| Power consumption | @12VDC : 0.52A (NS, sidereal rate and tracking speeds) ; 1.4A (HS, pointing speed) @24VDC : 0.39A (NS, sidereal rate and tracking speeds) ; 1.55A (HS, pointing speed) |
| Tube mouting | With TMP0210 or TFK2210 plates, 2 x M8 screws (35mm) |
| Mounting capacities | Tube rings, plates and dovetail mounting plates |
| Option | Short and long stand piers |
EM-500 EQ mount schema
Mecanical specifications
| Spec. | EM-500 Temma-2 |
|---|---|
| R.A. axis diameter (material) | 50 mm (bronze) |
| R.A. worm gear shaft diameter (material) | 25 mm (iron) |
| R.A. gear diameter (material) | 149 mm/144 teeth (bronze) |
| DEC. axis diameter (material) | 50 mm (aluminium) |
| DEC. worm gear shaft diameter(material) | 25 mm (brass) |
| DEC. gear diameter (material) | 149 mm/144 teeth (bronze) |
Motor Drive Specifications
| Spec. | EM-500 Temma-2 |
|---|---|
| Type | Temma-2 |
| Stepper motor accuracy | 115 pps |
| Slow motion speeds | R.A. : 0.1x to 1.9x sidereal rate Dec. : ± 1.5' to; 13.5' (by increment of 1.5'/sec) |
| High speed mode | @12V. : 260x sidereal rate (R.A. and DEC.) @24V. : 520x sidereal rate (R.A. and DEC.) |
| Worm gear shaft cycle | 10 minutes |
| Tracking accuracy | ± 3.5" |
| Autoguiding | SBIG compatible (with mini-DIN PS2 connector) |
| PC connectivity | RS-232 serial port (with S-VHS to DB-9 cable, supplied) |