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Takahashi EM-400 Temma II Equatorial Mount

SKU : TK-TTM63010

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  • This version of the Takahashi EM-400 Mount is no longer available. An updated version will be available in early 2022.

Product Details

  • The Takahashi EM-400 Temma II mount has been developed to fill the gap between the Tak NJP and EM-500 mount. It has been designed to carry an 85-pound load. The EM-400 disassembles into three sections: The R.A./Dec assembly, the base assembly, and the counterweight shaft. This reduces the heaviest part to 49-pounds (22.3 kg), which is lighter than the weight of the NJP equatorial head. This makes transportation and set-up easier.

    The entire mount rotates 360-degrees on its base for easier set-up, and allows the tripod to be set in the most secure position. All of the cables attach to the underside of the Declination housing and the use of internal encoders allows the mount to be used without having the cable wrap around in inconvenient positions. The 8 kg counterweights use two lock screws for more secure attachment to the counterweight shaft.

    The Takahashi EM400 Temma II Mount uses the highly accurate EM-200 computing reticle with an 11x eyepiece to allow three arc minute polar alignment to the celestial pole. This reticle is usable until the year 2040. The EM 400 is a dual-voltage mount that will operate on either 12 Volts (500x sidereal) or 24 Volts (500x sidereal). The Temma II system is compatible with The Sky and other popular software using the free ASCOM and Linux drivers. This mount can be used anywhere in the world with a latitude adjustment from 0 to 50-degrees in either hemisphere.


    Specifications For Takahashi EM-400 Temma II Mount

    • Type German Equatorial Mount
    • Right Ascension slow-motion Motor driven
    • Declination slow-motion Motor driven
    • Azimuth adjustment: 1-degree with rotary base plate
    • Elevation adjustment with ML altitude wedge: 0 to 47-degrees with HL altitude wedge: 15 to 58-degrees (default version for Europe)
    • Polar finder with accuracy built-in: 2 to 4.4-degrees
    • Encoders Included
    • Weight Main block: 22.5 kg
    • Altitude wedge: 5.2 kg
    • Total weight (with counterweight shaft): 29.5 kg
    • Counterweights: 2 x 8 kg
    • Maximal loading capacity: 35 kg (without counterweight)
    • Optimal loading capacity: 20 kg (without counterweight)
    • Operating Voltage: 12V / 24V DC to 12V DC only for high speed operation
    • Power consumption:
      • at 12V DC: 0.5/0.7A (NS, sidereal rate and tracking speed); 1.6A (HS, pointing speed)
      • at 24VDC: 0.4/0.9A (NS, sidereal rate and tracking speed); 1.4A (HS, pointing speed)
    • Standby mode: 0.1A
    • Tube mounting: Flat base with 4 x M10 et 2 x M8 screws
    • Mounting: Tube rings, plates, and dovetail mounting plates
    • R.A. axis diameter (material): 40 mm (steel)
    • R.A. worm gear shaft diameter (material): 20 mm (steel)
    • R.A. gear diameter (material): 150 mm/180 teeth (bronze)
    • DEC. axis diameter (material): 40 mm (steel)
    • DEC. worm gear shaft (material): 20 mm (steel)
    • DEC. gear diameter (material): 150 mm/180 teeth (bronze)
    • Type Temma-2
    • Stepper motor accuracy: 50 pps
    • Slow motion speeds:
      • R.A.: 0.1x to 1.9x sidereal rate
      • DEC.: 1.5 to 13.5-degrees (by increment of 1.5-degree/sec)
      • High speed mode 12V: 500x sidereal rate (R.A.),
      • 1-degree/sec (DEC.)
      • 24V: 500x sidereal rate (R.A.)
      • 2-degrees/sec (DEC.) 
    • Worm gear shaft cycle: 8 minutes
    • Tracking accuracy: about .5-degrees
    • Autoguiding SBIG compatible (mini-DIN PS2 connector)
    • PC connectivity RS-232C serial port (with S-VHS to DB-9 cable)
  • specifications

    Counterweights(2) 17.6 lb.
    Hand Controller includedYes
    Head DesignEquatorial
    Instrument Capacity77 lb
    Instrument Capacity85 lb
    Latitude Range 47 degrees
    Saddle WidthTakahashi
    Tracking ModesEQ North & EQ South
    Tracking RatesLunar & Sidereal & Solar
    Warranty5 Year Warranty
    Weight of Head64.9 lb
  • included items

    • This version of the Takahashi EM-400 Mount is no longer available. An updated version will be available in early 2022.

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