MS-4400 XYZ Automated Stage
The MS-4400 XYZ provides a high resolution and highly repeatable means of controlling the X, Y, and Z position of the microscope stage. The MS-4400 XY stage has been specifically designed for larger upright microscopes like the Leica DMR-series, the Nikon Eclipse 80i, the Olympus BX series, and the Zeiss Axioplan, Axioskop 2, and Axio Imager. All axes derive their precise control through the use of closed-loop DC servomotors employing high-resolution rotary encoders for positioning feedback. By using closed-loop control of the stage position, there is no chance that the stage will become lost, as can occur with open-loop micro-stepped stages after a number of moves and direction changes. The MS-4400 XY stage utilizes crossed-roller slides, a high-precision lead screw, and zero-backlash miniature geared DC servomotors for smooth and accurate motion. The Z-axis drive also uses ASI’s proven line of closed-loop motor drives, each custom fitted to the microscope. The microprocessor-controlled MS-2000 control unit provides for RS 232 and USB communication with a host computer.
MS-4400 Features
- Closed-loop DC servo control of the X, Y, and Z-axes for precise positioning and highly repeatable focusing
- Wide dynamic speed range with XY joystick control
- Utilizes ASI’s proven Z-axis drives
- Z-axis clutch for easy switching between manual and motor-driven focus control
- Backlit LCD display shows X, Y, and Z coordinates
- “Zero” and “Home” button for simple stand-alone operations
- Compact ergonomic tabletop control unit size is 6″D x 9″W x 3″H
- Microprocessor control with RS-232 serial and USB communications
- Proven operation with many popular software packages
MS-4400 Lead Screw Options
| Lead Screw Pitch Options | Rotary Encoder Resolution | Maximum Speed |
| 25.40 mm (Ultra-coarse) | 88 nm | 28 mm/sec |
| 12.70 mm (Super-coarse) | 44 nm | 14 mm/sec |
| 6.35 mm (Standard) | 22 nm | 7 mm/sec |
| 1.59 mm (Fine) | 5.5 nm | 1.75 mm/sec |
| 0.635 mm (Extra-fine) | 2.2 nm | 0.7 mm/sec |
*Standard Lead Screw Accuracy is 0.25 ÎĽm per mm.
MS-4400Â Linear Encoder Options
| Axis | Resolution | Scale Accuracy |
| XY | 10 nm | ± 3 μm per length of scale |
| Z (12 mm and 15 mm stroke) | 50 nm | 0.025 ÎĽm per mm |
MS-4400 Options
- X, Y, and Z-axis Linear Encoders for high-accuracy positioning and focus control
- Stage Inserts to hold a variety of slides, dishes, sealed glass chambers, multiwell microplates, perfusers, heaters, and many other special items
- Auto-Focus for stages with ASI Z-axis drives (requires NTSC, PAL, or S-Video analog signal)
- Other lead screw pitches are available
MS-4400 Specifications for Standard Configuration
| XY axis range of travel | 100 mm x 100 mm |
| XY axis resolution (rotary encoder step) | 22 nm |
| XY axis RMS repeatability | < 700 nm |
| XY axis maximum velocity | 7 mm /sec |
| Z axis resolution (encoder step) | 50 nm |
| Z axis repeatability | ± 100 nm |
| Z axis maximum velocity | 0.6 mm/sec |
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