M77781A
MS257
™ USB/RS232
MONOCHROMATOR AND SPECTROGRAPH
58
Gratings
Grating mounts:
Single or Quadruple
Grating Rotation:
Optical Center
Grating Size:
50 x 50 x 6 mm
Kinematic repeatability:
±0.05 nm
Quadruple turret grating change time:
1 second per grating
Grating selection repeatability
Wavelength:
±0.05 nm
Image vertical position:
±125 µm
Output Ports
Port selection repeatability:
±0.05 nm
(Motorized mirror)
Port changeover time:
5 seconds
Auxiliary Input Port (optional)
F number:
4.9
Port selection repeatability:
±0.05 nm
Dimensions:
7.5 x 6.5 x 6 inch (190 x 165 x 150 mm)
Slits
Fixed slits:
10 µm x 2 mm to 5 mm x 20 mm
Micrometer slits:
Variable from 4 µm to 3.0 mm x 15 mm
Precision: ±5 µm
Parallelism: ±2 µm
Accuracy: ±10 µm
Motorized slits:
Variable from 4 µm to 2.0 mm x 15 mm
Precision:
±5 µm
Parallelism:
±2 µm
Step Size:
2 µm
Accuracy:
±10 µm
Drive
Motor:
High torque micro-stepper
Drive:
Worm Gear
Step Size:
3.6 arc seconds
Precision:
±0.5 steps Drive
accuracy:
99.9999% rms
Max Speed:
10,000 steps/sec
Calibration
:
Interferometrically mapped drive
Individual grating calibration factors
System control
:
Hand controller 77709 (optional)
External computer with software
MS257 BASIC command language
(refer to manual M77781B)
External Interface
:
USB 2.0 (cable included)
RS232 (cable included)
GPIB (optional)
TTL (interface)
