ISR300 Single Monochromator
Optical Layout
| Configuration | Symmetrical Czerny Turner |
| Focal length | 300mm |
| Grating mount | Triple grating turret |
| Number of gratings | 1-3 |
| Grating size | 68 x 84mm |
| Aperture ratio | f/4.1 (at all grating angles) |
| Number of entrance/ exit ports | 1/2 or 2/1 |
Opto-Mechanical
| Mechanical resolution drive | 0.00014°/ step |
| Slit type | Internal motorised variable |
| Slit width & height | 10µm-10mm (W) x 20 (H) |
| Filter size | 6-position filter wheel |
| Filter diameter | 25mm (see separate Order Sorting Filter datasheet for full range) |
Optical Performance (quoted for 1200 g/mm gratings)
| Spectral range | Within range 200nm-50µm |
| Linear dispersion | 2.7nm/mm |
| Wavelength accuracy | ± 0.2nm |
| Wavelength reproducibility | ± 0.05nm |
| Resolution full/reduced slit height | 0.3/0.1nm |
| Stray light rejection at 2.5 FWHM | 10-5 |
| Wavelength acquisition speed | 1000nm/s |
Electrical/ Mechanical
| Overall dimensions | 328L x 375W x 263H mm |
| Optical height | 178mm |
| Weight | Approx. 15kg |
| Power supply | Mains input 110/220V 50/60Hz |
Options
| Diffraction gratings | See Configurations Tab |
| Order sorting filters | See Configurations Tab |
| Filter wheel | 252-6 (6-position filter wheel, includes shutter) |
487 Dual-Channel Picoammeter Module - Electrical
| Channel 1 input | Current input to picoammeter |
| Channel 2 input | Current input to picoammeter |
| Gain ranges | 1010-105 V/A |
| Maximum current input | 100µA |
| Frequency response | DC to 30Hz |
| Gain accuracy | +1% |
| Gain stability | 200ppm/°C |
| Output stability | 5ppm/°C to 500ppm/°C depending on sensitivity |
| Linearity | < 0.025% departure from linearity from zero to full scale |
| ADC resolution | 4½ digit BCD (0 to 19999) i.e. > 14 bit resolution |
| ADC integration time | 100ms |
| Auxiliary input range | 0- 9.8V |
| Picoammeter input impedance | Virtual earth |
| Auxiliary input impedance | 1 MΩ |
