| Model |
SR74 |
SR75 |
| Measuring length (ML) |
70 – 2040 mm
70, 120, 170, 220, 270, 320, 370, 420, 470, 520, 620, 720, 770, 820, 920, 1020, 1140, 1240, 1340, 1440, 1540, 1640, 1740, 1840, 2040 |
| Thermal expansion coefficient (/°C) |
12 ± 1 x 10^-6 / °C |
| Output signal |
A/B Reference point line driver signal (compliant with EIA-422) |
Incremental serial bidirectional signal
(compliant with EIA-485 |
| Accuracy (at 20 °C) ML:mm |
3+3ML/1000 µm p-p or 5+5ML/1000 µm p-p |
| Resolution |
Selectable from 0.01, 0.05, 0.1, 0.5 and 1.0 µm (Set at factory shipping) |
| Reference point |
None, Center point, Multipoint (40 mm pitch),
Reference mark (standard pitch: 20 mm).
User selected point (1 mm pitch) |
None, Center point,
User selected point (1 mm pitch) |
| Power supply voltage |
DC 4.75 – 5.25 V (At cable connection end) |
| Consumption current |
200 mA (at 120 Ω terminal) max. |
| Imrush current |
2A max. (When the power supply rise time is 10ms) |
| Maximum response speed |
50 m/min (Resolution: 0.01 µm,
Minimum phase difference: at 50ns)
|
200 m/min (User-selected resolution setting) |
| Vibration resistance |
150 m/s² (50Hz~3kHz) |
| Impact resistance |
350 m/s² (11ms) |
| Protective design grade |
IP54 (Air purge not included), IP65 (Air purge included) |
| Other protections |
Oil lubricant can also be used under severe enviromental conditions |
| Power supply protection |
In the case of errors such as reverse connected power supply or over voltage, the internal fuse is cut to protect the power being supplied and wiring |
| Safety standards |
FCC Part 15 Subpart B Class A. ICES-003 Class A Digital Device.
EN55011 Gp1 Class A, EN61000-6-2. Safety standards not applicable (60 V DC or less) |
| Operating temperature range (°C) |
0 ~ +50 °C |
| Storage temperature range (°C) |
-20 ~ +55 °C |
| Mass |
Approx. 0.27kg + 1.36kg/m |
| Slider sliding resistance |
1N or less |
