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| RU77 |
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Rotary scale technology utilizing magnetic detection method permits easy installation, superior durability, and excellent reliability.
- ystem accuracy: ±2.5sec
- Output wave number: 212= 4,096
- Output pulse number: 225= 33,554,432 p.p.r.
- Low profile shape: 42mm
- Vibration resistance: 150m/s2
- Impact resistance: 1000m/s2
- IP rating: IP65
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SL331 Specifications
| Model |
RU77 |
| Output signal |
Absolute serial (2/4 duplex: Compliant with EIA-422) |
| Detection system |
Magnetic system (MR sensor) |
| System accuracy (at 20 °C) |
±2.5" |
| Resolution |
Approx. 2.5°/1,000 - Approx 1°/10,000 (131,072 pulse/rotation - 33554,435 pulse/rotation) |
| Output wavelength |
40 µm(λ) |
| Output wave number |
4,096 waves/rotation |
| Number of divisions |
4,096 |
| Electircal allowable revolution |
2,000 min¹ |
| Mechanical allowable revolution |
3,000 min¹ |
| Operating temperature range |
0 ~ +60 °C |
| Storage temperature range |
-10 ~ + 60 °C |
| Vibration resistance |
150 m/s² (50Hz) ~ 2,000Hz) |
| Shock resistance |
1,000 m/s² (11ms) |
| Protective design grade |
IP65 |
| Power supply voltage |
DC 4.75 - 5.25 V (At cable connector end) |
| Current consumption |
200 mA (at 120 Ω terminal) or less |
| Imrush current |
2 A max. (When the power supply rising time is 10 ms) |
| Power supply protection |
In the case of errors as a 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 and EN55011 Gp1 Class A, EN61000-6-2. Safety standards not applicable (60 V DC or less) |
| Dimensions |
ø 100 x 42 mm |
| Cable length |
Standard 1m (maximum length of 15 m with extension cables) |
| Output connector |
Male, round waterproof connector NJB1DB 10PL2 by Japan Aviation Electronics Industry |
| Compliant connector |
Female, round waterproof connector NJB1HB 10SL2 by Japan Aviation Electronics Industry |
| Moment of inertia |
9.4 X 10^-5 kgm² |
| Starting torque (at 20 C) |
0.1 N.m or less |
| Mass |
Approx 1.3kg |
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