The Model S471 is a high-quality handheld optical power meter, ideal for all your photometric, radiometric and fiberoptic measurement needs. The S471 is designed to be used in a laboratory setting or field environment. The Model S471 is microprocessor controlled and has three measurement data-presentation options: direct display measurement with analog bar; RS-232 computer interface and analog voltage input.
In addition to its exceptional technical and functional characteristics, this system is fully compatible with all UDT Instruments sensor heads in any configuration. All calibrations are traceable to the National Institute of Standards and Technology (NIST).
Wide dynamic range
High accuracy measurements
Programmable average readings in low-pass or boxcar average
Sample speeds up to 53 Hz(1)
Optional USB to serial bridge converter
Long battery lifetime or use external power
General Specifications | |
Electronic | 7 Gains, auto/manual selection |
Computer Interfaces | RS-232 or USB with use of serial bridge adaptor (not included) |
Sample Rates | > 2 Hz with display enabled Up to 53Hz with display disabled |
Analog Output Scale | ±1,2,or 4 VDC |
Communication Rate | 9600 Baud |
Operational Battery Life | 16 Hours with backlight off, 12 Hours with backlight on |
Operating Temperature | 10-60℃ |
Storage Temperature | - 20 to 35° C for up to 1 year |
External Power Source | 12 VDC at 3.3 A or 100-240 VAC 50/60 Hz with supplied power adaptor, 40 W max |
Internal Power Source | Rechargeable integral batteries -- 5 NiMH AA, 1800 mAHr batteries |
Calibration Capacity | 9 Continuous or 50 single-point |
Calibration Traceability | Traceable to NIST with optional ISO/IEC 17025 accredited |
Relative Humidity | Up to 99% (non-condensing) |
Regulatory Compliance | TUV, UL, CSA, CE |
Most Popular Sensor Options (purchased separately) | ||||||
Model | Material | Deault Cal Units | Dynamic Range | λ Range (nm) | Sensor Area | Notes |
221 | Si | W | 2.0 x 10-11 to 2.4 x 10-3 W | 350 to 1100 | 1 cm2 | |
247 | Si | W | 5.5 x 10-11 to 6.4 x 10-3 W | 350 to 1100 | 1 cm2 | Flat Response |
261 | Ge | W | 5.0 x 10-10 to 6.0 x 10-3 W | 800 to 1750 | ~ 0.2 cm2 | |
211 | Si | Lux and fc | 1.0 x 10-2 to 1.0 x 105 lux | 400 - 700 | 1 cm2 | |
265 | Si | Candela/m² and fL | 1.0 x 10-3 to 1.0 x 105 cd/m² | 400 to 700 | 0.34 cm2 | High accuracy Photometric filter (f’1 < 3%); 13° fixed field-of-view; standard light shield |
2153 | Si | Candela/m² and fL | 1.2 x 10-2 to 1.0 x 106 cd/m² | 400 to 700 | 1 cm2 | High accuracy Photometric filter (f’1 < 3%); 13° fixed field-of-view |
268UVA | Si - UV | W/cm2 @ 365nm | 5.0 x 10-10 to 9.0 x 10-4 W/cm2 | 320 to 400 | 1 cm2 | 365nm bandpass filter; opal glass diffuser |
268UVC | Si - UV | W/cm2 @ 254nm | 1.0 x 10-8 to 7.5 x 10-1 W/cm2 | 200 to 280 | 1 cm2 | 254nm bandpass filter w/ PTFE diffuser |
S2575 | Si | W | 3.0 x 10-8 to 9.5 x 10-1 W | 400 to 1100 | 0.34 cm2 | 260 sensor; 50 mm sphere and 5mm φ entrance aperture |
S2575GE | Ge | W | 3.0 x 10-9 to 1.6 W | 800 to 1750 | 0.34 cm2 | 261 sensor; 50 mm sphere and 5mm φ entrance aperture |
S2575R | Si | W | 6.0 x 10-8 to 1.8 W | 350 to 1100 | 0.34 cm2 | 260 sensor; flat filter, 50 mm sphere and 5mm φ entrance aperture |