PR-735

Overview

For situations when measuring the NIR is important the PR-735 comes into its own. It uses 512 detectors to sample the emitted spectrum from 380 to 1100 nm yielding a resolution of 1.348 nm/pixel. Data is reported in 2 nm increments.

Ease of navigation through menus, and vivid information screens including a full colour spectrum, is supplied by the high resolution colour touch screen display. Up to 8 measuring apertures can be supplied on the instrument providing unequaled spot size /sensitivity flexibility.

The capability to synchronize measurements (AutoSync®) to the frequency of the source (e.g. 70Hz display) means repeatable results.

An external trigger circuit lets you make precise measurements of flashing sources such as xenon strobes. The PR-730 can measure as low as 0.00015 cd/m². Accurate measurements of polarized sources like LCD's is guaranteed by the extremely low polarization characteristcs (<0.2%).

The PR-730 has an optional user variable bandwidth capability - select between 4, 10, 16 nm spectral bandwidths to ensure the optimum conditions for virtually any sample.

Features

Easy to Use

The high-resolution, full colour touch screen display provides both an easy means of negotiating through instrument setup menus and of viewing measured results, including a full-colour Spectral Power Distribution (SPD) graph of the measured sample

Connectivity

A wide selection of interfacing options, USB, RS232 and Bluetooth wireless, adds convenience and ease when communicating with and controlling the PR-735. With the Bluetooth option, the instrument will communicate up to 30m away from the base - ideal for situations where cabling is not possible.

Variable Spectral Bandwidth

The PR-735 introduces a new feature to the SpectraScan line - variable spectral bandwidth. One of 3 bandwidth settings (4, 10 or 16 nm) can be selected regardless of the measuring aperture being used. This lets the user change the bandwidth without changing apertures - or instruments.

Flexibility

The PR-735 provides unsurpassed flexibility with the world's largest selection of optical accessories. It is the only instrument in it's class that can measure radiance/luminance, irradiance/illuminance, radiant flux/lumens and radiant intensity/candelas simply by changing accessories.

Control

Remote Mode software makes it possible to control the PR-735 from a custom application as easy as sending and receiving text characters over any of the interfaces. SpectraWin is a full Windows based program that makes measurements, graphically dislays results and has powerful data manipulation capabilities.

An RGB Display Cal Module can be added to SpectraWin - it provides and interactive capability that helps automate the process of calibrating displays or digital projectors.


Manufactured by Photo Research

Specifications

Wavelength Range

380 nm - 1100 nm

Detectors

512 Cooled Detectors

Spectral Bandwidth

16 nm, optionally user switchable between 4, 10 and 16 nm

Wavelength Accuracy

± 2 nm

Spectral Resolution

2nm

Digital Resolution

16 bits

Available Measuring Apertures (Select up to 8 per instrument)

2°, 1°, 1/2°, 1/4°, 1/8°, 0.2°, 0.1°, 0.1° x 1° (Horizontal. Slit), 0.1° x 2° (Vertical Slit), 0.5° x 1.5° (Horizontal Slit)

Standard Lens

MS-75 - 75 mm telephoto

Minimum Measuring Diameter with Std. Lens and 1° aperture

5.31 mm

Luminance Sensitivity for Illuminant A†

0.00015 cd/m² with 2° aperture

Luminance accuracy†

±2% against NIST traceable Illuminant A standard at 0.005 cd/m² with 2° aperture

Luminance repeatability †

≤1%  at 0.005 cd/m² with 2° aperture against NIST traceable Luminance Standard at 2856K (Illuminant A)

Colour Accuracy †

±0.0015 for CIE 1931 x, y for Illuminant A (2856K) at 0.005 cd/m² with 2° aperture

Colour Repeatability †

0.0005 for CIE 1931 x, y for  Illuminant A (2856K) at 0.005 cd/m² with 2° aperture

Polarization Error

<0.2%

Stray Light Stray Light

<0.06%

Storage

Secure Digital (SD) Card

AutoSync Range

20 to 400 Hz

Interfaces

USB standard. Bluetooth or RS232 optional

Power Requirements

AC Adapter (90 - 240 VAC) or optional Rechargeable Li-ion battery

Battery Life

> 8 hours

Weight

6.46 kg

Dimensions

38.7 cm L x 21.0 cm W x 20.3 cm H

Operating Temperature

1° to 35° C

Humidity

0 - 90% non-condensing

Luminance values are with the 16 nm bandwidth

PR-735 Field Coverage (Spot Diameter) in mm

Accessory

Working Distance

2° Aperture

1° Aperture

0.5° Aperture

MS-75

355 mm
305 m

10.5 -
10640

5.25 -
5320

2.63 -
2660

SL-0.5X

91.4 mm
137 mm

3.0 –
5.08  

1.50 -
2.54

0.75 -
1.27

SL-1X

46 mm
66 mm

1.78 -
2.64

0.89 -
1.32

0.445 -
0.660

MS-2.5X

46 mm

1.02

0.51

0.225

MS-5X

28 mm

0.578

0.289

0.145

MS-7.5

100 mm
30.5 m

35.0 -
10600

17.5 -
5300

8.75 -
2660

LA-730

Contact

13.2

13.2

13.2

FP-730

Contact

3.17

3.17

3.17

Accessory

Working Distance

0.25° Aperture

0.2° Aperture

0.125° Aperture

0.1° Aperture

MS-75

355 mm
305 m

1.32 -
1330

1.05 -
1064

0.658 -
655

0.525-
532

SL-0.5X

91.4 mm
137 mm

0.375 -
0.635

0.30 -
0.508

0.188 -
0.318

0.150 -
0.254

SL-1X

46 mm
66 mm

0.226 -
0.330

0.178 -
0.264

0.111 -
0.165

0.089 -
0.132

MS-2.5X

46 mm

0.128 

0.102

0.064

0.051

MS-5X

28 mm

0.072

0.058

0.036

0.029

MS-7.5

100 mm
30.5 m

4.38 -
1330

3.50 -
1060

2.19 -
665

1.75 -
530

LA-730

Contact

13.2

13.2

13.2

13.2

FP-730

Contact

3.17

3.17

3.17

3.17

PR-735 Photometric Minimum Sensitivity (Cd/m²)

Accessory

2° Aperture

1° Aperture

0.5° Aperture

MS-75

0.00017

0.0007

0.0028

SL-0.5X

0.00017

0.0007

0.0028

SL-1X

0.00017

0.0007

0.0028

MS-2.5X

0.0005

0.0017

0.0069

MS-5X

0.0007

0.0028

0.011

MS-7.5

0.00017

0.0007

0.0028

LA-730

0.00017

0.0007

0.0028

FP-730

0.0005

0.0017

0.0069

CR-730

0.001 Lux

0.004 Lux 

0.016 Lux

Accessory

0.25° Aperture

0.2° Aperture

0.125° Aperture

0.1° Aperture

MS-75

0.011

0.017

0.044

0.07

SL-0.5X

0.011

0.017

0.044

0.07

SL-1X

0.011

0.017

0.044

0.07

MS-2.5X

0.028

0.045

0.110

0.17

MS-5X

0.045

0.0007

0.028

0.28

MS-7.5

0.011

0.017

0.044

0.07

LA-730

0.011 

0.017 

0.044

0.07

FP-730

0.028

0.045

0.110

0.17

CR-730

0.064 Lux

0.10 Lux

0.26 Lux

0.41 Lux

Sensitivity values are for 10:1 signal to noise measuring illuminant A (2856 Kelvin) with 16 nm bandwidth.
For 4 nm bandwidth, multiply values by 16.  For 10 nm bandwidth, multiply values by 2.56.