R Spectrometer

Laboratory Quality USB Spectrometer




Wavelength range from 420nm to more than 670nm !!!!!

No longer spend hundreds of dollars to enjoy your hobbies! to get a real spectrometer ...

Please, look at the following table for the R Spectrometer caracteristics :

Optional Spectrometers for
Raman Spectrometry
 

Model 

Gem

Low-Cost

(R Spectrometer) 

Gem

Almad 

Isim

Optical Bench -  Symmetrical Czerny-Turner

focal length (mm)

75

75

ULS 75

HSC  100mm NA 0.13

Resolution (nm)

< 1

0.1 - 10

0.06 –20

0.2-7 nm

Sensitivity

counts/μW per ms integration time

310.000

310.000

470,000

445,000

Stray-light

>50

<0.2%

<0.04-0.1%

<0.5%

Detector

Sony CCD linear array

Sony CCD linear array

Sony CCD linear array

CCD linear array

pixels

2048 (Large)

2048 (Large)

2048 (Large)

 

Temperatrure Cooled CCD (Max)

Versus Ambient

-

-

ΔT=-35

ΔT=-35

Time to stabilize

-

-

4 minutes

4 minutes

Dark baseline improvement

@ΔT=-35°C  and it>5sec

-

-

> Factor 6

> Factor 6

PRNU improvement

@ΔT=-35°C  and it>5sec

-

-

> Factor 8

> Factor 8

Signal/Noise

350:1

350:1

300:

1200:1

AD converter

16-bit

16-bit

16-bit

16-bit

Integration time

50ms-1.1mn

1.05ms – 10 minutes

1.11 ms – 10 minutes

2 ms– 60 minutes

Interface

RS232

USB

USB 2.0

USB 2.0 high-speed

480 Mbps

USB 3.0 high-speed, 5 Gbps

Sample speed with on-board averaging

 

3.0 ms/scan

1.1 ms /scan

5.2 ms /scan

Data transfer speed

350 ms/scan

4.6 ms/scan

1.8 ms /scan

5.2 ms/scan

Dimensions (mm)

 

95 x 68 x 20

250 x 179 x 144

185 x 161 x 185

Weight (kg)

 

0.174

3.6

3.5

Power supply Default

5VDC

 

USB power,

250 mA,

external

5-15Vdc

100-240 VAC, 50

12VDC, 1.5A

Temperature range (°C)

0-55

0-55

0-55

0-55

 

Some characteristics may change with gratings of at which wavelengths they are used and the used slit. Please ask for more details.

Low-Cost Gem is only available for 432nm laser excitation

 

1- the spectrometer is sold incalibrated. Contact us for calibration instructions or we can calibrate it for you (a calibration file will be sent by email) for 15USD

2- you can order also an optical fiber for the spectrometer and a colimator (see our other products on sale)

3- When you buy the Spectrometer, you accept that the instrument may be shipped with a big delay. There is a shortage in manpower and supply. We struggle to satisfy all the demands. 

We proceed: First payed first delivred.


 

Model

Gem

Low-Cost

(Refurbished)

Gem

Almad

Isim

Optical Bench -  Symmetrical Czerny-Turner

focal length (mm)

75

75

ULS 75

HSC  100mm NA 0.13

Resolution (nm)

< 1

0.1 - 10

0.06 –20

0.2-7 nm

Sensitivity

counts/μW per ms integration time

310.000

310.000

470,000

445,000

Stray-light

>50

<0.2%

<0.04-0.1%

<0.5%

Detector

Sony CCD linear array

Sony CCD linear array

Sony CCD linear array

CCD linear array

pixels

2048 (Large)

2048 (Large)

2048 (Large)

 

Temperatrure Cooled CCD (Max)

Versus Ambient

-

-

ΔT=-35

ΔT=-35

Time to stabilize

-

-

4 minutes

4 minutes

Dark baseline improvement

@ΔT=-35°C  and it>5sec

-

-

> Factor 6

> Factor 6

PRNU improvement

@ΔT=-35°C  and it>5sec

-

-

> Factor 8

> Factor 8

Signal/Noise

350:1

350:1

300:

1200:1

AD converter

16-bit

16-bit

16-bit

16-bit

Integration time

50ms-1.1mn

1.05ms – 10 minutes

1.11 ms – 10 minutes

2 ms– 60 minutes

Interface

RS232

USB

USB 2.0

USB 2.0 high-speed

480 Mbps

USB 3.0 high-speed, 5 Gbps

Sample speed with on-board averaging

 

3.0 ms/scan

1.1 ms /scan

5.2 ms /scan

Data transfer speed

350 ms/scan

4.6 ms/scan

1.8 ms /scan

5.2 ms/scan

Dimensions (mm)

 

95 x 68 x 20

250 x 179 x 144

185 x 161 x 185

Weight (kg)

 

0.174

3.6

3.5

Power supply Default

5VDC

 

USB power,

250 mA,

external

5-15Vdc

100-240 VAC, 50

12VDC, 1.5A

Temperature range (°C)

0-55

0-55

0-55

0-55