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Technical Information
 

Features
  • Compatible with Silicon, Germanium, PMT, and Thermopile Detectors
  • Digital Autoranging Capability
  • Stores up to 100 Calibration Constants
  • IEE-488 Bus and RS-232C Serial Port
  • 32 Output Lines for Computer Control of System Peripherals
  • Free Standing Cabinet or Rack-Mounted Option

The SC-5500 Integrating Sphere System Control is a versatile, microprocessor-based radiometer designed to operate with Labsphere integrating sphere systems. The microprocessor design provides on-board intelligence and lays the foundation for a number of advanced capabilities that are accessible either directly from the front panel or remotely through computer interface. Both an IEEE-488 bus and a RS-232C serial port are provided for flexibility in computer connection. The SC-5500 accommodates silicon, germanium, PMT, and Thermopile detectors. The SC-5500 provides 32 digital output ports for computer control of additional components such as power supplies, light sources and detectors. Up to 100 calibration constants can be stored in units appropriate to the user's application.

Operating Features
Front Panel Display

Two rows of backlit LCD digital readouts show the calibration selected for a particular detector and the measurement in units unique to that calibration.

Cal Allows the user to select from up to 100 pre-programmed calibration coefficients.

Zero Allows the user to make relative measurements by storing the current reading in memory and automatically subtracting it from all subsequent readings.

Norm Allows the user to make normalized value readings by dividing all subsequent readings by the current reading.

Autorange Commands the instrument to automatically determine the optimum range for the detector. The operator can manually override this control and set the range desired.

Option Allows for selection of the detector, IEEE address, digital filter, the baud rate, parity and analog or digital display.

SPECIFICATIONS AND ORDERING INFORMATION

PART NUMBER

SC-5500

Range:

7 decades/Amps; 5 decades/Volts

Sensitivity:

0.1 pA; 1.0 V

Resolution:

4.5 digits

Reading Rate:

2 readings/sec

Detector Types:

Si, Ge, PMT

Operating Power:

110-120/220-240 VAC;

3.5A/1.8A

   

50/60 Hz

Operating Environment:

0 to 50 C,

  

0% to 70% relative humidity at 35 C

Linearity derates 3% relative

Computer Interface:

IEEE-488 bus; RS-232C serial port

Dimensions (inches):

16.7 W x 16 D x 5.2 H

Weight:

8 lbs (3.63 kg)

SYSTEM CALIBRATIONS

System calibrations are easily programmed into the SC-5500 for direct readout in units appropriate to the user's application. Calibrations are performed in the Labsphere Optical Calibration Laboratory and are traceable to NIST. Units include: spectral radiance (mW/cm2/sr/1m/1), radiance (mW/cm2/sr/1), radiant flux (watts), luminous flux (lumens) and illuminance (foot-candles).

PART NUMBER

CALIBRATION

DESCRIPTION

TYPICAL UNITS

SCC-LU

Luminance of Source

Calibrated to display

Foot-Lamberts

  
   

Luminance of a uniform source

   

SCC-RA

Radiance of Source

Calibrated to display the

W/m2/sr

  
  

Radiance of a source, integrated

 
 

Over a specific spectral ban

 

SCC-PS

Power Input

Single Wavelength

W

 

Calibrated to display total power

 

SCC-PM

Power Input

Multiple Single Wavelengths

W

 

Calibrated to display total power

 
     
     

Entering a sphere at 33 single wavelengths

    
 

From 300 to 1100 m, every 25 nm

 

SCC-LF

Luminous Flux Input

Calibrated to display the luminous

lumens

 

Flux entering a sphere

 

SCC-AL

Alternate Units

Set SC-5500 to display and existing

lumens

 

calibration in alternate units: eg. nits

 
   
   

as well as foot-lamberts

   
 

 

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