
OL 16A
Programmable DC Current Source (10-100W)
The OL 16A, used to operates the OL Series 550 Tungsten Ribbon Lamp Standards of Spectral Radiance with Sapphire Windows, is a microprocessor controlled, precision DC current source. This programmable DC current sources is specifically designed for operation of tungsten filament photometric, radiometric, and spectroradiometric standards. In addition to providing a highly accurate output current (±0.01% current accuracy) the supply has a number of special design features which are highly desirable when operating valuable lamp standards.
Note: Tungsten lamp standards must be operated at their specified calibration current in order to realize the accuracy of the standard. A small error in setting the lamp current can induce a sizable, wavelength dependent error in the spectral output of the lamp.
Refer to Bulletin 121 for further info on:
- Spectral Radiance Uncertainty
- Performance Specifications
- PCS Remote Control Software

OL 65A
Programmable DC Current Source (10-200W)
The OL 65A, used to operate the OL Series 220, 245, 300 and 752-10 standards in addition to the OL Series 740-20 High Intensity Source Attachment, is a microprocessor controlled, precision DC current source. This programmable DC current sources is specifically designed for operation of tungsten filament photometric, radiometric, and spectroradiometric standards. In addition to providing a highly accurate output current (±0.01% current accuracy) the supply has a number of special design features which are highly desirable when operating valuable lamp standards.
Note: Tungsten lamp standards must be operated at their specified calibration current in order to realize the accuracy of the standard. A small error in setting the lamp current can induce a sizable, wavelength dependent error in the spectral output of the lamp.
Refer to Bulletin 121 for further info on:
- Spectral Radiance Uncertainty
- Performance Specifications
- PCS Remote Control Software

OL 83A
Programmable DC Current Source (10-1000W)
The OL 83A, used to operate all of the standards and sources listed under the OL 65A in addition to the OL Series 200 and OL FEL standards, is a microprocessor controlled, precision DC current source. This programmable DC current sources is specifically designed for operation of tungsten filament photometric, radiometric, and spectroradiometric standards. In addition to providing a highly accurate output current (±0.01% current accuracy) the supply has a number of special design features which are highly desirable when operating valuable lamp standards.
Note: Tungsten lamp standards must be operated at their specified calibration current in order to realize the accuracy of the standard. A small error in setting the lamp current can induce a sizable, wavelength dependent error in the spectral output of the lamp.
Refer to Information Sheet (IS14) for further info on:
- Spectral Radiance Uncertainty
- Performance Specifications
- PCS Remote Control Software
Refer to Bulletin 121 for further info on:

OL 45D
Deuterium Lamp Precision Current Source
The OL 45D is specifically designed for operating the OL UV-40 and OL 752-12 Ultraviolet Irradiance Standards. The OL 45D generates currents of 300 to 500 mA with a current accuracy of ± 0.1%. Automatic lamp starting is standard. A digital selection DS option is also available. The OL 45D is also used with the OL 740-20D/UV High Intensity Source Attachment.
Refer to Bulletin 34 for further info on:
- Performance Specifications