Meters to Measure the Intensity of a UV Light Source

Jelight Company also sells and services meters to measure ultraviolet light. Our portable handheld instrument units are battery operated, lightweight, and easy to use. Jelight Company also offers different types of probes that can be purchased separately to meet your specific measuring application.

JLT5000 Radiometer

The JLT5000 is improved upon the industry standard radiometer with rapid measurements (up to 100Hz), a broader dynamic range (100 fA to 1 mA), extensive supporting software apps, wireless communication, internal data storage, and a 4-20 mA output.

The broad linear dynamic range of the JLT5000 and the SMA input connector allow the meter to also serve as a broad-range, highly sensitive and accurate range pico ammeter.

The JLT5000 supports numerous light measurement applications including, but not limited to: Radiometry, Photometry, Research, UVGI- Sterilization, Solar, Photoresist, Optical Radiation Hazard , Photo-therapy, Photo-degradation, Plant Growth, and more…

 

Specifications
METER:
• Measurement Range: 100 fA-
1mA.
• Reverse Bias: 2 Voltages/selectable.
• Automatic Ranging: Rapid Switching through all current levels.
• WiFi: Enabled.
• Operating Temperature: -40 to 85C (Calibrated Irradiance 0-40C)
• USB: USB2, Including Power, for Single and Multiple Systems.
• USB Current Draw: 500 mA max, 250 mA typical.
• Size: 1-3/5″ H x 5″ W x 7″ L
• Input Connector: D-Sub and/or SMA.
• CE Certified: No rf/noise.

SOFTWARE: 

CLI: Command line interface sent over a serial port
Trigger: TTL, for synchronization of measurement**
Data Storage: Internal (includes units, date and time stamps)
Time Line: Scheduled data acquisition
Integration Range: Unlimited dosage/exposure
Transmission/Reflectance: (100%)
Optical Density: 0.00 to 4.00
Zero: (Dark or ambient subtraction)
Direct Reading: Current or calibrated optical units
• Apps: Meters, CLI, Bar, Trend and Reports apps all included

** Coming soon: TTL trigger and Flash App for pulsed light measurement


Features

• 10 Decade Dynamic Range of Optical Analysis.
• Wireless Transmitter, Built-in.
• Made in USA.
• Autorange, Autodark, Auto-sample with User Control Options.
• 4-20 mA Output.
• “Set It & Forget It” Remote Data Logging.
• Built-in Re-Chargeable Battery Pack.
• Multi-System Simultaneous Continuous Monitoring
• DataLight II Complementary Light Measurement and Data Collection Software Apps.
• Labview Compatible.
• NIST-Traceable/ISO17025 Accredited Calibration and Certificate.
• Backwards Compatible with JSED Detector/Filter/Optics.
• Sample Rate Up to 100 Hz, Programmable.

JLT6000 Rack Mount Multi-System Radiometer/Optometer

The JLT6000 Comes standard with two A6000 10 decade measurement boards installed. Each JLT6000 is expandable to 10 systems by adding up to 8 additional A6000 units. Each A6000 Kit includes NIST Traceable calibration from 1e-12 to 1e-3 amps and can measure current from 100 fA to 1 mA with measurement speeds of up to 100 Hz.

The A6000 is backward compatible with all JSED sensors and can store up to 20 optical calibration in empirical units such as: W, W/cm2, lux, fc, lm, cd/m2, μmol/m-2 s-1, and more…

The broad linear dynamic range of the JLT6000/A6000 and the SMA input connector allow the system to also serve as a broad-range, highly sensitive and accurate multi unit pico ammeter.

The 4-20 mA output allows for easy system control and can be connected to a PLC or 4-20 mA display.

The JLT6000 supports numerous light measurement applications including, but not limited to; Radiometry, Photometry, Research, UVGI- Sterilization, Solar, Photoresist, Optical Radiation Hazard, Phototherapy, Photo-degradation, PAR-Quantum and more.

Specifications
METER:
Measurement Range: 100 fA – 1 mA.
Reverse Bias: (2 Voltages/selectable).
Automatic Ranging: Rapid switching through all current levels.
Built-in Rechargeable Batteries.
WiFi: Enabled
Operating Temperature: -40 to 85oC (Calibrated Irradiance 0-40oC)
USB: USB2, Including Power, for Single and Multiple Systems
USB Current Draw: 500 mA max, 250 mA typical per A6000 unit
Input connector: D-Sub and/or SMA.
CE certified: No rf/noise.
SOFTWARE: 
Apps: Meters, CLI, Bar, Trend, Flash, and Reports apps all included
Direct Reading: Current or calibrated optical units
Time Line: Scheduled data acquisition
Data Storage: Internal (includes units, date and time stamps)
Integration Range: Unlimited dosage exposure
Transmission/Reflectance: (100%)
Optical Density: 0.00 to 4.00
Zero: (Dark or ambient subtraction)
Features

• Each JLT6000 Rack Mount Kit Includes 2 units, Expandable to 10 Units per Rack

(A6000 add on kit sold separately)

• Stand-Alone or Mount in Standard 19” Rack
• Run Multiple Systems Simultaneously Allowing Measurements From 2 to Hundreds of Units.
• 10 Decade Dynamic Range of Optical Analysis.
• Built in Wireless.
• Made in USA.
• Autorange, Autodark, Auto-sample with User Control Options.
• Multi-System Simultaneous Continuous Monitoring
• DataLight II Complementary Light Measurement and Data Collection Software for Windows 7 & 8.
• Labview Compatible.
• NIST-Traceable/ISO17025 Accredited Calibration and Certificate.
• Backwards Compatible with JSED Detector/ Filter/Optics.
• Sample Rate Up to 100 Hz, Programmable.

Ultraviolet Meter JLT1000

 

The most versatile UV, VIS, and IR datalogging optometer available on the market today. The JLT1000 design is backed by a number of years of light measurement experience and comes complete with NIST traceable, ISO 17025 accredited calibrations.

The JLT1000 was designed with customer configuration in mind and can easily accommodate most solid-state detectors, 1/2” and 1” optical filters, and a vast selection of input optics.

The JLT1000 is capable of measuring over 6 decades of light and providing direct readout in W, W/cm2, Lux, Fc, Lumens, cd/m2, cd, W/sr, W/sr/cm2, and more. On board data storage allows continuous monitoring at customer specified sampling rates using the “set it and forget it” datalogging.

Features:

·         6 decade dynamic range of optical analysis

·         Autorange, Autodark with manual control options

·         4-20 mA output

·         “Set it & forget it” remote data logging w/ on-board data storage

·         Multi-System Continuous monitoring (up to 32 systems w/ one hub)

·         DataLight II Complementary light measurement and data collection software apps

·         Auto-sample rate configuration to reduce noise

·         NIST-Traceable calibration and certificate

·         Many pre-configured application-specific detector/filter/optics combinations available

·         Made in USA

Specification

·         Six Decades of Light Sensitivity

·         Optical Density: 0.00 to 4.00 Optical Density

·         Optical Density Repeatability: (single) ±1%, (multiple) ±2.5%

·         Operating Temperature: -40 to 85 0C (Calibrated Irradiance 0-50 0C)

·         USB: USB2, Including Power, for Single and Multiple Systems

·         USB Current Draw: 200 mA max, 130 mA typical

·         Simple, well documented API for Custom Programming

·         Weight: Less than 1lb

·         Size: Approx. 2” x 3”

Typical Applications: UV Monitoring Including: Bottled beverage and food industry, drinking and pool water disinfection, HVAC, semiconductor, pharmaceutical/cosmetics, wastewater/municipal disinfection.

Other applications include process monitoring, curing, plant photobiology, thin film deposition, ribbon clarity/glass production and liquid turbidity, and transmission measurements.

Ultraviolet Meter JLT800

The Jelight Company JLT800 radiometers measure everything you need and includes ISO17025 accredited calibration to ensure accuracy. The JLT800 UV meter simplifies measurement by continuously sampling until UV light is detected, then automatically measuring. The device’s large OLED display provides both numerical and graphical representations of the irradiance and dosage. Sampling occurs at 3000 readings per second, allowing belt speeds of up to 77 meters per second, providing a high-resolution profile for both continuous and pulsed light sources.

Feature-Rich Radiometer that Responds to Your Needs

Features

• Up to 3,000 samples per second.
• Stores 20 unique device IDs.
• Profiling.
• Optic and controls on one side.
• Auto/Manual/Live modes.
• Stores up to 1,000 profiles.
• Large OLED display.
• ISO17025 calibration.

Benefit

• Measure Pulsed or Steady State.
• Like having multiple meters in one.
• Generates hi-resolution graph.
• Same orientation for all processes.
• Flexible for multiple applications.
• Track multiple systems over years.
• Easy visualization of your data.

Filtration Options

The JLT800 spectral filtration was designed to match the photo initiator’s response to UV light which is directly related to its absorption and is very wavelength selective. Most lamps emit broadband UV/IVS/IR, and the lamps output may not change evenly over all wavelengths. The JLT800 filters were designed to monitor changes in output in the areas that effect the absorption, and in turn the effectiveness of the curing. Whether you’re using a low output fluorescent source for sterilization, high intensity mercury or xenon lamps for curing, or narrow band LED’s for photolithography, there is a version of the JLT800 optimized for your needs. The response curves for each filtration option are shown below. Custom designs are also available.

 

Specifications

Range: 4.5 decade (5 mW/cm2 to 40 W/cm2)

Readout: mW/cm2, mJ/cm2, J/cm2 & profile/graph, Date, Time, Temp

Sensors: Linear, Solid States, GaAsp, & SiC

Dimensions: 102 x 152 x 12.7 mm (L/W/H)

Display: 19 x 77 mm OLED

Power: Micro USB & Rechargeable Battery

Temp: 0-75 Degress C (internal case temp)

Input Optic: Cosine corrected diffuser

Memory: 400,000 data points

Models & Spectral Ranges (in nm)

JLT800-UVA: 315-390

JLT800-BAV: 275-475

JLT800-UV: 250-400

JLT800-CUV: 215-350

JLT800-UVF: 360-400 Flat (275-450)

Custom Filtration: Contact Us

Ultraviolet Meter JEL2400

Meet the JEL2400. This low-profile, high-intensity germicidal detector has detectors heads configured specifically for the 254 nm wavelength or 365* nm wavelength and offers research-grade quality at an affordable price. The detectors narrow bandwidth at the center wavelength of 254 nm helps facilitate the measurement of germicidal effectiveness at 254 nm from high intensity germicidal UV sources.

UV Meter Features:

  • 8 decade dynamic range
  • Meter & sensors with NIST traceable ISO17025 accredited calibration
  • Hand-held and compact design
  • Easy-to-read 4.3” touch display
  • Screen can be flipped for portrait or landscape viewing
  • Auto-ranging
  • Smart averaging
  • Built-in rechargeable battery that lasts up to 8 hours
  • Measurement speeds of up to 100 micro-seconds

UV Meter Specifications:

 

  • Measurement Range: 2 x 10-7 to 2  W/cm2
  • Spectral Range: 249 – 259 nm
  • Center wavelength 254 nm

* 254 nm and 365 nm configurations are separate detector heads.

UV Meter JX11

Please note: This model is now discontinued. However, Jelight Company will still perform calibration services to existing models.

The JX11 is a multi-functioning meter for photometric, radiometric, and luminous color quantities in combination with the appropriate probe heads. USB interface equipped. The JX11 can be operated with several detector heads. In order for the meter to display the measured values in absolute quantities, the meter must be ‘told’ which probe is connected to it. The calibration correction data of the probe ordered together with the meter is stored in the meter at the factory. The menu mode (see section 1.8) is used to select the correct factor in the JX11. If the probe was calibrated with removable accessories, the appropriate calibration for the detector head with the selected accessory must be activated. If the detector head calibration includes a data table of its wavelength dependent sensitivity, the wavelength to be measured must be selected.

 

UV Meter JL1700

Please note: This model is now discontinued. However, Jelight Company will still perform calibration services to existing models.

The JL1700 is a very sophisticated microprocessor based computer controlled current and conductance UV meter that maintains 0.1 percent linearity over most of its extremely wide dynamic range. This current reading range spans from less than 0.3 pico-amperes to 2 micro-amperes with 3 digit resolution, allowing a spectral range of 190 nm to 3.5 microns with unmatched resolution, accuracy, and reliability. The JL1700 is capable of auto-ranging in the DC direct measurement mode as well as in the integration mode over the entire 9 decade range. The automatic zeroing feature is complemented by the ability to set a 100 percent value for simple measurements in percentages of the measured maximum and for differential (percent change) measurements. Multiple input power selection, computer interface, analog recorder output, and remote computer control are all standard features. These versatile features allow the JL1700 to be used in numerous applications. To accommodate demanding operating environments, this model can be operated within a temperature range of 0 to 40 degrees Celsius or even greater ranges with the remote detectors. The JL1700 maintains complete compatibility with a multitude of detectors, attenuators, filters, and diffusers.