Calibration Services - Now ISO/IEC 17025 Accredited!
All calibration orders are subject to the following Terms and Conditions
All precision light measurement instruments and their detectors, such as our ILT1400 and ILT1700 Light Meters, require periodic recalibration to ensure proper operation. That is why International Light Technologies has expanded our NIST traceable calibration lab, invested in new equipment, and are planning to extend our standard calibration service offering.
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Calibration Lab As our customer base has grown over the past 40+ years, and as our customers have adopted quality manufacturing standards such as ISO17025 and ISO9001, we have seen a dramatic increase in the demand for annual NIST traceable recalibration. In response to this increase in demand for calibration services we have expanded our calibration lab, invested in new equipment, and are planning to extend our standard calibration service offering. |
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Annual Re-calibration All instrumentation requires periodic re-calibration to ensure proper operation. In addition, extreme operating conditions (UV, heat, and dirt) can degrade optical performance potentially requiring an increase in re-calibration frequency. Annual re-calibration provides a relatively inexpensive guarantee of accuracy. Accurate readings translate into more efficient production processes, more reliable research and safer medical procedures. |
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NIST Traceable International Light Technologies obtains fully characterized Primary Standard Detectors directly from the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. Through the transfer of standards technique, we compare the output of a customer's detector to a standard under tightly controlled laboratory conditions. |
International Light Technologies is an ISO/IEC 17025:2005 Accredited and ISO9001:2008 Certified Company
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The list below describes the basic types of optical calibrations that we perform in our metrology lab. All instrumentation requires periodic recalibration to ensure proper operation. The PIR and YIS calibrations are our most commonly requested calibrations for radiometers and photometers, respectively. Our flexible laboratory setup allows us to perform a wide range of different calibrations at a reasonable cost. |
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Calibrations |
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Part Number |
Description |
Specifications |
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ECAL/1400 |
ILT1400 Radiometer Electrical |
Electrical accuracy and linearity check, and recalibration to NIST standards. Includes I/O check. |
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ECAL/1700 |
ILT1700 Radiometer Electrical |
Electrical accuracy and linearity check, and recalibration to NIST standards. Includes I/O check. |
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ECAL/METER |
ILT Obsolete Radiometer Electrical |
Electrical accuracy and linearity check, and recalibration to NIST standards. Includes I/O check. |
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BIR(IBIR) |
Band Irradiance Response |
Band Irradiance response, (amps)(cm²)(nm)(watt-1), of an ILT bilirubin detector |
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CSAR |
Custom Scanned Absolute Response |
Same as a SAR for other than an ILT sensor assembly or electro-optical system. Standard wavelength coverage is 250-1000 nm. |
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CSIM |
Custom Spectral Irradiance |
Spectral irradiance response of light source. |
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CSPR |
Custom Single Point Calibration |
Optical Calibration of non-ILT light measuring instrumentation. Items must be sent in full working condition. Single point optical calibrations are performed at the peak or center wavelength of the sensor combination in empirical units such as W, W/cm2, Cd, lumens, Lux etc. No repairs or adjustments are made on the unit. A calibration certificate with a reading correction factor is provided. Copy of a sample certificate is available upon request. Please contact an IL representative for approval and an RMA prior to shipping any items to ILT. |
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CSTM |
Custom Spectral Transmission |
Plot of percent transmission vs. wavelength (nm) for any filter. |
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IEO |
System Calibration |
Calibration of ILT70-based Radiometer Systems. Includes 9V battery replacement, electrical test and optical recalibration for direct readout in the appropriate optical units. |
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IEC |
ILT400 & ILT490 Belt Radiometer Calibrations |
Electrical test and optical recalibration for direct readout in appropriate optical units for ILT400 and ILT490 Belt Radiometers |
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IER |
Belt Radiometer Calibration |
Calibration of ILT290,ILT390, and ILT393 systems. Includes battery replacement, UV filter, electrical test and optical recalibration for readout in mJ/cm². |
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PINR(IPINR) |
Peak Intensity Response |
Intensity response, (amps)(sr)(watt-1), at peak sensitivity of IL detector. |
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PIR(IPIR) |
Peak Irradiance Response |
Irradiance response, (amps)(cm²)(watt-1), at peak sensitivity of an IL detector. |
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PIRE(IPIRE) |
MicroEinsteins/sec/cm² |
Same as PIR but for readout in microEinsteins/sec/cm². |
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PPR(IPPR) |
Peak Power Response |
Power response, (amps)(watt-1), at peak sensitivity of an IL detector. |
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PRR(IPRR) |
Peak Radiance Response |
Radiance response, (amps)(cm²)(sr)(watt-1), at peak sensitivity of an ILT detector. |
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SAP |
Scanned Absolute Power Response |
Scan with tabulated data of absolute power response, (amps)(watt-1) vs. nm, of an ILT detector. (250-1000 nm) |
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SAR |
Scanned Absolute Response |
Scan with tabulated data of absolute irradiance response, (amps)(cm²)(watt-1) vs.nm, of an IL detector. (250-1000 nm) |
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SARE |
Scanned Response, Einstein |
Scan with tabulated data of absolute irradiance response, microEinsteins/sec/cm² vs. nm, of an ILT detector. (250-1000 nm) |
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SAXT |
Extended Scanned Calibration |
Service to expand calibration below 250 nm (down to 200 nm) or above 1000 nm (out to 1100 nm with NIST traceability, or out to 1600 nm without traceability). Purchase of standard scan from 250-1000 nm required. |
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SRAD |
Scanned Absolute Radiance Response |
Scan with tabulated data of absolute radiance response, (amps)(cm²)(sr)(watt-1) vs.nm, of an ILT detector. (250-1000 nm) |
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SIR |
Spectral Irradiance Response |
Scan with tabulated data, (amps)(cm²)(nm)(watt-1) vs.nm, of all obsolete versions IL spectroradiometers. (250-1000 nm) |
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SOL(ISOL) |
Solar UVB Response |
Irradiance response as compared to simulated solar UVB spectral irradiance integrated below 315 nm, for an ILT UVB detector. |
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SRR |
Scanned Relative Response |
Scan with relative response data (% vs. nm), of an ILT detector. (250-1000 nm) |
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SUV |
Extended UV Scanned Calibration |
Scanned UV calibration every 2 nm from 200-400 nm. |
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VS1, VS2 |
Scanned Absolute Radiance Response |
ILT380 and ILT200 Spectroradiometer calibration includes certification and CD with calibration data. |
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VS9 |
Spectroradiometer Calibration |
ILT900 spectroradiometer calibration from 250-950 nm. Includes certification and CD with calibration data. |
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WIRA |
Wide Irradiance Response |
Wide Irradiance Response (amps)(m²)(watt-1) as compared to an extended area UVA source, spectrum integrated from 315-400 nm. |
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WIRX |
Wide Irradiance Response |
Wide Irradiance Response (amps)(m²)(watt-1) as compared to Xenon ID65 or Xenon Glass window source (Select one), spectrum integrated from 315-400 nm. |
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XIR(IXIR) |
Custom PIR at specified wavelength |
Irradiance response, (amps)(cm²)(watt-1), at specified wavelength X, within the bandwidth of an IL detector. |
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XPR(IXPR) |
Custom PPR at specified wavelength |
Radiance response, (amps)(watt-1), at specified wavelength X, within the bandwidth of an IL detector. |
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XRR(IXRR) |
Custom PRR at specified wavelength |
Radiance response, (amps)(cm²)(sr)(watt-1), at specified wavelength X, within the bandwidth of an IL detector. |
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YFS(IYFS) |
Photopic Flux Sensitivity |
Total photopic flux response, (amps)(lumen-1), of an ILT photopic detector. |
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YIN |
Standard INS250 Lamp Intensity |
Mean spherical candle power output of INS250 integrating sphere lamp. |
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EYINS(IEYINS) |
Effective Photopic Intensity Sensitivity |
Effective photopic intensity response, (amp)(eff. candela-1), of an ILT photopic detector for flash measurements. |
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YINS(IYINS) |
Photopic Intensity Sensitivity |
Photopic intensity response, (amp)(candela-1), of an ILT photopic detector. |
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YIS(IYIS) |
Photometric (Y) Illuminance Sensitivity |
Illuminance sensitivity, (amps)(ft2)(lm-1) or (amps)(m2)(lm-1), of an ILT photopic detector. |
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YCL(IYCL) |
Photometric (Y) Contact Luminance Sensitivity |
Luminance sensitivity, (amps)(fL-1) or (amps)(m2)(cd-1), of an ILT photopic detector. |
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YCOL |
Photometric Color Correction |
Modified photometric calibration at customer specified color temperature, intensity or wavelength. |
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YLS(IYLS) |
Photometric (Y) Luminance Sensitivity |
Luminance sensitivity, (amps)(fL-1) or (amps)(m2)(cd-1), of an ILT photopic detector. |
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YSAR |
Scanned Absolute Illuminance Response |
Scan with tabulated data of absolute illuminance response, (amps)(f+2)(lm-1) vs. nm or (amps)(m2)(lm-1) vs. nm, of an ILT photopic or scotopic detector. |
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ZIS(IZIS) |
Scotopic Illuminance Sensitivity |
Illuminance sensitivity, (amps)(ft2)(lm-1) or (amps)(m2)(lm-1), of an ILT scotopic detector. |
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ZLS(IZLS) |
Scotopic Luminance Sensitivity |
Luminance sensitivity, (amps)(fL-1) or (amps)(m2)(cd-1), of an ILT scotopic detector. |
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Express Service |
3 Day Priority Calibration |
3 – 5 day priority service for a maximum of 2 systems (maximum 2 calibrations per system). Additional items will be an extra $25.00 US each. No guarantee is implied. No express charge will be incurred if ILT cannot ship within 5 business days (excludes repairs and scanned calibrations). Availability of service is dependent on calibration schedule. |
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Repairs |
RPR/PARTS and RPS/LABOR |
All repairs are billed per hour plus parts. Repairs are no longer available for obsolete equipment. |
All calibrations are performed under the following environmental tolerances: 21° C ± 4° and 0 to 95% relative humidity.
All calibration and repair service orders MUST have a Return Authorization (RA) number referenced on the packaging and/or the packing list PRIOR to return shipment to ILT for service. Equipment received without a RA number will be placed on hold upon arrival pending approval for service charges. To obtain an RA number, please fill out our Return Authorization form - you will automatically receive an RA# once the form is submitted.
Please note: All calibrations are performed in the order they are received into service. Express Service orders are given priority over standard calibration orders where possible but in the event that multiple Express Service orders are in-house at the same time - Express Service orders are done in the order they were received into service. Express Service orders are subject to availability and exclude repairs and scanned calibrations. Express Service order delivery times are not guaranteed. All orders are subject to a $65 min evaluation fee. Cancelled/changed orders will be billed for any completed calibration at the time of cancellation/change, and a minimum evaluation fee of $65 if no calibrations have been performed.
If your are returning light measurement instrumentation to ILT for repair service, please review our Troubleshooting Guide prior to filling our the Return Authorization Form.
All calibration orders are subject to the following Terms and Conditions
