We quote on almost any type of temperature or relative humidity calibration that is different from these standardized calibration tests.  Call us at 704-827-4331 and press 1#. 
Calibration Test Details Brief Description and Notes Ordering*
Relative Humidity Two Point Calibration

This test subjects humidity loggers or humidity sensing meters to 2 different controlled humidity stable conditions in a humidity calibration chamber long enough to achieve equilibration and a steady response.  The readings obtained from the tested device are recorded as "as found" humidity values.  The report compares those readings with data from a calibrated source as reference values.  Deviations from this reference value are computed as the difference between the "as found" values and the reference values.    

Testing for this RH2AF procedure is standardized at +25.0C.   

Please specify if you require documentation in F or C.
Use this calibration procedure if you are doing routine humidity measurements within a limited range.  The two standard points will be set at 33%RH and 76%RH.  Calibrations are performed at +25.0C.

This calibration is typically used for conformation in regulated programs and for food and pharmaceutical applications using routine measurements.

We have the capability to calibrate at different temperatures and relative humidity values, but extra charges may apply.
RH2AF
Calibration
$52.00


 
Relative Humidity Three Point Calibration

This test subjects humidity loggers or humidity sensing meters to 3 different controlled humidity stable conditions in a humidity calibration chamber long enough to achieve equilibration and a steady response.  The readings obtained from the tested device are recorded as "as found" humidity values.  The report compares those readings with data from a calibrated source as reference values.  Deviations from this reference value are computed as the difference between the "as found" values and the reference values.

Testing for this RH3AF procedure is standardized at +25.0C.
Use this calibration procedure if you make a wider range of humidity measurements or if environmental conditions vary more than expected in a controlled situation.  The three standard points will be set at 33%RH, 50%RH and 76%RH.  Calibrations are performed at +25.0C.

This calibration is typically used for situations where humidity monitoring is performed in transit or under more variable conditions than highly controlled indoor applications.  It is used in this context for regulated programs or anywhere where sustained accuracy is important.

Note that many regulated programs specify that calibrations be performed at 90%, 50% and 10% of the full expected range in typical usage of the humidity monitor.
RH3AF
Calibration 
$62.00
 

Temperature Three Point Calibration

This test subjects temperature loggers or temperature sensing meters to 3 different controlled temperature stable conditions in each of two constant temperature calibration chambers long enough to achieve equilibration and a steady response.  The readings obtained from the tested device are recorded as "as found" temperature values.  The report compares those readings with data from a calibrated source as reference values.  Deviations from this reference value are computed as the difference between the "as found" values and the reference values.
This calibration procedure is the most typical one that is performed on temperature measuring devices.  The range we cover with this test is from +40C down to -10C under strict thermostatic control (contact us for dry ice or cryogenic temperatures).  Our standard calibration temperatures at +25C, +15C and +5C.  We can also eliminate one of these points and add -10C as the low point.

We have the capability to test at other temperature levels in a three point calibration, but extra charges may apply.

T3AF
Calibration
$57.00

Temperature Two Point Calibration

This test subjects temperature loggers or temperature sensing meters to 2 different controlled temperature stable conditions in each of three constant temperature calibration chambers long enough to achieve equilibration and a steady response.  The readings obtained from the tested device are recorded as "as found" temperature values.  The report compares those readings with data from a calibrated source as reference values.  Deviations from this reference value are computed as the difference between the "as found" values and the reference values.
This calibration procedure is used for special purpose temperature sensor devices that are operated in narrower ranges (example: checking of refrigeration systems that operate under thermostatic control).

The two points will be performed at  your choice of two points from these standard ranges:
+25C, +15C,  +5C and -10C. 

We have the capability to test at other temperature levels in a two point calibration, but extra charges may apply.

T2AF
Calibration
$47.00
 

Infrared Meter Three Point Calibration

This test subjects Infrared sensing meters to 3 different controlled temperature flat plane "targets", each independently controlled and calibrated to maintain known temperatures.   The constant values are recorded from reference digital meters connected to the targets.  The readings obtained from the tested Infrared meter device are recorded as "as found" temperature values.  The report compares those readings with data from a calibrated source as reference values.  Deviations from this reference value are computed as the difference between the "as found" values and the reference values.  
This is a standardized test for Infrared thermometers.  IR thermometers are used in many regulated programs and our certification is acceptable for those programs.

Please specify our standard range (+40.0C. +22.5C and +5C or our low range (two from this list, plus a deep frozen reference point that is typically in the -10C range. 

Note that many regulated programs specify that calibrations be performed at 90%, 50% and 10% of the full expected range in typical usage of the infrared device.
IR3AF
Calibration 
$35.00




IR3AF-LOW
Calibration 
$57.00


Temperature and Humidity Two Point Calibration +

This test subjects humidity/temperature loggers or humidity/temperature sensing meters to 2 different controlled temperature and humidity stable conditions in a temperature and humidity calibration chamber long enough to achieve equilibration and a steady response for both values (each humidity standard value is associated with a paired temperature value).  The readings obtained from the tested device are recorded as "as found" humidity values and "as found" temperature values.  The report compares those readings with data from a calibrated source as reference values.  Deviations from this reference value are computed as the difference between the "as found" values and the reference values.
Choose this test if your requirements are the same as the two point relative humidity calibration test (see above), but the specific requirements of your program require that the temperature at which the relative humidity test is performed be independently verified on the calibration certificate.

This test designation also applies if you require relative humidity testing at at temperature different from the standard RH testing temperature of +25.0C.  Please specify temperature reference points required when ordering.  Temperature designations must be non-condensing.
RHT2AF
Calibration 
$70.00

 
Temperature and Humidity Three Point Calibration +

This test subjects humidity/temperature loggers or humidity/temperature sensing meters to 3 different controlled temperature and humidity stable conditions in a temperature and humidity calibration chamber long enough to achieve equilibration and a steady response for both values (each humidity standard value is associated with a paired temperature value).  The readings obtained from the tested device are recorded as "as found" humidity values and "as found" temperature values.  The report compares those readings with data from a calibrated source as reference values.  Deviations from this reference value are computed as the difference between the "as found" values and the reference values.
Choose this test if your requirements are the same as the three point relative humidity calibration test (see above), but the specific requirements of your program require that the temperature at which the relative humidity test is performed be independently verified on the calibration certificate.

This test designation also applies if you require relative humidity testing at at temperature different from the standard RH testing temperature of +25.0C.  Please specify temperature reference points required when ordering. Temperature designations must be non-condensing.
RHT3AF
Calibration 
$80.00

 
Relative Humidity Two Point Calibration
with Device Reset


This test is identical to RH2AF, except that the particular model of humidity meter or logger being tested has an available feature of resetting the readings (either by means of software settings or physical adjustments of a set screw) .  The customer requires that after a deviation is recorded, that the lab make an adjustment to improve reading accuracy. As found values are thereby adjusted to minimize the deviation.  After the adjustments, the values rendered by the device are reported as "as left" values in the final report.  
This test is the same as the two point relative humidity test, but with the addition of a deliberate reset of the device to the corrected reading. 

We use this procedure with our DataWatch Elite Humidity Loggers, as these devices are capable of resetting in software.  If you have a different brand of device, please provide the manual and/or software to perform the required reset.
RH2AFAL
Calibration 
$80.00

 
Relative Humidity Three Point Calibration
with Device Reset


This test is identical to RH3AF, except that the particular model of humidity meter or logger being tested has an available feature of resetting the readings (either by means of software settings or physical adjustments of a set screw) .  The customer requires that after a deviation is recorded, that the lab make an adjustment to improve reading accuracy. As found values are thereby adjusted to minimize the deviation.  After the adjustments, the values rendered by the device are reported as "as left" values in the final report.  
This test is the same as the three point relative humidity test, but with the addition of a deliberate reset of the device to the corrected reading. 

We use this procedure with our DataWatch Elite Humidity Loggers, as these devices are capable of resetting in software.  If you have a different brand of device, please provide the manual and/or software to perform the required reset.
RH3AFAL
Calibration 
$90.00

 
Relative Humidity and Temperature Two Point Calibration
with Device Reset
+
 
This test is identical to RHT2AF, except that the particular model of humidity / temperature meter or logger being tested has an available feature of resetting the readings (either by means of software settings or physical adjustments of a set screw) .  The customer requires that after a deviation is recorded, that the lab make an adjustment to improve reading accuracy. As found values are thereby adjusted to minimize the deviation.  After the adjustments, the values rendered by the device are reported as "as left" values in the final report.
This test is the same as the two point relative humidity and temperature test test, but with the addition of a deliberate reset of the device to the corrected reading. 

We use this procedure with our DataWatch Elite Humidity Loggers, as these devices are capable of resetting in software.  If you have a different brand of device, please provide the manual and/or software to perform the required reset.
RHT2AFAL
Calibration
$85.00

 
Relative Humidity and Temperature Three Point Calibration
with Device Reset
+

This test is identical to RHT3AF, except that the particular model of humidity / temperature meter or logger being tested has an available feature of resetting the readings (either by means of software settings or physical adjustments of a set screw) .  The customer requires that after a deviation is recorded, that the lab make an adjustment to improve reading accuracy. As found values are thereby adjusted to minimize the deviation.  After the adjustments, the values rendered by the device are reported as "as left" values in the final report.
This test is the same as the three point relative humidity and temperature test, but with the addition of a deliberate reset of the device to the corrected reading. 

We use this procedure with our DataWatch Elite Humidity Loggers, as these devices are capable of resetting in software.  If you have a different brand of device, please provide the manual and/or software to perform the required reset.
RHT3AFAL
Calibration 
$95.00
*Please note that shipping will be added to your order for return of your instrument.



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