The Fensor HG-101 allows simple and rapid realisation of relative humidity calibration of sensors, probes, loggers and recorders from any manufacturer.
Interchangeable probe ports and test cells are available to fit most types of instrument. The standard probe test cell has 7 ports for probes up to 30mm in diameter. Test cells with up to 14 probe ports and customised solutions to suit different instrument types such as loggers with integrated sensors are available.
Once the instruments under test are inserted in to the test cell, the operator just needs to set the required humidity value using the panel mounted switches or by software through the USB interface.
The Fensor HG-101 is impressively fast to reach a target RH value in typically 30 seconds thanks to the innovative RDSa mixing system. Stability is better than ±0.2% over the range 10 to 90 %rh. Over the full 5 to 95 %rh range, extended stabilisation time is necessary to reach the best performance.
The Fensor HG-101 humidity generator does not use a liquid water reservoir, so it can be used in different positions depending on the requirements of the calibration. Similarly, no particular care (emptying, cleaning, drying) is required between uses or during transportation.
The HG-101 humidity calibrator controls to the user set point with a precisely adjusted RH probe supplied with a SCS accredited calibration certificate. However, to achieve the lowest possible uncertainty, Metrologists would use a transfer standard reference for verification of the generated humidity and temperature.
The HG101 has been configured to work with the MBW 473-RP2 dew point mirror. The RP2 dew point measuring head fits directly in to the 30mm test cell ports, and the cable mounted Pt100 temperature probe can be positioned according to the users preference using specific adapters.
MBW Gecko software is compatible with the HG-101 and 473. It provides data display, graphing and acquisition, as well as the functionality to change set points and run profiles. Gecko can also be used to apply corrections from calibration certificates issued by ISO17025 accredited laboratories such as COFRAC, SCS, NIST, DKD, UKAS, ACCREDIA etc. Gecko is included within the supply of the 473.