Michell Instruments HygroCal100 Specifications

Calibration Instruments

HygroCal100

Humidity Validator

A complete, compact, portable system for automated validation of relative humidity probes.

Highlights

• Lightweight and completely self-contained

• Intuitive UI makes automating probe verifi cation
simple

• Integral battery pack means validation can be done
without access to services

• Validate 7 probes simultaneously

• Automated validation procedures for complete
hands-off probe verifi cation

• Internal calibration correction cycle ensures
continued confi dence

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Applications

• Validation of RH probes at pharmaceutical
manufacturing facilities

• Validation of RH probes at meteorological offi ces

• Validation of RH probes in food manufacturing

Calibration Instruments

Introducing the HygroCal100 Humidity Validator

The all-in-one validation package for
your humidity sensors

The HygroCal100 provides a stable test chamber to evaluate
the performance of relative humidity sensors across a wide
range of 5 to 95% relative humidity. The intuitive design
allows the probes under test to be fully integrated with the
chamber and user interface (UI), so up to 7 probes with
a variety of diameters and output signals can be powered,
monitored and logged simultaneously by one self-contained
unit.

A 4.3” LCD touch-screen runs a powerful UI, which displays
all measured values from the reference and probes under
test, along with a graphical trend indication of chamber
stability. It is also capable of automating complete validation
procedures with ease, and providing a complete logged
output in csv format straight to your USB memory device, to
minimize the time you spend taking readings.

Portability

The HygroCal100 is fi tted with a high capacity battery pack,
which can power the generator and 7 sensors under test for
up to 8 hours. The unit can also run from mains power while
charging the battery.

A hard carry case is supplied with the unit, which has space
for the HygroCal100 itself , in addition to the battery charger,
spare water and desiccant.

Chamber Integrity

The HygroCal100 has a test chamber milled from a solid
piece of Acetal, with minimal sealing points, ensuring the
integrity required to maintain <5% RH from laboratory
ambient temperatures, and ±0.5% RH uniformity across the
chamber.

Integrate Your Own Reference

The HygroCal interface allows you to assign any hygrometer
with an analog output as your reference device, giving you
the fl exibility to incorporate your traceable ref erence in your
validation routine.

Automated Validation

The HygroCal100’s advanced UI allows you to defi ne your
own calibration procedure, point-by-point, assigning times
to each condition to allow your probes under test to stabilize.
The system always waits until the conditions in the chamber
are completely stable before beginning the check.

Correct Chamber Control To Your Own
Reference

To ensure continual long term stability of the chamber,
the in-built calibration correction system can compare the
readings of your traceable reference to a range of pre-set
generated conditions – making adjustments to the control
sensor to ensure that your set point always matches your
own reference.

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