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

The HygroCal100 provides a stable test chamber to quickly evaluate the performance of relative humidity sensors across a wide range of 5 to 95% relative humidity.

Its intuitive 4” touch screen display and interface 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.

The HygroCal100 allows you to automate your calibration procedure with ease, and will provide a complete logged output of all probes under test against the reference instrument in csv format, ready to download to your USB memory device.

Coupled with an Optidew Vision chilled mirror hygrometer, the HygroCal100 becomes a powerful transportable calibration facility.

The HygroCal100 can optionally be fitted 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.

Product Features

  • Truly portable at 7lb, and completely self-contained
  • Intuitive UI makes automating probe verification 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 verification
  • Internal calibration correction cycle ensures continued confidence
  • Optional chilled mirror reference hygrometer, allowing use as a calibrator
  • Download logged verification data direct to USB memory

MDM25 Probes

Technical Specification

Generation range 5 to 95% RH
RH stability ±0.5%
RH uniformity ±0.5%
Stabilization time Typically <5 min for full stability from step changes of 10% RH
Control Probe
RH accuracy ±0.8%
Temperature accuracy ±0.2°C
Long term stability ±1% per year ±1% per year
Electrical Specifications
User interface 4.3” color LCD with touchscreen
Interface with probes 24V excitation voltage, accepts signals: 0–20 mA, 4–20 mA, 0–1 V, 0–5 V, 0–10 V
Measurement units %RH, temperature in °C, °F
Displayed resolution 0.1
Data logging 2Gb internal memory available for log files; or 10.6yrs storage at 5s intervals
Battery (optional) 1500 mAh
Power supply 24 V DC (100 to 240 V AC, 50/60 Hz adaptor included)
Mechanical Specifications
Probe ports 8 - port adaptors to accomodate probes of diameters: 12mm, 13.5mm, 14mm, 15mm, 18.5mm, 19mm, 24mm, 25mm
Chamber volume Approx 1050cm3 (64.07in3)
Maximum probe insertion depth 60mm (2.36”)
Desiccant reservoir capacity 25cm3 (1.53in3)
Saturator reservoir capacity 25ml (0.85fl oz)
Environmental conditions +5 to +40°C
Dimensions 100 x 250 x 300mm (3.94” x 9.84” x 11.81”) (h x w x d)
Weight 7lb

Related Products

HS3 HygroSmart HS3
Advanced Interchangeable Relative Humidity and Temperature Probe
OptiCal OptiCal
Premium transportable calibration solution for humidity sensors with built in chilled mirror reference.
Portable, battery-operated hand-held hygrometer, that measures relative humidity, temperature and calculated dew-point, volumetric humidity or wet bulb temperature.
Optidew Vision Optidew Vision
The Optidew Vision has the same wealth of features as the Optidew, but is supplied in a bench-top package with a carry handle, making it perfect for laboratory use.
S8000 Remote S8000 Remote
With its compact remote sensor design, the S8000 Remote is the perfect reference instrument in environmental applications and climatic chambers. It features ±0.1°C accuracy across its -40 to +90°C dew-point measurement range.