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Home » Products » Humidity & Temperature Sensors » Hygrogen Transportable RH and Temperature Calibration Laboratory » Hygrogen Transportable RH and Temperature Calibration Laboratory

Hygrogen Transportable RH and Temperature Calibration Laboratory

Hygrogen Transportable RH and Temperature Calibration Laboratory
Hygrogen Transportable RH and Temperature Calibration Laboratory
Product Code : 02
Product Description

Since its launch, HygroGen has become the benchmark for transportable RH and temperature calibrators. Hundreds of users worldwide have identified that this tool for rapid generation of fixed humidity and temperature conditions can save significant amounts of time when performing RH and temperature calibrations. The pharmaceutical industry especially has embraced the HygroGen’s capability to calibrate over an instruments working range to satisfy the stringent demands of Quality and Compliance regulations. The ability to transport the HygroGen to the installation location means that a complete system qualification is possible.

The second generation HygroGen builds on the excellence of the first series with higher specifications, additional features and improved design. Using a state-of-the-art embedded controller with touch screen user interface has been developed to provide the user with simplified setup and configuration tools. This includes a programmer function so that multiple set-point changes can be user defined. The embedded platform also provides additional features such as an integrated nine port USB hub, external DVI monitor connection, integrated data acquisition and calibration adjustment software.

The design objective was to create the perfect balance of form and function - precise generation of stable conditions, whilst being easy-to-use and maintain.

Transportable Rh And Temperature Calibration Laboratory :

  • Generates stable humidity and temperature conditions
  • Transportable calibration solution
  • Humidity equilibrium typically in 3 minutes
  • Calibrate up to five RH probes simultaneously
  • Integrated touch screen PC and USB hub
  • External heated sample loop for reference hygrometer connection
  • Easy-to-use graphical user interface

The new HygroGen2

Standard Features :

  • HygroGen2 has a control range of 0…60 °C. Improved mechanical design provides better thermal performance in terms of speed of response, control stability and tempera- ture gradients. Temperature control stability at equilibrium is better than or equal to +0.05 K.
  • External heated sample points for connection of a a chilled mirror reference hygrometer are standard. This allows the user to precisely verify the calibration of the HygroClip control probe at any time, or to reduce overall calibration uncertainty.
    • Touch screen interface
    • Easy to use
    • LC display
  • Humidity generation is by a piezoelectric element with digital PID control allowing optimised response across the temperature range. At equilibrium RH control is better than or equal to ±0.1 %rh.
  • Integrated USB ports for the connection of peripheral devices such as a mouse and keyboard. Rotronic probes with USB cables can also be connected.
  • The HygroGen manual includes an uncertainty framework to allow users to derive their own calibration uncertainty.

Technical Information :

HygroGen2 Specification

Relative Humidity




HygroClip2-S, capacitive RH sensor, Pt100 temperature sensor


Embedded multiple input PID controller, touch screen graphical user interface


5….95 %rh


Stability at Equilibrium

<0.1 %rh


Chamber temperature gradients

<0.05oC (15…50oC), <0.1oC (5…60 oC), +0.15 at 0 oC

Generation method

Mixed flow with desiccant dryer cell and piezoelectric humidifier

Peltier thermoelectric element with radial chamber mixing fan


Response time

3 mins (35 to 80 % change)

5 mins (20 to 30 °C change)

Control probe specification

±0.8 %rh (23 oC +5) +2 %rh (0…60 =oC)

+0.1 K (23 oC +5) +0.3 K (0…60 oC)

Typical calibration uncertainty

+1.5 %rh (k=2) at 23 oC

+0.15 oC (k=2) 15…50 oC

Standard Features

Water level

Low and high alarm, bar graph status indication

Water quality

UV sterilisation, auto time cycling

Desiccant condition

Condition monitored during control operation

USB ports

7 front, 2 rear

Reference connection

Temperature controlled outlet and inlet, 6mm fittings

Programmer function

20 user program memory, up to 200 set-point changes per program

Mechanical & Electrical

Chamber volume

2 litres, effective working volume 1.5 litres


110…240 VAC 50/60 Hz, 3A


Powder coated aluminium, IP20, 450 x 406 x 205mm (Max.)


13 kg


Safety: EN 61010-1:2001 EMC: EN 61326-1:2006EN 61326-1:2006 &EN 61000-6-1:2007

Order code:



HygroGen with touch screen user interface, set-point control and programmer function, heated sample loop, 1x desiccant cell, 1x fill syringe, embedded HW4-P software. Order chamber door separately.

Doors & Fittings


HG2 door 5x15 mm ports (for 5 HygroClips) with 5 bungs, order specific B1 sleeves for smaller probe diameters


HG2 door 5x30 mm ports with 5 bungs, order specific B8 sleeves to suit smaller probe diameters


HygroGen probe door for HF3 wall mount transmitters


HG2 clear acrylic door (no ports) for instruments with displays


HG2 fully custom door for >30 mm, see xx diameter codes


15 mm Bung


B1 probe sleeves (15 mm external, internal probe diameter see xx codes)


30 mm Bung


B8 probe sleeves (30 mm external, internal probe diameter see xx codes )



Additional desiccant cell, pre-filled with molecular sieve


Fill tube and syringe


Molecular sieve desiccant (3 kg)



HG2 embedded HygroClip2 auto calibration adjustment module


Transit bag, lightweight


HygroGen heavy-duty transit case


DVI monitor and lead


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