HygroCal100 humidity validator MICHELL

Description

The HygroCal100 humidity validator from MICHELL is a compact and portable system designed for simple automated validation of relative humidity sensors.

This versatile validation kit contains a stable test chamber that allows rapid evaluation of the performance of relative humidity sensors over a wide range from 5 to 95% relative humidity. Its intuitive design allows the integration of up to 7 probes with different diameters and output signals, ensuring flexibility and ease of use.

Equipped with a 4.3-inch LCD touchscreen, the HygroCal100 allows the display of all measured values from reference and test probes, along with a graphical display of the chamber stability trend. It is able to automate complete verification processes with ease and provide the complete recorded output in CSV format straight to your USB memory device, reducing the time spent reading the results.

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 relative to ambient temperature in the laboratory and ±0.5% RH uniformity throughout the chamber.

The advanced user interface allows any hygrometer with analogue output to be assigned as a reference device, providing flexibility to include a traceable reference in the validation process. With the automatic validation system, users can define their own calibration procedure, tailoring the chamber control to their needs.

With split-flow mixing technology with control
HS3
provides reliable and stable control of chamber conditions. A simple, low-maintenance system can very quickly transition between and stabilise under constant humidity conditions. It contains a saturation tank and a drying tank. By pushing outside air through one of these tanks into the chamber, the conditions inside can change rapidly.

Sensor
HygroSmart HS3
uses the latest Michell H8000 capacitive polymer element, developed as a result of more than 40 years of experience in performing demanding moisture measurements, to provide exceptional accuracy over the entire RH range.
– accuracy of the replaceable sensor ±0.8 % RH
– ±1% RV long-term stability per year
The sensor stores its own unique calibration data in its embedded electronics, ensuring 100% interchangeability.

 

Who is it suitable for:

1. On-site or laboratory verification: its portability and automation capabilities make it suitable for use in both field and laboratory environments. This makes it suitable for a wide range of industries that require accurate and reliable humidity checking.
2. Validation of RH probes in pharmaceutical production plants: in the pharmaceutical industry, where high standards of quality and accuracy are crucial, HygroCal100 is ideal for the validation and verification of relative humidity sensors used in various stages of production.
3. Validation of RH probes in meteorological offices: in meteorological offices, the accuracy of relative humidity measurements is crucial for weather forecasting. HygroCal100 can provide reliable and accurate validation of relative humidity sensors, which is essential for accurate weather forecasting and monitoring.
4. Validation of RV probes in food production: in the food production industry, where humidity control is crucial to maintain product quality and safety, HygroCal100 is useful for the validation and verification of relative humidity sensors used at different stages of food production.

 

Technical specifications

CHAMBER

• operating range: 5 … 95% RH
• RH stability: ±0.5 %
• RH uniformity: ±0.5 %
• stabilisation time: typically <5 minutes for full stability from step changes of 10% RH

CONTROL PROBE

• RV accuracy: ±0.8 %
• Temperature accuracy: ±0.2 °C
• long-term stability: ±1% per year

ELECTRICAL SPECIFICATIONS

• User interface: 4.3″ colour LCD with touch screen
• Probe interface: 24 V excitation voltage, accepts signals: 0 … 20 mA, 4 … 20 mA, 0 … 1 V, 0 … 5 V, 0 … 10 V
• units of measurement: % RH, temperature in °C, °F
• displayed resolution: 0.1
• data logging: 2 Gb of internal memory available for log files; or 10.6 years of storage at 5 s intervals
• Battery (optional): 1500 mAh
• Power supply: 24 V DC (100 … 240 V AC, 50/60 Hz adapter included)

MECHANICAL SPECIFICATIONS

• probe port: 8 – probe port adaptors for 12 mm, 13.5 mm, 14 mm, 15 mm, 18.5 mm, 19 mm, 24 mm, 25 mm diameters
• chamber volume: approx. 1050 cm3
• Maximum probe insertion depth: 60 mm
• Desiccant tank capacity: 25 cm3
• saturator reservoir capacity: 25 ml
• environmental conditions: +5 … +40°C
• Dimensions: 100 x 250 x 300 mm (h x w x d)
• weight: 3.2 kg

 

Calibration kits

The HygroCal100 can be supplied with several different combination packages, allowing you to start checking the traceable calibration immediately:

 

MDM25

The MDM25 is a battery-powered portable handheld hygrometer that is the ideal portable reference for use with the HygroCal100. The MDM25 is supplied with a standard probe that is calibrated and traceable to national standards. A port adapter is also included to attach this probe to the HygroCal100 chamber

 

Optidew 401

The Optidew is a fast-responding hygrometer with a cooled mirror that is well suited for both industrial humidity control and precision laboratory applications. It is available in desktop and wall-mounted configurations and has an intuitive touchscreen interface.

Using the latest advances in cooled mirror technology, it has a response speed comparable to polymer relative humidity sensors, combined with the no-movement reliability of all cooled mirror instruments.

 

Other names: HYGROCAL 100, HYGROCAL-100, HYGROCAL_100