Michell Instruments HygroCal100 Specifications

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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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Technology: Divided Flow Mixing with HS3 Control

The simple, low maintenance system can transition between and stabilise on constant humidity conditions very quickly. It features a reservoir for saturation and a reservoir for desiccation. By driving ambient air through either one of these reservoirs and into the chamber, the conditions inside can be quickly altered.

Reliable, Stable Control

The HygroSmart 3 sensor utilizes the new H8000 capacitive polymer element and high resolution electronic hybrid technology, to give outstanding accuracy across the complete RH range, and stability throughout a wide temperature spectrum.

• Interchangeable sensor accuracy ±0.8% RH

• ±1% RH long-term stability per year

C digital interface

• I The sensor stores its own unique calibration data

within its integral electronics, ensuring 100% ﬁ eld interchangeability.

HS3

Set Point

Internal Reference Humidity

Humidity

56.9

%RH

Probe 1

56.9

%RH

CHAMBER

55.0%

Temperature

21.0

Temperature

21.0

Calibration Instruments

MINUTES

Responding

00 : 15 : 37

PUMP

13:04

Auto

TABLE VIEW

SOLENOID

100

%RH

ºC

Chamber: Mode: Next Point:

CALIBRATION

SETTINGS

Set Point

SYSTEM

SETTINGS

ºC

DESICCANTSATURATOR

Calibration Kits

The HygroCal100 can be supplied with several different combination packages, allowing you to begin making traceable calibr ation checks immediately.

MDM25

The MDM25 is a portable, battery-operated hand-held hygrometer, which makes an ideal portable reference for use with the HygroCal100. The MDM25 is supplied with a standard probe, which is calibrated traceable to national standards. Also included is a port adaptor, to ﬁ t this probe, in the HygroCal100 chamber.

Optidew Vision

The Optidew Vision is a fundamental chilled mirror hygrometer, its high accuracy and repeatability make it the choice for applications where traceability and precision measurements are key. This kit includes port adaptors to ﬁ t both the dew-point and temperature sensors into the chamber.

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Calibration Instruments

Technical Speciﬁ cations

Chamber

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

Accuracy ±0.8% Long term stability ±1% per year

Electrical Speciﬁ cations

User interface 4.3” color LCD with touchscreen Measurement units %RH, temperature in °C, °F Displayed resolution 0.1 Data logging 2Gb internal memory available for log ﬁ les;

Battery 1500 mAh Power supply 24 V DC (100 to 240 V AC, 50/60 Hz adaptor

or 10.6yrs storage at 5s intervals

included)

Mechanical Speciﬁ cations

Probe ports 8 – sensor body diameters 5 to 25mm,

Chamber volume Approx 1050cm Maximum probe insertion

depth Desiccant reservoir

capacity Saturator reservoir

capacity Environmental conditions +5 to +40°C Dimensions 100 x 250 x 300mm (h x w x d) Weight 3.2kg

accommodated by port adaptors

60mm

25cm

25ml

Dimensions

300mm

100mm

250mm

Michell Instruments HygroCal100 Specifications

Specifications and Main Features

Frequently Asked Questions

User Manual