HygroLab Multi-Channel Humidity/Temperature And Water Activity Indicator

Models | Probes | Software | Calibration

Multiple Probe Inputs

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• Developed for busy laboratory environments where multiple measurement stations or probes co-exist, the HygroLab 2 features networking, allowing up to 32 instruments to be simultaneously controlled and monitored from a single PC.

• Based on the very latest digital technology, HygroLab offers the user outstanding performance and flexibility, with up to four simultaneous probe inputs and an impressive number of functions.

• Probes can be interchanged without loss of accuracy. The HygroLab features a full range of psychrometric calculations, software based measurement analysis and multi-point calibration.

• An extensive range of probes and water activity measuring stations make the HygroLab suitable for almost any laboratory or production application.

• HygroLab is the new series of bench top indicators for the measurement of humidity and water activity (aw).

Models

		HygroLab 1 Key Features • Two digital or analogue probes • One point digital probe calibration
		HygroLab 2 Key Features • Four digital or analogue probes • Single or multi-point digital probe calibration • Full psychrometric calculation functions • Networkable: RS232/RS485 output

Probes

	HygroClip S for measurement in air, max. 85慢 (185慚), wire mesh filter 100mm (3.9") x 15mm (0.6")
	HygroClip SP05 for measurement in air ducts, max. 85慢 (185慚) tube: 200mm (7.9") x 5mm (0.2") cable: 2m (6.5ft)
	HygroClip SC05 for measurement in tight spaces, max. 100慢 (212慚) diameter: 5mm (0.2"), cable: 2m (6.5ft)
	HygroClip HK25 / HK40 air probe for measurement at high temperature HK25: max. 100慢 (212慚) / HK40: max. 200慢 (392慚) wire mesh filter tube:HK25: 250 (9.8") / HK40: 400mm (15.7") x 15mm (0.6") cable: 2m (6.5ft)
	HygroClip HP28 insertion probe for measurement of materials in bulk, max. 85慢 (185慚) sintered steel filter tube: 280 (11") x 10mm (0.4") cable: 2m (6.5ft)
	HygroClip HS28 sword probe for measurement of paper stacks/rolls, max. 85慢 (185慚) blade: 280 (11") x 18mm (0.7") x 4mm (0.16") cable: 2m (6.5ft)

To connect the above probes to the HygroLab, use cable MOK-01-B5

		AwVC-DIO water activity station with ventilation for rapid equilibrium
		WP-40TH sample holder with integrated water jacket for temperature control and PS-40/PS-14 sample cups
		WP-40/WP-14 sample holder shown with PS-14/PS-40 disposable sample cups

Software

HW3 is a software package designed for the HygroClip product line. HW3 features data acquisition, recording, graphing and alarm functions, calculation of various humidity parameters (both on-line and off-line) as well as instrument configuration and probe calibration. HW3 also offers a comprehensive solution for the networking of up to 32 HygroLab 2 indicators and transmitters.
	Network Display Form • On-line presentation of the data in tabular form • Up to 32 instruments • Up to 128 humidity and temperature probes • Up to 384 measured and calculated values • Live graph of up to 8 measured or calculated values with or without data logging
	Data-logging • Log interval adjustable from a few seconds to several hours • Up to 32 instruments can be simultaneously recorded • Individual log file per instrument or all instruments on the network in a single log file (requires Microsoft's Excel) • Size of log file can be limited based on the number of samples or a new file can be automatically started each hour, day or month • Display or print-out of the data in tabular format • File data can be transferred to HW3 graphic module or to Microsoft's Excel
	Alarm function • Monitors relative humidity and / or temperature � Can be set for individually for each instrument and probe on the network • Acoustic and or visual signal directly on PC • Remote alarm by email (requires Microsoft's Outlook)
	Graphs • On-line (live graph) or off-line (based on a log file) • Can display calculated values: dew-point, mixing, ratio etc. • Up to 16 traces simultaneously
	Instrument Display Form • On-line presentation of the data for a single instrument (up to 4 probes per instrument) • Selection of the calculated parameter • Access to data logging, graph and alarm functions • Access to instrument configuration and probe calibration
	Probe Calibration (HygroClip probes) • Humidity: up to 4 points, Temperature: 2 points • 1-point adjustment function (offset) • Automatic temperature correction of the ROTRONIC humidity standards • Certificate can be generated
System Requirements PC	Pentium 233 MHz or better
Windows	95, 98, Me or NT, 2000
Memory	32 MB or better
Disk Space	20 MB
Monitor	VGA or Super VGA
Resolution	1024 x 768 recommended (800 x 600 minimum) High Color 16 Bit or better (256 color minimum)
Connection	RS232 (COM 1 - 4)
Software	HW3 (includes Browser, Adobe Acrobat Reader)

Calibration

The digital HygroClip probes can be calibrated and adjusted at one or more points with the HygroPalm 2 or HygroPalm 3 indicator:

• For a quick check of the probe and eventual 1-point adjustment of humidity and temperature, you can plug a freshly calibrated probe into any free probe input and adjust against this probe.

• For scheduled maintenance, you can adjust temperature at up to 2 points and humidity at up to 4 point against physical references.

Note: the HygroPalm 1 is limited to a 1-point adjustment of the probe. The HygroPalm 2 and 3 permit full calibration of the probe.

You may also make use of the full interchangeability of the HygroClip digital probes and rotate the probes with a calibration laboratory. The calibration laboratory can do any of the following:

Use a spare HygroPalm 2 or HygroPalm 3 to directly calibrate and adjust the probe

Connect the probe to an MOK-03-WIN cable and adjust the probe using a PC
on which the HW3 software has been installed.

HW3 Software:software based probe calibration is both simple and precise: there are no hard-to-reach, hard-to-adjust potentiometers. HW3 offers a high level of flexibility in selecting the calibration reference, giving the user complete control over the calibration process. HW3 features the following calibration modes:

� Humidity: 2, 3 or 4 points
� Temperature: 2 points
� 1-point adjustment function (offset) for both humidity and temperature

When humidity calibration is done using the Rotronic humidity standards, HW3 automatically corrects the value of the standard to reflect the temperature of calibration (see note). HW3 also offers the possibility of printing a certificate of calibration.

Note: the value of the standards does not depend on barometric pressure (altitude).

Certified Humidity Standards:if you do not have access to a humidity generator, the Rotronic humidity standards offer a reliable and convenient way to generate a reference humidity condition during probe calibration. The Rotronic standards are shipped with an internationally accepted certificate, meeting in full the requirements of quality systems such as ISO 9000. The standards are available in boxes of 5 glass ampoules of the same value, and can be stored indefinitely. Standards in the range of 5 to 95 %RH are non-saturated aqueous salt solutions. The 0 %RH humidity standard is made of small granules of a highly porous ceramic. A Material Safety Data Sheet is available for each standard.

Calibration Devices:a calibration device is a small airtight container that fits on the probe and seals around the humidity sensor. During calibration, a known reference humidity is produced inside the calibration device by means of a humidity standard.