Models

The HygroFlex M is available in two standard versions which share the following features: • Interchangeable HygroClip S3 probe with 3 meter (9.8 ft) cable • Fully user programmable • Software based probe calibration and instrument configuration • Internal test connector for HygroPalm calibrator • 12...35 VDC / 12...24 VAC or 90...264 VAC power
HygroFlex M1 : - %RH and temperature -  Analog Outputs	HygroFlex M3:   - %RH, temperature and calculated value    (dew-point, enthalpy, etc) -  Analog & Digital Outputs
• Two linear analog outputs: 4-20 mA, 0-5V, etc. • Jumper configuration of analog outputs signal type • Analog outputs can be configured for practically any   range	• Three linear analog outputs: 4-20 mA, 0-5V, etc. • Jumper configuration of analog outputs signal type • Analog outputs can be configured for practically any range • RS232 output (optional cable grip) • Networkable - see below   RS232 first HygroFlex to PC   RS485 between transmitters • Optional input for analog pressure probe (restrictions apply)   (optional cable grip) Maximum network cable length: RS232: 150m (490ft) / RS485: 1,000m (3,300ft) between the two furthermost units

Probe

The HygroClip S3 combines advanced microprocessor and ASIC technology with a robust plug-in design to offer these unique features:

Well proven, accurate and durable sensors: Hygromer™ C94 capacitive humidity sensor Precision RTD temperature sensor Digital and analog outputs Operating range: 0...100%RH and -40...85°C/-40...185°F Up to ±1.0%RH and ±0.2°C accuracy at 25°C with special (optional) calibration Temperature compensated Low heat absorption color DC operation with low current consumption (< 4mA) Signal transmission: up to 5 m / 16 ft with direct output, up to 100m / 325ft with signal amplifier Large choice of connectors / signal adapters Long term stability < 1%RH / year Fully interchangeable: can be replaced in seconds with no loss of accuracy and no calibration

Technical Data
Humidity sensor	ROTRONIC Hygromer® C94 (capacitive)
Temperature sensor	RTD Pt100 Ohm, 1/3 DIN
Sensor protection	Wire mesh filter (standard) / foam filter (optional)
Measuring range	0...100%RH and -40...85°C ( -40...185°F)
Operating limits	same as measuring range
Accuracy at 23°C / 73°F	±1.5%RH and ±0.2°C / 0.4°F (when calibrated for HygroFlex M)
Repeatability	better than 0.5%RH and 0.1°C/°F
Analog output signals (minimum load > 10 k Ohm)	0...100%RH = 0...1V - 40...85°C = 0...1.25V (-40...60°C = 0...1V)
Digital output/input signal	1-wire, HygroClip format, 2-way communication
Analog signal resolution	0.02%RH and 0.06°C
Digital signal resolution	0.004%RH and 0.004°C
Sampling time	< 0.7 sec
Maximum cable length	5 m /15 ft for direct output up to 100m / 325 ft with signal amplifier
Connection type	bayonet cap on mounting connector (see accessories)
Protection grade	IP65 (probe to connector)
Supply Voltage	3.5...50VDC
Current Consumption	< 4mA
Minimum excitation time	< 4 sec
EMC compatibility (CE)	EN-50081-2, EN50082-2
Material	Polycarbonate, white
Dimensions	length: 100mm (3.94"), diameter: 15mm (0.59")
Weight	14 g / 0.5 oz

Probe Calibration

	For scheduled maintenance, you may to want to rotate the probes (as opposed to the complete instrument) between the measurement site and a calibration laboratory. The HygroClip product line is designed to make this easy. After removing the probe from the HygroFlex M transmitter, the following alternatives are available to calibrate the probe:
	Calibrate the probe using a HygroPalm 3 indicator Calibrate the probe using a PC on which the HW3 software has been installed (requires the MOK-03-WIN calibration cable to connect the probe to the PC).
	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. Four calibration devices are available for the HygroClip probes: ER-15 for 15mm diameter probes ER-05 for 5mm diameter probes EM-15 for type ‘IE’ probes ERV-15 for 15mm diameter probes (wall mounting)

Probe Calibration Accessories

MOK-03-WIN	Calibration cable for HygroClip
HW3	Calibration software on CD ROM
ER-15	Calibration device for HygroClip
EAXX-SCS	Certified humidity standards (5 per box) XX = 00. 05, 10, 20, 35, 50, 65, 80, 95%RH

Installation

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 HygroFlex M3 transmitters.
	Network Display Form • On-line presentation of the data in tabular form • Up to 32 transmitters • Up to 64 humidity and temperature probes • Up to 192 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 transmitter   (number of probes depends on the model and its options) • 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)

Datasheet