
D AT A L O G G E R F O R H U M I D I T Y A N D T E M P E R AT U R E
T H E I N T E L L I G E N T
D ATA L O G G E R .
INT R O DU C I NG A IRC H I P D I GI TA L T E C HNO L O GY.
IN N O V AT I O N I N H U M I D I T Y
AN D T E M P E R AT U R E M E A S U RE M E N T
• FDA CFR 21 Part 11 / GAMP 4 compliance
• Outstanding accuracy and long-term stability
• Unlimited memory with Flash Card
• Display of measured values
• Interchangeable sensors for humidity and temperature
• Large range of probes
• User-friendly, validated HW4 software

SP EC IFY T HE BE ST:
HY GR OL O G AD VA NTA G ES AT A G LA NC E.
The HygroLog NT series is the latest development in data loggers for relative humidity, temperature and dew point.
Thanks to the precision of the new AirChip3000 technology on which they are based, the instruments achieve a
degree of accuracy not seen before .
The new HygroLog NT series not only fulfi ls all FDA and GAMP requirements, but also supports users in validation.
With a storage capacity of more than 47,000 data points, the loggers have a virtually unlimited memory. Measurement
losses are ruled out by the digital communication interface between the HygroClip2 probe and the loggers.
Flexible choice of probe
• Can use all HygroClip2-compatible probes
• HygroLog HL-NT3 with possibility to connect
two additional external probes
• Probes changed in just seconds
Functional display
• Display of data on a clear, backlit graphic display
with trend indicator
• Optional display and keyboard for measurement
display, status display, operation, adjustment and
view of logged data
FDA CFR 21 Part 11 and GAMP4 compliance
• Recording of all events such as battery changes, user
actions and memory-card changes
Optional docking station
• Can be used as lockable mechanical holder
• Possible to connect four additional probes
• Monitoring of the digital switch inputs
AirChip3000
• Compensates humidity and temperature
over 30,000 reference points
• 2,000 data point memory
• Dew/frost point calculation
• Sensor auto-diagnostics and automatic correction
• Active alarming and information
• ASIC (Application Specifi c Integrated Circuit),
micro-controller and EEPROM on one chip

AP PL IC AT IO NS .
The data loggers in the HL-NT series are ideal for all application where data and events need to be tracked precisely (GAMP or FDA), e.g.
the food and pharmaceutical industries, printing and paper industries, meteorology, agricultural sector, archaeology, climatology, etc.
There is hardly a fi eld today in which these parameters may be ignored.
HygroLog HL-NT2
Logger for interchangeable probe
HygroLog HL-NT3
Logger for interchangeable probe
as well as two external sensors
Range of different docking stations
Please fi nd the product overview at
www.rotronic-humidity.com
PR OB ES FO R H YG RO LO G HL - NT.
Whether you need a simple climate probe for measuring ambient conditions or a more sophisticated cable probe for high temperature and other special applications, we can provide you with the ideal HygroClip2 probe to suit your requirements. All HygroClip2
probes can be individually calibrated and adjusted to increase measurement precision where you need it the most. This capability
is what makes every probe in the product range a high-end solution for your application.
Standard Climate Probes
Probes with maximum accuracy, for all climatic measurements, operating range -50...100 C°, 0...100 %rh
High Temperature Probes
Hand-held probes for applications to 200 °C
Probe length 250 and 400 mm Ø15 mm
An up-to-date overview of our extensive range of accessories such as cables, fi lters, sets, software and calibration equipment as
well as further information on the HygroLog is available on our web site www.rotronic-humidity.com.
Miniature Probes
4 and 5 mm probes for measurements in confi ned spaces
such as packaging etc. and for building material tests
Industrial probe
For fi xed mounting
Operating range 0...100 %rh,-100...200 °C / 0...400 bar

TE CH NIC AL IN FO RMAT IO N.
ROTRONIC Instruments (UK) Ltd, Crompton Fields, Crompton Way, Crawley, West Sussex, RH10 9EE, UK, Phone +44 (0)1293 571000, Fax +44 (0)1293 571008, www.rotronic.co.uk
Data logging.
Keep track of the past. The stored values can
be displayed graphically with the optional HW4
software. You can defi ne the saving intervals,
alarm limits, type of alarm and much more yourself, meaning the HygroLog can be integrated in
any application you like.
Adjustment.
There are three different adjustment profi les for
measurement accuracy available as options.
With the top version the instrument is adjusted
at 20 humidity values and three different temperatures. A further advantage of this version:
the data are stored on the AirChip and can
therefore be used for audits.
Sensor Diagnostics.
The intelligence of AirChip3000 technology
enables advanced sensor diagnostics. Should
the sensors deviate from factory defi ned
parameters, the measured values are compensated electronically. You can select whether the
values are to be compensated and whether an
alarm is to be given.
HygroLog HL-NT
Logger HygroLog HL-NT2 HygroLog HL-NT3
Humidity / Temperature sensor ROTRONIC HygroClip2 series
Probe inputs in the HygroLog 1 3
Probe inputs in the docking station 4
Electronics operating range
Humidity 0…100 %rh
Temperature -30…70 °C, with display -10…60 °C
Operating range
With alkaline battery: -10…50 °C (standard battery)
With lithium battery: -30…70 °C
Measurement range Depends on probe, max. -100…200 °C
Accuracy at 23°C
with integrated HC2-S standard probe
Probes HygroClip2 & Pt100 probes (docking station)
Data saving interval 5 seconds to 24 hours
Memory mode Start/Stop/Continuous/Text with timestamp
Alarm indicators Visual indicators (LED, two-coloured) and beeper
Logger dimensions 156 x 109 x 42 mm
Housing material ABS
Probe protection Protective cap and probe-specifi c fi lter
Power supply (recommended) 9 V battery ≥ 500 mAh or externally via docking station
Battery life > 1 year (with 1 HygroClip2 probe, 15 min. data saving interval, without display)
Display (optional) LCD full graphic display
Logger weight Approx. 300 g
Data storage
Storage medium 32 MB Flash Card (up to 1 GB possible)
Storage capacity in text mode With 32 MB Flash Card 800.000 data points
Storage capacity in protected mode With 32 MB Flash Card 1.504.000 data points
Functions
Event logging All user actions, alarms, programming
Audit trail Full FDA CFR 21 Part 11 / GAMP4 compliance
Adjustment Probe adjustment in instrument possible
Access to instrument (PC) Via docking station
Docking stations
Connections AC adapter, RS232, RS485, USB via docking station (depending on model)
IP protection / Anti-theft device IP65 / Integrated in docking station
Abmessungen und Gewicht 113 x 70 x 39 mm, ca. 175 g / NT-Desk 145 x 140 x 125 mm, ca. 350 g
System requirements HW4
(minimum requirements)
Software Standard: HW4-E / Professional: HW4-P
Max. ±1.5 %rh / 0.2 K with SCS certifi cate
Processor Pentium 1 GHz
RAM 512 MB
Monitor SVGA, 1027 x 768, 256 colours, 96 DPI
Harddisk HW4: 50 MB/ NET2: 280 MB
Operating system Windows XP Service Pack 2, Windows 2000 Service
Pack 3, Windows Server 2003, Windows Vista
Docking stations
Change over now to the HygroClip2 probes with integrated AirChip3000 technology for your
temperature and humidity measurements. You can find detailed information about our probes
at www.rotronic-humidity.com. We would also be happy to advise you in person or on the phone.
ROT RON IC AG, G rindel stras se 6, CH - 8303 Bass e rsdorf, Te l. +41 44 838 11 11, F ax +41 44 836 44 2 4, www. rotronic .ch
ROTRONIC Instrument Corp, 135 Engineers Road, Hauppauge, NY 11788, USA , Phone, +1 631 427-3898, Fax, +1 631 427-3902, www.rotronic-usa.com
59010 E