Rotronic Hygrolab Specifications

DATA LO GGE RS FO R HUM ID ITY A ND TE MPE RATU R E

ECONOMICAL & PRECISE.

BASED ON THE AIRCHIP3000 DIGITAL TECHNOLOGY.

IN N OVATI O N I N H U M ID I TY
AN D T E M PE R ATU R E M E AS U R EM E NT

• Highest accuracy at 0.8 %rh and 0.2 ˚C

• Outstanding long term stability

• 20000 data point memory with date & time stamps

• Programmable alarm limits

• Programmable recording intervals

• Psychrometric calculations of dew

and frost point values available

• FDA 21 CFR Part 11 / GAMP 4 compliant

• UART to USB interface

• Long battery life

SPECIFY THE BEST:

HYGROLOG HL20/21 ADVANTAGES AT A GLANCE.

The new HygroLog HL20/21 series is the latest development of data loggers for relative humidity, temperature, dew point

and frost point. These loggers give you the accuracy and reliability to measure and record your essential data whether it

be in pharmaceutical clean rooms, storage facilities, manufacturing areas, buildings, museums or any other critical area.

The HL20 and HL21 are fully compliant with FDA 21 CFR part 11 and GAMP 4 requirements for electronic records and

electronic signatures (ERES).

AirChip3000

• Temperature compensates humidity with over 30000 reference points

• Dew/frost point calculation

• Sensor auto-diagnostics and automatic correction

• Active alarming and information

• Conforms to FDA21 CFR Part 11 and GAMP4 (audit trail)

Optional display

• Display of data on a clear, backlit graphic display

• Battery charge indicator

• Display of measured and calculated data

• Function key to start and stop logging

• Display resolution to 2 decimal places

Data logging function

• HL20: Logs up to 20000 value pairs, relative humidity and temperature

• HL21: Logs up to 20000 data values, temperature

• Each record is date and time stamped (real-time clock)

• Adjustable log interval

• Two data recording modes: (start-stop or loop)

Alarm function

Visible alarm can be programmed for the HL20 or HL21 detects the following:

• Out-of-limits value (defi ned with HW4 software)

• Communication loss with the probe

• Sensor failure and sensor drift

APPLICATIONS.

Long term recording of humidity and temperature measurements is essential in many production, storage, transportation, display
and test applications as well as in buildings and museums. They provide valuable information on the levels and variation of humidity
and temperature which can have a signifi cant impact on people, materials and objects.

Relative humidity and temperature logger.

HygroLog HL20(D)

HygroLog HL20 HygroLog HL20D

Order codes:
HL-20 (without display)
HL-20D (with display)

Temperature logger.

HygroLog HL21(D)

HygroLog HL20(D)-Set

Set:

• HL20 or HL20D

• HW4 software

• Cable AC3006

Order codes:
HL-20-Set
HL-20D-Set

HygroLog HL21(D)-Set

HygroLog HL21 HygroLog HL21D

Order codes:
HL-21 (without display)
HL-21D (with display)

Set:

• HL21 or HL21D

• HW4 software

• Cable AC3006

Order codes:
HL-21-Set
HL-21D-Set

TECHNICAL INFORMATION.

ROTRONIC Instruments (UK) Ltd, Crompton Fields, Crompton Way, Crawley, West Sussex, RH10 9EE, UK, Phone [phone], Fax [phone], www.rotronic.co.uk

Data Logging.

The values stored in the HygroLog can be
displayed graphically using the HW4 software.
You can determine the storage interval, the
alarm limits, the recording mode and much
more.

HygroLog HL20

HygroLog HL20D

Dimension

130 mm 32 mm

72 mm

Device type Humidity-temperature data logger with internal sensor(s)

Battery type 3 x AA (1.5 V) alkaline

Battery life Depends on log interval and other settings.

Examples based on a 30 minutes log interval:

- Models w/o LC display: 20 months

- Models with LC display, display sleep function set to
1 minute: 13 months

Low battery indication Yes (with HW4 software or with optional display)

Measuring range 0…100 %rh / -10...60 °C

Measurement accuracy at 23 °C ±0.8 %rh / ±0.2 °C

Repeatability 0.3 %rh / 0.05 °C

Long term stability <1 %rh / year / < 0.1 °C / year

Response time Humidity: typical 3 min.

Temperature: typical 10 min. (both depend on air fl ow)

Psychrometric calculations Dew or frost point (user confi gurable setting)

Start-up time 1.9s (typical)

Data refresh rate 1.7s (typical)

Recording capacity HL20: 20000 value pairs

HL21: 20000 values

Real time clock Yes, adjustable via PC

Logging modes

Start-stop (recording stops when memory is full)
Loop: oldest data is dumped to make room for latest data

Log interval Min. 5 sec, up to1 hour in 5 sec. increments

Interface type UART (Universal Asynchronous Receiver Transmitter)

Optional display LC, 1 or 2 decimal resolution,

backlight, alarm and low battery indication

LED indicator 5 sec. green fl ash when recording data

5 sec. red fl ash for out-of-limit value or logger problem

Housing material ABS

Housing protection grade HL20: IP 40, HL21: IP65

Weight About 210 g (7.4 oz)

Solder type Lead free (RoHS directive)

FDA / GAMP directives Compatible

Operating limits -10….60 °C (models w/o display)

0….50 °C (models with display)
0…100 %rh, non condensing

Overall dimensions 130 x 72 x 32 mm (5.1 x 2.8 x 1.3”)

Subject to technical change without notice. Errors and omissions excepted.

Interested in further information? A complete and up-to-date overview of our HygroLog HL20/21 series is available
on our web site www.rotronic-humidity.com. We would also be happy to advise you on the phone.

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, Gr indel stra sse 6, CH - 8 303 Bassersd orf, Tel . [phone] , Fa x + 41 4 4 836 44 24, w ww. rot roni c.c h

ROTRONIC Instrument Corp, 135 Engineers Road, Hauppauge, NY 11788, USA , Phone, [phone], Fax, [phone], www.rotronic-usa.com

59020E/2010- 06