Vaisala HM40 Technical data
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Vaisala HUMICAP® Hand-Held Humidity and
Temperature Meter HM40
The stabilization graph clearly indicates
when the readings have stabilized.
The HM40 is easy to use, robust and provides a reliable measurement.
Features/Benefits
Humidity measurement range
▪
0 ... 100 %RH
Operating temperature range
▪
-10 °C ... +60 °C
Displays a wide range of
▪
quantities: RH, T, Td, Tw, a x, h
Graph indicates when
▪
measurement has stabilized
Compact and robust housing
▪
Large graphic display
▪
Hold-button to freeze the
▪
screen
Multilingual user interface with
▪
10 languages
Interchangeable HMP110 probe
▪
Can also be user calibrated
▪
Incorporates the proven
▪
Vaisala HUMICAP® 180R Sensor
Vaisala HUMICAP® Hand-Held
Humidity and Temperature Meter
HM40 is compact, robust and
affordable. It is an ideal spotchecking tool that is easy to use and
provides a reliable measurement.
It can be used for various portable
measurement applications.
Simple and easy to use
The HM40 includes a user-friendly,
large graphic display and easy-to-use
push buttons. The multilingual user
interface with 10 different languages,
is simple and intuitive to use.
Also many other settings can be
modied by the user to best suit his
individual needs.
In addition to relative humidity and
temperature, the HM40 provides
5 calculated humidity quantities,
all available in both metric and nonmetric units.
The meter is powered by 2 AA-sized
batteries. An external NiMH battery
recharger with USB connection and
rechargeable NiMH batteries are
offfered as an option. Each HM40
comes also with a handy belt clip.
Easy recalibration
The calibration of the HM40 is easy:
just send the meter back to a Vaisala
Service Center for recalibration
or simply plug in a freshly
calibrated interchangeable HMP110
measurement probe. Alternatively,
the HM40 can be user-calibrated
on site using a humidity reference,
e.g. the Vaisala Humidity Calibrator
HMK15.
Technical data
Performance
RELATIVE HUMIDITY
Measurement range 0 ... 100 %RH
Accuracy (including non-linearity, hysteresis,
and repeatability):
at 0 ... + 40 °C (32 ... 104 °F) ± 1.7 %RH (0 ... 90 %RH)
± 2.5 %RH (90 ... 100%RH)
at -10...0 °C and +40 ... +60 °C
(14 ... 32 °F and 104 ... 140 °F) ± 3.0 %RH (0...90 %RH)
± 4.0 %RH (90 ... 100 %RH)
Factory calibration uncertainty at +20 °C (68 °F) ± 1.5 %RH
Humidity measurement response time
(90%) with plastic grid filter 17 s
Stability ± 2 %RH over 2 years
®
Humidity sensor HUMICAP
TEMPERATURE
180R
Measurement range -10 ... +60 °C (14 ... 140 °F)
Accuracy over temperature range:
at 0 ... +40 °C (32 ... 104 °F) ± 0.2 °C (0.36 °F)
at -10 ... 0 °C and +40 ... +60 °C
(14 ... 32 °F and 104 ... 140°F) ± 0.4 °C (0.72 °F)
Temperature sensor Pt1000 RTD 1/3 Class B IEC 751
Mechanics
Dimensions (H x W x D) 230 x 72 x 44 mm
Weight
With batteries 240 g
Without batteries 190 g
Materials
Meter body PC/ABS blend, acrylic display lens
Probe holder aluminum
Probe chrome coated aluminum
Filter chrome coated ABS plastic
Housing classification
for indicator IP54
for HMP110 probe IP65
Mechanical drop endurance 0.5 m with probe attached
1.0 m without the probe
General
Power-up time < 3 s
Batteries 2 x AA sized, 1.5V
Calculated variables Td, Tw, a, x, h
Menu languages English, German, French, Finnish,
Spanish, Swedish, Chinese (simplified),
Russian, Japanese, Portuguese
Display LCD (140 x 160 pixels)
Operation time typical 100 hours (without backlight)
Operation temperature range -10 ... +60 °C (14 ... 140 °F)
Storage temperature range
for indicator and probe -30 ... +70 °C (-22 ... 158 °F)
Electromagnetic compatibility European Union directive
(EMC) EN61326-1 for portable equipment
Accessories and spare parts
HMP110 probe for HM40*
HMP110R replacement probe for HM40*
External battery recharger with USB connection
and 2 batteries 229249SP
NiMH rechargeable batteries (4 pcs) 229247SP
Plastic grid for HMP110 probe DRW010522SP
Plastic grid with membrane filter for HMP110 probe DRW010525
Belt clip (3 pcs) 227710SP
Battery cover (3 pcs) 225688SP
*See separate order form 'HMP110 probes for HM40'
Dimensions
Dimensions in mm
72
12
230
For more information, visit
www.vaisala.com or contact
us at sales@vaisala.com
155
44
Ref. B211064EN-A ©Vaisala 2010
This material is subject to copyright protection, with all
copyrights retained by Vaisala and its individual partners. All
rights reserved. Any logos and/or product names are trademarks
of Vaisala or its individual partners. The reproduction, transfer,
distribution or storage of information contained in this brochure
in any form without the prior written consent of Vaisala is strictly
prohibited. All specifications — technical included — are subject
to change without notice.
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