vaisala, inc. hm70d0d1a0cb

vaisala, inc. hm70d0d1a0cb
HM70 Hand-Held Humidity and Temperature
Meter for Spot-Checking Applications
Features/Benefits
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The Vaisala HUMICAP® Hand-Held Humidity and Temperature Meter HM70 is a highperformance, portable humidity reference that is exciting to use.
The Vaisala HUMICAP® Hand-Held
Humidity and Temperature Meter
HM70 is a user-friendly meter for
demanding spot-checking humidity
measurements. It is ideal for field
checking and calibration of Vaisala's
fixed humidity instruments such as the
Vaisala HUMICAP® Humidity and
Temperature Transmitter Series
HMP230.
Three probes to choose from
The HMP75 is a general purpose probe
for humidity measurements between
-20 and +60 °C. The HMP76 is a long,
stainless steel probe for humidity
measurements between -50 and +120
°C. It is especially suitable for spotchecking in ducts. The HMP77 probe
has a small sensor head at the end of a
5-meter cable. The probe is ideal for
difficult-to-reach areas and for on-site
calibration of Vaisala's process
transmitters. The measurement range
is for temperatures up to +180 °C.
One or two probes can be connected
simultanelusly. In addition, the HM70
supports the use of Vaisala's dewpoint
and carbon dioxide probes, allowing
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measurements in multiparameter
applications such as greenhouse
monitoring and health inspection.
Easy-to-use user interface and
three-variable display
The HM70 features a multilingual,
menu-based user interface, and a clear
graphical LCD display. Overall three
measurement parameters can be
displayed and logged into the meter's
memory at the same time. An analog
output option is also available.
®
Proven HUMICAP technology
The HM70 incorporates Vaisala
HUMICAP® Sensor, which provides
reliable and high performance
humidity measurement with excellent
long-term stability.
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Accurate, traceable and stable
Multilingual user interface
Shows measurement trends
graphically
Proven Vaisala HUMICAP® Sensor
technology
3 probes, temperature measurement
ranges between -70 and +180 °C
Multiprobe operation; dewpoint and
CO2 probes can also be connected
Displays various humidity
parameters
Sensor preheat and chemical purge
options for demanding conditions
Data can be logged, and transferred
to a PC via MI70 Link software
Rugged and reliable - even in
extreme conditions
NIST traceable (certificate included)
sensor dry when the probe is inserted
into hot and humid processes.
Calibration
The meter is calibrated at the factory
against traceable standards, and
delivered with a calibration certificate.
The HM70 probes can also be sent to a
Vaisala Service Center for a traceable
recalibration.
MI70 Link
The optional MI70 Link Windows®
software is a practical tool for transferring logged data and real time measurement data from the HM70 to a PC.
Options improve
performance in demanding
applications
The chemical purge option maintains
measurement accuracy in environments
with high concentrations of chemicals.
The sensor preheat option reduces
measurement delays by keeping the
The graphic display shows the stabilization
of measurements and process trends.
Vaisala Product Catalog 2003-2004
Ref. B210379en rev. A
HUMIDITY
HM70
Technical Data
HMP75, HMP76 and HMP77 probes
Measured variables
Relative humidity
Measurement range
0..100 %RH
Accuracy, over temperature range
-40...+180 °C (-40...+356 °F)
(including nonlinearity, hysteresis and repeatability)
Maximum achievable accuracy when calibrated against high
quality,
certified humidity standards:
0..90 %RH
±1 %RH
90...100 %RH
±2 %RH
When calibrated against salt solutions (ASTM E104-85)
0..90 %RH
±2 %RH
90...100 %RH
±3 %RH
Response time (90%) at +20 °C (+68 °F) still air
HMP75 (with standard Plastic grid)
8s
HMP76 (with standard Sintered bronze filter)
40 s
HMP77 (with standard Plastic grid with stainless steel netting)20 s
Sensor
HUMICAP® 180
Typical long-term stability
better than 1 %RH / year
Temperature
Measurement range
HMP75
-20...+60 °C (-4...+140 °F)
HMP76
-50...+120 °C (-58...+248 F)
short time
-50...+180 °C (-58...+356 °F)
HMP77
-70...+180 °C (-94...+356 °F)
Accuracy at +20 °C (+68 °F)
±0.2 °C (0.36 °F)
Temperature sensor
Pt100 IEC751 1/3 class B
Calculated variables (typical ranges)
Dewpoint temperature
Mixing ratio
Absolute humidity
Wet bulb temperature
Enthalpy
Water vapor pressure
-20...+100 °C (-4...+212 °F)
0...600 g/kg dry air
0...600 g/m3
0...100 °C (+32...+212 °F)
0...160 kJ/g
0...1000 hPa
The accuracies of these calculated variables are limited by the
accuracies of the measured variables on which they are based, namely
RH and T. The RH and T accuracies are stated above under Measured
Variables.
Probe general
-40...+60 °C
(-40...+140 °F)
Housing classification
IP65 (NEMA 4)
Housing material
ABS/PC blend
Probe material
Stainless steel (AISI316L)
Cable length between probe and indicator
1.9 m
Weight
HMP75
250 g
HMP76
350 g
HMP77
500 g
Analog output
Output resolution
Data interface
Data logging capacity
Alarm
Operating temperature range
Operating humidity range
Housing classification
Weight
Battery operation time
Continuous use
Datalogging use
0...1 VDC
0.6 mV
RS-232
2700 points
audible alarm function
-10...+40 °C (+14...+104 °F)
non-condensing
IP54
400 g
48 h typical at +20 °C (+68 F)
up to 30 days
MI70 indicator + probe = HM70
Accessories
Carrying cases
for MI70 and HMP75/77 probe
for MI70 and HMP75/76 probe
Transmitter connection cables for
HMP230 Series
HMT300 Series
HM60/70/140 Series
HM20/30/130 Series
Analog output cable
Windows® software, includes PC connection cable
Sensor protection
HMP75
Plastic PC grid (HMP75 standard)
Membrane filter
Sintered bronze filter
HMP76/77
Plastic PPS grid
Sintered stainless steel filter
Sintered bronze filter (HMP76 standard)
PPS grid with SS netting (HMP77 standard)
MI70CASE
MI70CASE2
27159ZZ
211339
HMA6070
HMA2030
27168ZZ
MI70LINK
6221
10159HM
DRW212987SP
DRW010276SP
HM47280SP
DRW212987SP
DRW010281SP
Electromagnetic compatibility
Complies with EMC standard EN61326-1:1997 + Am1:1998, Industrial
Environment.
Dimensions
Dimensions in mm (inches)
HMP76
Operating temperature range for electronics
HMP77
HMP75
MI70 measurement indicator
Indicator general
Menu languages English, French, Spanish, German, Swedish, Finnish
Display
LCD with backlight, graphic trend display of
any parameter, character height up to 16 mm
Probe inputs
1 or 2
Power supply
Rechargeable NiMH battery pack with AC-POWER
or 4xAA-size alkalines, type IEC LR6
Vaisala Product Catalog 2003-2004
Ref. B210379en rev. A
HUMICAP® is a registered trademark of Vaisala.
Specifications subject to change without prior notice.
© Vaisala Oyj
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