HMI41 Indicator and HMP46 High Temperature Probe

HMI41 Indicator and HMP46 High Temperature Probe
P.O. Box 26, FIN-00421 Helsinki, FINLAND
Tel: +358 9 894 91
Fax: +358 9 8949 2485
Email: [email protected]
www.vaisala.com
HMI41 Indicator and
HMP46 High Temperature Probe
Features/Benefits
• RH measurement range 0...100 %RH
• ± 1% accuracy
• Temperature measurement range
-40...+100 °C, for short periods
up to +180 °C
• Calculates dewpoint, wet bulb
temperature, absolute humidity and
mixing ratio
• Versatile and easy-to-use
• Incorporates Vaisala’s HUMICAP®
Sensor
• Excellent stability
• Data collection with serial line
download capability
• NIST traceable (certificate included)
The HMI41 Indicator equipped
with the HMI46 Probe is an ideal
combination for spot checking
and field calibration.
The HMI41 Hand-Held Indicator fitted
with HMP46 Humidity and
Temperature Probe can be used for
spot checking humidity and
temperature in ducts or chambers.
Typical applications are plant
maintenance, installation and
inspection of air conditioning systems,
production and storage areas and
production processes. In addition, it
is suitable for field checking Vaisala's
humidity transmitters.
Withstands high
temperatures
HMP46 operates in full humidity
range of 0...100 %RH. The
temperature range is from -40 to
+100 °C. For short periods of time,
the probe can withstand temperatures
up to +180 °C. The HMP46 probe is
solid and rugged. Its stainless steel
probe head is made to withstand
rough handling in mechanically
demanding applications. The probe’s
long shaft can also reach otherwise
unreachable places.
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Versatile and easy to use
In addition to displaying the humidity
and temperature readings, the HMI41
Indicator calculates dewpoint and wet
bulb temperature, absolute humidity
and mixing ratio.
The indicator has an easy-to-read two
line liquid crystal display. The display
units (metric or non-metric) are easily
selected.
These features, plus fast response
time, high measurement accuracy and
excellent stability, as well as the wide
temperature range of the probe, make
the HMI41/HMP46 combination an
ideal choice for the most demanding
applications.
High performance sensor
The HMP46 Probe incorporates
Vaisala’s HUMICAP® Sensor. This sensor
has high accuracy, excellent long-term
stability and negligible hysteresis. In
addition, the sensor is insensitive to
dust, particulate dirt and most chemicals.
VAISALA HMI41&HMP46
HUMIDITY
Technical Data
HMI41 Indicator
Calculated variables
dewpoint temperature,
absolute humidity, wet bulb
temperature, mixing ratio
0.1 %RH; 0.1 °C
4 batteries, type AA (LR 6)
Resolution
Power supply
Battery operation time
(alkaline batteries)
72 h continuous use
Auto-off function
Operating temperature
-20...+60 °C
Storage temperature
-40...+70 °C
Display
two line LCD
Housing material
ABS plastic
Housing classification
IP53 (with connectors blocked)
Weight (incl. batteries)
300 g
carrying case for HMI41 & HMP46
part no. 210614
serial communication cable
part no. 19446ZZ
Maximum measurement error of indicator at +20 °C
humidity
±0.1 %RH
temperature
±0.1 °C
HMP46 Probe
General
Typical ranges of calculated variables
dewpoint temperature
-40...+100 °C
absolute humidity
0...600 g/m3
wet bulb temperature
0...100 °C
mixing ratio
0...600 g/kg d.a.
Cable length
1500 mm; extended spiral cable
Operating temperature range
for electronics
-20...+60 °C
Housing material
Electronics housing
ABS plastic
Probe head
stainless steel
Housing classification
electronics
IP65
Sensor protection
sintered filter, part no. 0195
option
membrane filter, part no. 10159HM
plastic grid, part no. 6221
Weight
450 g
Complies with EMC standard EN61326-1:1997 + Am1:1998;
Industrial Environment.
Accessories
Humidity
Measurement range
0...100 %RH
non-condensing
Maximum achievable accuracy when calibrated
against high quality, certified humidity standards
0…90 %RH
90…100 %RH
when calibrated against salt solutions (ASTM E104-85)
0…90 %RH
90…100 %RH
Temperature Dependence
±1 %RH
±2 %RH
±2 %RH
±3 %RH
Transmitter calibration cables
Cable Part #
for Calibrating
19116ZZ
HM60/70’s, HMP40’s, HMM22D, HMW61/71
19164ZZ
HMP230’s, HMM210
19165ZZ
HM20/30’s, HMP130’s, HMM30C
25917ZZ
HMT320’s for use in ‘safe’ zones
PC cable
19446ZZ
Dimensions
Dimensions in mm.
error %RH
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
-40
HMI41
-20
0
20
40
60
80
T/˚C
100
120
140 160
HMP46
180
Typical long-term stability
better than 1 %RH per year
Response time (90%)
at +20°C in still air w/sintered filter
15 s
Humidity sensor
HUMICAP® 180
Temperature
Continuous measurement
Short-term measurement
Accuracy at +20 °C
Accuracy over the measurement range
Temperature sensor
-40…+100 °C
-40…+180 °C
±0.2 °C
Pt 100 IEC 751 1/3 class B
HUMICAP® is a registered trademark of Vaisala.
Specifications subject to change without prior notice.
© Vaisala Oyj
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