www.vaisala.com
HMP50 Miniature Humidity and Temperature
Probe for OEM Applications
The HMP50 features good measurement performance in a small, rugged and
simple probe.
Features/Benefits
Miniature-size humidity
▪
transmitter
Very low power consumption
▪
- well suitable for batterypowered applications
Short power-up time
▪
Measurement range
▪
0 ... 98 % RH and
-10 ... +60 °C (+14 ... +140 °F)
Cable detachable with
▪
standard M8 quick connector
Rugged metal housing
▪
Interchangeable Vaisala
▪
INTERCAP® Sensor - no need
for recalibration
Optional outputs and cable
▪
lengths
The Vaisala INTERCAP® Humidity
and Temperature Probe HMP50 is a
simple and cost effective humidity
transmitter suitable for volume
applications or integration into other
manufacturers' equipment.
The HMP50 is ideal for a variety of
applications such as glove boxes,
greenhouses, fermentation chambers,
data loggers, and incubators.
Installation flexibility
The probe cable has a screw-on quick
connector for easy installation. Two
different cable lengths are available,
and customers can also use any
M8 series cable of their choice.
Several outputs available
The temperature measurement is
optional. Three standard voltage
outputs are available.
For the RH- only model, a current
interface output is available. It can
be used to build a 4 ... 20 mA looppowered current output with external
components (the optional current
converter kit).
Rugged design
The aluminum body of the HMP50
is IP65-classied. The sensor is
protected by a membrane lter and
plastic grid, or optionally a stainless
steel lter.
Technical data
Performance
RELATIVE HUMIDITY
Measurement range 0 ... 98 %RH
Typical accuracy at +20 °C (+68 °F)
0 ... 90 %RH ±3 %RH
90 ... 98 %RH ±5 %RH
Stability ±2 %RH over 2 years
Temperature dependence
TEMPERATURE (OPTIONAL)
Measurement range -10 ... +60 °C (+14 ... +140 °F)
Typical accuracy at +20 °C ±0.6 °C (±1.1 °F)
Temperature dependence
Inputs and outputs
Operating voltage 7 ... 28VDC
for 0 ... 5 VDC output model 8 ... 28 VDC
Current consumption 2 mA typical
Settling time at power-up 150 ms
Outputs (equals 0 ... 100% RH and
-40 ... +60 °C) 0 ... 1/2.5/5VDC
Current interface
External loads
0 ... 1/0 ... 2.5V RLmin 10kohm
0 ... 5 RLmin 50kohm
Cable colors.
1 brown +VDC 7... 28 VDC
2 white +0... 1/2.5/5 V 0... 100 %
3 blue -VDC
4 black 0... 1/2.5/5 V -40... +60 °C
Mechanics
Body material chrome coated aluminium
Grid/filter material chrome coated ABS plastic
Cable material polyurethane
Housing classification IP65
Body thread M12x1 / 10 mm
Grid thread M11x1 / 5 mm
Cable connector 4-pin M8 (IEC 60947-5-2)
Cable lengths 0.3 and 3 m
Weight 25 g (with 0.3 m cable)
Operating environment
Environmental temperature
operating -10 ... +60°C (+14 ... +140 °F)
storage -40 ... +60°C (-40 ... +140 °F)
Environmental operating RH 0 ... 100%RH
Electromagnetic compatibility Complies with EMC standard
EN61326-1, Generic Environment
For more information, visit
www.vaisala.com or contact
us at sales@vaisala.com
Options and accessories
Vaisala INTERCAP® sensor 15778HM
Vaisala INTERCAP
Sensor protection
plastic grid DRW010522
membrane filter DRW010525
stainless steel sintered filter HM46670SP
Current output converter kit 26182HM
Plastic M12 installation nuts, pair 18350SP
Connection cable M8
0.3 m HMP50Z032
3 m HMP50Z300
®
sensor with membrane 15872HM
Ref. B210449EN-B ©Vaisala 2009
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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.