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HMT100 Series Humidity and Temperature
Transmitter for Demanding HVAC Applications
The Vaisala HUMICAP
®
Humidity
and Temperature Transmitter Series
HMT100 are designed for humidity
and temperature monitoring in
demanding environments.
Typical applications include stability
rooms, HVAC, livestock farms,
greenhouses, indoor swimming
pools, and outdoor applications.
Performance
HMT100 incorporates Vaisala
HUMICAP
®
technology that measures
relative humidity accurately and
reliably. Vaisala HUMICAP
®
is also
resistant to dust and most chemicals.
Available options
The HMT100 is available as a wall
mount or remote probe model with
an optional display. For high
temperature applications or where
space is limited, the remote probe is
ideal.
HMT100 remote probe and wall mount models.
HMT100 can show relative humidity
only, dewpoint only, or relative
humidity and temperature, or
dewpoint and temperature readings.
The probes are interchangeable
without having to calibrate or adjust
the transmitter.
HMT100 can also be installed
outdoors using an installation kit,
or directly into an air conditioning
channel using a duct installation kit.
Annual calibration
Calibration is recommended typically
at an interval of one year using either
the Vaisala HUMICAP
®
Hand-held
Humidity and Temperature Meter
HM70 or the Vaisala HUMICAP
®
Humidity Indicator HMI41.
The accuracy of the instrument can
also be checked using the Vaisala
Humidity Calibrator HMK15, which is
based on saturated salt solutions.
Features/Benefits
▪
Full 0 ... 100 %RH measurement
▪
Two-wire loop-powered or
three-wire voltage output
configurations
▪
Fixed and remote probe
models
▪
Display available
▪
Relative humidity, dewpoint,
temperature outputs
▪
Vaisala HUMICAP® sensor
▪
Interchangeable probe module
for minimal maintenance
downtime
▪
Dierent output scalings
▪
Compatible with hand-helds
HM70 and HMI41 for calibration
▪
IP65 (NEMA 4) housing
▪
NIST traceable (certificate
included)
Technical data
Performance
RELATIVE HUMIDITY
Measurement range 0 ... 100 %RH
Accuracy against factory standards including non-linearity,
hysteresis, and repeatability
at +15 ... +25 °C (+59 ... +77 °F) ±1.7 %RH (0 ... 90 %RH)
±2.5 %RH (90 ... 100 %RH)
at ±0 °C ... +40 °C (+32 ... +104 °F) ±(1.7 +0.015 x reading) %RH
at -40 ... ±0 °C, +40 ... +80 °C ±(2.0+0.025 x reading) %RH
(-40 ... +32 °F, +104 ... +176 °F)
Factory calibration uncertainty
at +20 °C (+68 °F)
±1.0 %RH (0 ... 15 %RH)
±1.5 %RH (>15 ... 78 %RH)
Response time (90 %) at 20 °C in
still air
8 s with plastic grid
20 s with membrane filter
40 s with sintered filter
Humidity sensor Vaisala HUMICAP
®
180
TEMPERATURE
Measurement range -40 ... +80 °C (-40 ... 176 °F)
Accuracy at +20 °C (+68 °F) ±0.2 °C (±0.36 °F)
Inputs and outputs
Two-wire output signal 4 ... 20 mA
External loop load 10 ... 35 VDC (R
L
= 0 ohms)
20 ... 35 VDC (R
L
= 500 ohms)
Voltage output signals 0 ... 1 V, 0 ... 5 V, 0 ... 10 V
(0 ... X V see order form)
Supply voltage 10 ... 35 VDC/24 VAC
Current consumption, 35 VDC/24 VAC max. 12 mA
External load R
L
min. 10 k
Mechanics
Material
Housing ABS/PC plastic
Probe chrome coated aluminum
Mounting plate GM45160 ABS plastic
Housing classification IP65 (NEMA 4)
Sensor protection
Plastic grid DRW010522
Plastic grid with membrane filter DRW010525
Sintered stainless steel filter HM46670SP
Connections screw terminals 0.5 ... 1.5 mm
2
Probe cable lengths 3 m, 5 m, 10 m
Calibration with HM70, HMI41,
or with internal 11 %RH & 75 %RH buttons
Display option
One line fixed variable or changing variables when two variables
are ordered
Options and accessories
Spare probe HMP100
Spare extension cable (10 m) DRW220095
Radiation shield DTR502B
Rain shield with installation kit 215109
Installation plate DRW010699
Duct installation kit 215619
Connection cable for HMI41 2591722
Connection cable for HM70 211339
Operating Environment
Operating temperature range
transmitter body, no display -40 ... +60 °C (-40 ... +140 °F)
transmitter body, with display -30 ... +60 °C (-22 ... +140 °F)
probe (remote probe only) -40 ... +80 °C (-40 ... +176 °F)
Storage temperature range -40 ... +60 °C (-40 ... +140 °F)
Electromagnetic
compatibility
EN61326-1,
Industrial Environment
Ref. B210472EN-B ©Vaisala 2009
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.
For more information, visit
www.vaisala.com or contact
us at sales@vaisala.com
ACCURACY OVER TEMPERATURE RANGE
Temperature sensor Pt1000 IEC 751 1/3 class B
DEWPOINT TEMPERATURE (CALCULATED)
Measuring range -20 ... +80 °C (-4 ... +176 °F)
- HUMIDITY / DEW POINT / 1
- Vaisala – at your service 3
- Building Automation 5
- Cleanrooms and Chambers 5
- Humidity 7
- 37.5 (1.48) 9
- 78.5 (3.09) 9
- 98.5 (3.88) 9
- Ø 12 (0.47) 9
- 120 (4.72) 10
- 170 (6.69) 10
- 41 (1.61) 10
- Duct installation kit 11
- Temperature Transmitters 12
- Transmitter 15
- Indoor Applications 17
- Chambers 22
- Vaisala INTERCAP 23
- Humidity and Temperature 23
- Probe HMP60 23
- Vaisala HUMICAP 24
- Probe HMP110 24
- HMI41 Indicator and 26
- HMP46 High Temperature Probe 26
- Performance 29
- Interchangeable Probe 29
- Available Options 29
- Technical Data 30
- HMK15 Humidity Calibrator 31
- DTR500 Solar Radiation and 33
- Precipitation Shields 33
- The Vaisala HUMICAP 36
- Transmitter Series HMW80 37
- HVAC Applications 39
- WITH OPTIONAL CURRENT MODULE 40
- **0 … 20 mA (R 40
- 1/8"-27 NPT 41
- Ensure dry 43
- OEM Applications 46
- Transmitter Series for Oil 51
- Moisture in Oil 51
- Prevent it 53
- Transmitter for Oil 54
- 0 ... 2 % 57
- Demanding OEM Applications 59
- GMM111 Carbon Dioxide Module 60
- Demand-controlled Ventilation 62
- GMM20W Carbon Dioxide Module 65
- GML20 and GML20T 66
- Process Measurements 67
- Humidity and 68
- Measurement 68
- Environments 68
- Hazardous Areas 69
- PTU300 Models 70
- Barometric Pressure 70
- Reliable and accurate 72
- HVAC solutions 72
- Take the lab to the field 74
- Standard PTB330TS 75
- PTB210 Digital Barometer 76
- Wind Measurement 81
- Vaisala Service Oering 82
- Vaisala Service Offering 82
- Your Warranty 83
- PRICE LIST 84
- DMT132 Dewpoint Transmitter 85
- Datasheet – front 85
- Vaisala Filters 89
- Vaisala Filters continued 89
- Order Guides 90
- Note: The Universal AC 91
- For high temperatures 92
- For high humidities 93
- For wall mounting 95
- For general use 96
- With Two Standard Chambers 101
- For Pressurized Processes 103
- DMT345 Dewpoint Transmitter 104
- DMT152 Dewpoint Transmitter 105
- DMT242 Dewpoint Transmitte 106
- For pressurized pipelines 108
- GMT221 and GMT222 CO 109
- Transmitters 109
- OMT355 Oxygen Transmitter 110
- 1 Transmitter type 111
- (-40...+140 °F) 112
- (-4...+140 °F) 112
- (+32...+140 °F) 112
- Order Guide 114
- Features/Benefits 115
- Technical data 116
- 3 Cable length 1.0 m 117
- PTB110 Barometer 118
- WXT520 Weather Transmitter 119
- Vaisala Contact Information 121
- ACCURATE 122
- For more information, visit 123
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