HMT330 Series Humidity and Temperature

HMT330 Series Humidity and Temperature
HMT330 Series Humidity and Temperature
Transmitters for demanding humidity measurement
The HMT330 transmitter family has the solution for demanding industrial humidity
measurements.
Features/Benefits
▪
Six models for demanding
industrial applications
▪
Full 0 ... 100 % RH
measurement, temperature
range up to +180 °C (+356 °F)
(depending on model)
▪
Pressure tolerance up to
100 bar (depending on model)
▪
Next generation Vaisala
HUMICAP® Sensor for excellent
accuracy and stability
▪
Graphical display of
measurement trends and over
four-year history
▪
▪
Multilingual user interface
▪
Corrosion resistant IP65
housing
▪
NIST traceable (certificate
included)
▪
Analog outputs, WLAN/LAN
Excellent performance in harsh
chemical concentrations
The Vaisala HUMICAP® Humidity
and Temperature Transmitter
Series HMT330 is designed for
demanding industrial applications
where stable measurement and wide
customization is important.
Vaisala HUMICAP ®
performance
The HMT330 series incorporates
Vaisala’s 30 years of experience in
industrial humidity measurement.
An updated, even more stable and
chemical resistant HUMICAP® sensor
is available, next to the proven
reliable and accurate sensor.
Chemical purge minimizes
effects of contaminants
In environments with high
concentrations of chemicals and
cleaning agents, chemical purge
helps to maintain measurement
accuracy between calibration
intervals.
Chemical purge involves heating the
sensor to remove harmful chemicals.
The function can be initiated
manually or programmed to occur at
set intervals.
Graphical display of
history and measurement
trends
The HMT330 can be ordered with
a large numerical and graphical
display, which allows the user to
clearly monitor operational data,
measurement trends and 1-year
measurement history. The optional
data logger with real-time clock
makes it possible to generate over
four years of measured history, and
zoom in on any desired time or time
frame. The battery backup of the
clock guarantees a reliable logging of
measured data.
The display alarm allows tracking
of any measured parameter, with a
freely configurable low and high limit.
Data collection and
(wireless) transfer to PC
The recorded measurement data
can be viewed on the display or
transferred to a PC with Microsoft
Windows® software. The transmitter
can also be connected to a network
with an optional (W)LAN interface,
which enables a (wireless) Ethernet
connection. A USB-RJ45 cable makes
it easy to connect the service port of
the HMT330 to a PC.
Many ways to install and
versatile outputs
Mains and DC power options, and
several mounting accessories make
the instrument easy to install.
The HMT330 can have up to three
analog outputs. Isolated galvanic
power supply and analog outputs are
also available. For serial interface the
USB connection, RS232 and RS485
can be used.
HMT330 is also capable in applying
the MODBUS communication protocol
and together with an appropriate
connection option provides either
MODBUS RTU (RS485) or MODBUS
TCP/IP (Ethernet) communication.
Flexible calibration
The HMT330 instruments are
calibrated at six humidity points at
the factory. A quick, one-point field
calibration can be performed with
the hand-held HM70 meter. A twopoint calibration can be performed
with the HMK15 salt bath calibrator
in a controlled environment. The
transmitter can be sent to Vaisala for
recalibration. Accredited calibrations
and maintenance contracts are also
available.
Technical data
Performance
Inputs and outputs
Relative humidity
Operating voltage
10 ... 35 VDC, 24 VAC
with optional power supply module
100 ... 240 VAC, 50/60 HZ
Power consumption at +20 °C (Uin 24 VDC)
RS-232
max. 25 mA
max. 25 mA
Uout 2 x 0 ... 1 V/0 ... 5 V/0 ... 10 V
max. 60 mA
Iout 2 x 0 ... 20 mA
display and backlight
+ 20 mA
during chemical purge
max. 110 mA
during probe heating (HMT337)
+ 120 mA
Analog outputs (2 standard, 3rd optional)
current output
0 ... 20 mA, 4 ... 20 mA
voltage output
0... 1 V, 0... 5 V, 0... 10 V
Accuracy of analog outputs at +20 °C
±0.05% full scale
Temperature dependence of the
analog outputs
±0.005%/°C full scale
External loads
current outputs
RL < 500 ohm
0 ... 1 V output
RL > 2 kohm
0 ... 5 V and 0 ... 10 V outputs
RL > 10 kohm
Max. wire size
0.5 mm2 (AWG 20)
stranded wires recommended
Digital outputs
RS-232, RS-485 (optional)
Protocols
ASCII commands, MODBUS RTU
Service connection
RS-232, USB
Relay outputs (optional)
0.5 A, 250 VAC
Ethernet interface (optional)
Supported standards
10BASE-T, 100BASE-TX
Connector
8P8C (RJ45)
IPv4 address assignment
DHCP (automatic), static
Protocols
Telnet, MODBUS TCP/IP
WLAN interface (optional)
Supported standards
802.11b
Antenna connector type
RP-SMA
IPv4 address assignment
DHCP (automatic), static
Protocols
Telnet, MODBUS TCP/IP
Security
WEP 64/128, WPA2/802.11i
Authentication / Encryption (WLAN)
Open / no encryption
Open / WEP
WPA Pre shared key / TKIP
WPA Pre shared key / CCMP (a.k.a. WPA2)
Optional data logger with real-time clock
Logged parameters
max. four with trend/min/max values
Logging interval
10 sec (fixed)
Max. logging period
4 years 5 months
Logged points
13.7 million points per parameter
Battery lifetime
min. 5 years
Display
LCD with backlight, graphic trend display
of any parameter
Menu languages
English, Chinese, Japanese, Spanish, German,
French, Swedish, Russian, Finnish
Measurement range
0 ... 100 % RH
Accuracy (including non-linearity, hysteresis, and repeatability)
for typical applications
with Vaisala HUMICAP® 180 or 180R
for applications with
with Vaisala HUMICAP® 180C or 180RC
chemical purge/warmed probe
at +15 ... +25 °C (59 ... +77 °F)
±1 %RH (0 ... 90 %)
±1.7 %RH (90 ... 100 %RH)
at -20 ... +40 °C (-4 ... +104 °F)
±(1.0 + 0.008 x reading) %RH
at -40 ... +180 °C (-40 ... +356 °F)
±(1.5 + 0.015 x reading) %RH
Factory calibration uncertainty (+20 °C)
± 0.6 % RH (0 ... 40 %RH)
± 1.0 % RH (40 ... 97 %RH)
(Defined as ±2 standard deviation limits. Small
variations possible, see also calibration certificate.)
Response time (90 %) at +20 °C (+68 °F) 8 s / 17 s* with grid filter
in still air
20 s / 50 s* with grid + steel netting filter
40 s / 60 s* with sintered filter
* with HUMICAP® 180R or 180RC sensor
Temperature
Accuracy at +20 °C (+68 °F)
± 0.2 °C (± 0.36 °F)
Accuracy over temperature range (measurement range
depends on model)
°C
0.7
0.6
0.5
0.4
0.3
0.2
0.1
°C
0
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
-0.7
-80
-60
-40
-20
0
20
40
60
80
100
120
140
160
180
Temperature sensor
PT 100 RTD 1/3 Class B IEC 751
Other variables available (depends on model)
dewpoint temperature, mixing ratio, absolute humidity, wet bulb
temperature, enthalpy, water vapor pressure
Mechanics
Dimensions
Cable bushing
M20 x 1.5 for cable diameter
Measurement range
8 ... 11 mm/0.31 ... 0.43"
Conduit fitting
1/2" NPT
User cable connector (optional)
M12 series 8-pin (male)
option 1
female plug with 5 m (16.4 ft) black cable
option 2
female plug with screw terminals
Probe cable diameter
HMT333 (+80 °C)
6.0 mm
other probes
5.5 mm
Housing material
G-AlSi 10 Mg (DIN1725)
Housing classification
IP 65 (NEMA4)
Dimensions in mm (inches)
Transmitter with WLAN antenna
183 (7.20)
same as measurement range
-40 ... +60 °C (-40 ... 140 °F)
0 ... +60 °C (32 ... 140 °F)
Complies with EMC standard
EN61326-1, Industrial Environment
106 (4.17)
Operating temperature
for probe
for transmitter body
with display
Electromagnetic compatibility
116 (4.57)
Operating environment
Mounting options
Mounting with Wall
Mounting Kit
Mounting with DIN Rail
Installation Kit
Pole Installation with Installation
Kit for Pole or Pipeline
Mounting Rain Shield with
Installation Kit
TYPE APPROVED PRODUCT
CERTIFICATE NO.: A-11440
Ref. B210951EN-B ©Vaisala 2011
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.
HMT331 Humidity and Temperature Transmitter
for Demanding Wall-Mounted Applications
HMT331 Humidity and Temperature
Transmitter for demanding wallmounted applications
The HMT331 is the state-of-the-art wall-mount humidity instrument.
Features/Benefits
▪
For temperatures -40 ... +60 °C
(-40 ... +140 °F)
▪
Application examples:
cleanrooms, pharmaceutical
processes, greenhouses,
swimming halls, museums and
archives
Technical Data
Temperature measurement range
-40 ... +60 °C (-40 ... +140 °F)
Accessories
PC software + cable
USB-RJ45 Serial Connection Cable
Connection cable for HM70
Wall mounting plate (plastic)
Pole installation kit
Rain shield
DIN rail installation set
Dimensions
Dimensions in mm (inches)
215005
219685
211339
214829
215108
215109
215094
The Vaisala HUMICAP® Humidity and
Temperature Transmitter HMT331
is the top-of-the-line wall-mounted
transmitter for demanding HVAC and
condition monitoring applications.
Compared to regular wall-mounted
transmitters, the HMT331 offers,
higher measurement performance,
better chemical tolerance, advanced
graphical display features, more
powering options, more output
options and a wider variety of output
humidity parameters.
Graphical display of
history and
measurement trends
The HMT330 series features a large
numerical and graphical display,
allowing users to easily monitor
operational data, measurement trends
and one-year measurement history.
The optional data logger with realtime clock makes it possible to
generate over four years of measured
history, and zoom in on any desired
time or time frame.
Outputs and power supply
options for every need
The output options include three
analog outputs, RS-232, RS-485, and
alarm relays.
The voltage supply range is from 10 to
35 VDC. With an additional module,
the transmitter can be connected to
all universal mains AC supplies.
The input/output cable can be fed
through the back of the transmitter,
which is a useful feature, especially
for installations in cleanrooms.
HMT333 Humidity and Temperature Transmitter
for Ducts and Tight Spaces
210697 duct installation kit for
HMT333 and HMT337.
For outdoor environments, the
DTR502B solar radiation shield
provides protection for the probe.
The shield can be installed on a pole,
a beam or a flat surface.
The HMT333 transmitter has a small probe for remote applications.
Features/Benefits
For remote probe installations
in demanding HVAC
applications
▪
For temperatures -40 ... +80 °C
(-40 ... +176 °F) or
-40 ... +120 °C (-40 ... +248 °F)
▪
Small thermal mass - fast
response to temperature
changes
▪
Application examples:
cleanrooms, pharmaceutical
processes, greenhouses,
environmental chambers
The Vaisala HUMICAP® Humidity and
Temperature Transmitter HMT333 is
a versatile instrument for applicatons
where a small remote probe is
needed.
Flexible installation
To install the probe in ducts,
channels and through walls, an
installation kit is available with an
aluminum flange, lead-through piece,
and steel support bar.
HMT333 has two probe cable
options available, a flexible one that
withstands heat up to +80° C, and a
durable cable that withstands heat
up to +120° C. Both cable options are
available in lengths of 2, 5, and 10
meters.
M9x1
Ø 12 (0.47)
▪
For moderate humidities
and temperatures
37.5 (1.48)
78.5 (3.09)
98.5 (3.88)
The HMT333 is typically used in
demanding HVAC applications such
as cleanrooms, pharmaceutical
processes, and greenhouses, or in
processes of moderate temperature.
For environments with continuously
high humidity, the HMT337 with a
warmed, vapor-tight and stainless
steel probe is recommended.
Technical Data
Temperature measurement range
-40 ... +80 °C (-40 ... +176 °F) or
-40 ... +120 °C (-40 ... +248 °F)
Accessories
Duct installation kit
210697
Cable gland
HMP247CG
PC software + cable
215005
USB-RJ45 Serial Connection Cable 219685
Connection cable for HM70
211339
Wall mounting plate (plastic)
214829
Pole installation kit
215108
Rain shield
215109
Solar radiation shield
DTR502B
DIN rail installation set
215094
Dimensions
Dimensions in mm (inches)
HMT334 Humidity and Temperature Transmitter
for High Pressure and Vacuum Applications
The display shows measurement
trends and over four-year real time
measurement history.
The HMT334 is ideal for permanent installations into pressurized or vacuum
processes.
Features/Benefits
▪
For pressures up to 100 bar
and vacuum applications
▪
For temperatures
-70 ... +180 °C (-94 ... +356 °F)
▪
▪
ISO and NPT threads available
Application example:
test chambers
Vaisala HUMICAP®
performance
Accessories
Dimensions
Dimensions in mm (inches)
210697
17225
215005
219685
211339
214829
215108
215109
215094
M22×1.5 or
NPT 1/2"
Temperature measurement range
-70 ... +180 °C (-94 ... +356 °F)
Operating pressure
0 ... 10 MPa (0 ... 100 bar)
The HMT334 incorporates Vaisala’s
more than 30 years of experience in
industrial humidity measurement.
The sensor provides accurate and
reliable measurement and is immune
to particulate contamination and
most chemicals.
ø12 (0.47)
Technical Data
Fitting body ISO M22 x 1.5
Fitting body NPT 1/2"
PC software + cable
USB-RJ45 Serial Connection Cable
Connection cable for HM70
Wall mounting plate (plastic)
Pole installation kit
Rain shield
DIN rail installation set
The Vaisala HUMICAP® Humidity and
Temperature Transmitter HMT334
is designed to measure humidity
in pressurized spaces or vacuum
chambers. Each probe is tested
to ensure a gas and vacuum tight
installation.
41 (1.61)
120 (4.72)
170 (6.69)
Graphical display of
measurement trends and
real time history
The HMT330 series features a
numerical and graphical display. The
user can easily monitor operational
data, measurement trends and up to
one-year history.
The optional data logger with realtime clock makes it possible to
generate more than four years of
measured history, and zoom in on
any desired time or time frame.
Using a serial line, the measurement
data can be transferred to a PC where
it can be further processed and
copied to other programs.
HMT335 Humidity and Temperature Transmitter
for High Temperatures
The installation flange allows an
adjustable installation depth for the
probe.
The HMT335 has a robust stainless steel probe ideal for high flow rates in hot
processes.
Features/Benefits
▪
For temperatures
-70 ... +180 °C (-94 ... +356 °F)
▪
▪
Long metal probe head
▪
▪
Adjustable installation depth
The Vaisala HUMICAP® Humidity and
Temperature Transmitter HMT335 has
a long stainless steel probe designed
for high temperatures.
Robust probe ideal for
high flow rates
Stainless steel installation
flange available
Application example:
hot drying processes
The HMT335 is ideal for duct
measurements as the probe tolerates
mechanical stress and withstands high
flow rates. The HMT335 can be used,
for example, in a hot drying process.
Graphical display of history
and measurement trends
Temperature measurement range
-70 ... +180 °C (-94 ... +356 °F)
The HMT335 features a numerical and
graphical display. The user can easily
Accessories
Mounting flange
PC software + cable
USB-RJ45 Serial Connection Cable
Connection cable for HM70
Wall mounting plate (plastic)
Pole installation kit
Rain shield
DIN rail installation set
Dimensions
Dimensions in mm (inches)
210696
215005
219685
211339
214829
215108
215109
215094
41 (1.6)
51 (2.0)
ø13.5 (0.53)
Technical Data
192 (7.56)
253 (9.96)
monitor measurement operational
data, measurement trends and oneyear measurement history.
The optional data logger with realtime clock makes it possible to
generate more than four years of
measured history, and zoom in on
any desired time or time frame.
Vaisala HUMICAP®
performance
The sensor provides accurate and
reliable measurement and is immune
to particulate contamination and
most chemicals.
HMT337 Humidity and Temperature Transmitter
for High Humidity Applications
Duct installation kit
Features/Benefits
The HMT337 is the ideal transmitter for the most demanding process and
meteorological measurements.
Accessories
Cable gland and AGRO
HMP247CG
Duct installation kit (RH probe)
210697
Duct installation kit (T probe)
215003
Swagelok fittings (NPT and ISO)
for both RH and T probes
Solar radiation shield
DTR502B
Meteorological inst. kit
HMT330MIK
PC software + cable
215005
USB-RJ45 Serial Connection Cable 219685
Connection cable for HM70
211339
Wall mounting plate (plastic)
214829
Pole installation kit
215108
Rain shield
215109
DIN rail installation set
215094
Dimensions
Dimensions in mm (inches)
▪
Warmed probe for superior
performance in condensing
environments
▪
Small, stainless steel, vaportight remote probe
▪
For temperatures
-70 ... +180 °C (-94 ... +356 °F)
measurement in environments where
humidity is near saturation. The
warming prevents condensation from
forming on the sensor.
• Basic: non-warmed probe for
moderate humidities
As the probe is warmed, the humidity
level inside it stays below the ambient
level. With accurate temperature
measurement, the ambient dewpoint
can be calculated precisely.
• With a warmed probe: for nearcondensing conditions and dew
point measurement
• With a warmed probe and an
additional temperature sensor: for
near-condensing conditions and
relative humidity measurement
True humidity readings
in conditions of
condensation
37.5 (1.48)
79.5 (3.13)
99.5 (3.92)
If the relative humidity value is
needed, an additional temperature
sensor is used. The measured
ambient temperature provides
the compensation for calculating
relative humidity and other humidity
parameters.
Many ways to install
The Vaisala unique warmed
probe provides fast and reliable
M9×1
Temperature measurement range
-70 ... +180 °C (-94 ... +356 °F)
For high-humidity applications
in industry and meteorology
The Vaisala HUMICAP® Humidity
and Temperature Transmitter
HMT337 is delivered in one of three
configurations:
ø 12 (0.47)
Technical Data
▪
A tight installation through a process
wall can be achieved with Swagelok ®
fittings. Meteorological installation
kits for outdoor installations and duct
installation kits are also available.
HMT338 Humidity and Temperature Transmitter
for Pressurized Pipelines
down to the appropriate depth. The
hex nut is tightened with a wrench
to lock the probe in its place. Hot
tapping is possible in pressures up to
10 bar.
Graphical display of
history and measurement
trends
From the display, the user can
easily monitor operational data,
measurement trends and one-year
measurement history.
The HMT338 is ideal for installations in pressurized processes where the probe
needs to be removed while the process sis running.
Features/Benefits
▪
Installed through ball valve
– can be inserted and removed
while the process is running
▪
▪
▪
Adjustable probe depth
▪
Two probe lengths available
Pressure tolerance 40 bar
For temperatures
-70 ... +180 °C (-94 ... +356 °F)
The Vaisala HUMICAP® Humidity and
Temperature Transmitter HMT338 is
designed for pressurized processes.
Insert or remove probe
while the process is
running
With “hot tapping”, the probe is
inserted directly into the process
while it is running, without the need
for venting or lowering the process
pressure.
The probe is screwed into a ball
valve assembly that has been fixed
to the process pipe or wall. The
adjustable hex nut is hand-tightened
to temporarily hold the probe to the
process. Then the probe is pushed
The optional data logger with
real-time clock makes it possible
to generate more than four years
of measured history, and zoom in
on any desired time or time frame.
The battery backup of the real-time
clock guarantees a reliable logging of
measured data.
Vaisala HUMICAP®
The HMT338 incorporates Vaisala’s
more than 30 years of experience in
industrial humidity measurement.
The sensor provides accurate and
reliable measurement and is immune
to particulate contamination and
most chemicals.
Technical Data
Temperature measurement range
-70 ... +180 °C (-94 ... +356 °F)
Operating pressure
0 ... 4MPa (0 ... 40 bar)
Accessories
Ball valve set
BALLVALVE-1
Pressure fitting ISO 1/2 to NPT 1/2 210662
PC software + cable
215005
USB-RJ45 Serial Connection Cable 219685
Connection cable for HM70
211339
Wall mounting plate (plastic)
214829
Pole installation kit
215108
Rain shield
215109
DIN rail installation set
215094
Dimensions
Dimensions in mm (inches)
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