www.vaisala.com
PTU300 Combined Pressure, Humidity and
Temperature Transmitter for Demanding Applications
The Vaisala Combined Pressure, Humidity and Temperature Transmitter PTU300 is
a versatile, multi-purpose instrument.
Features/Benefits
▪
Barometric pressure, humidity,
and temperature measurement
in one transmitter
▪
Available with up to two
barometric pressure sensors
for added reliability
▪
RS232C serial interface with
NMEA protocol for GPS use
▪
Graphical display and keypad
for convenient operation
▪
Analog outputs, RS232/485,
WLAN/LAN
▪
MODBUS protocol support
(RTU/TCP)
▪
Optional universal power
supply module
▪
NIST traceable calibration
(certificate included)
▪
HMT330MIK installation kit for
outdoor use
▪
Applications include
environmental monitoring
in calibration laboratories,
industrial applications, GPS
meteorology: estimating
precipitable water vapor in the
atmosphere, weather stations
One Transmitter,
Three Measurements
The Vaisala Combined Pressure,
Humidity and Temperature Transmitter
PTU300 is a unique instrument
measuring three parameters
simultaneously.
You can choose from the following
probe options: PTU301 for laboratories,
PTU303 for general use, PTU307 warmed
probe for outdoor and demanding
meteorology applications, and
PTU30T for pressure and temperature
measurement only.
Proven Vaisala Sensor
Technology
The PTU300 incorporates sensors
known for their high accuracy and
excellent long-term stability: Vaisala
BAROCAP® for pressure measurement
and Vaisala HUMICAP® for humidity
measurement. The temperature sensor
is a platinum RTD sensor.
Graphical Display of
Measurement Data and
Trends for Convenient
Operation
The PTU300 features a large
numerical and graphical display with a
multilingual menu and keypad. It allows
users to easily monitor operational
data, measurement trends, and access
measurement history for the past
12 months.
The optional data logger, with real-time
clock, makes it possible to generate over
four years of measurement history and
zoom in on any desired time or time frame.
The display alarm allows any measured
parameter to be tracked, with freely
configurable low and high limits.
Versatile Outputs and
Data Collection
The PTU300 comes with a standard
RS232 serial interface. The output format
is compatible with major GPS receivers
and NMEA-coded messages. An isolated
RS485 is available as an option.
The PTU300 is also capable of applying
the MODBUS communication protocol
and, together with an appropriate
connection option, provides either
MODBUS RTU (RS485) or MODBUS
TCP/IP (Ethernet) communication.
The data logger, with real-time clock
and battery backup, guarantees
reliable logging of measurement data
for over four years. The recorded data
can be viewed on the local 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 service cable makes
it easy to connect the PTU300 to a PC
via the service port.
Outdoor Installation Kit
Outdoor installation is possible using
the optional HMT330MIK installation
kit, for applications requiring reliable
measurements for meteorological
purposes.
PTU300 Models
Dimensions
Dimensions in mm (inches)
120 (4.72)
12 (0.47)
PTU301 for wall mounting
Dimensions
Dimensions in mm (inches)
PTU301 short cable probe with
optional WLAN
106 (4.17)
116 (4.57)
183 (7.20)
42 (1.65)
Flexible Calibration
Quick, one-point field calibration for
humidity is easy using the Vaisala
Hand-Held Humidity
Meter HM70.
With Vaisala Barometric Pressure
Transfer Standard PTB330TS, including
optional humidity and temperature
probe, field check and calibration can
be performed for all three parameters.
PTU300 Models
Dimensions
M9x1
Ø 12 (0.47)
Dimensions in mm (inches)
37.5 (1.48)
78.5 (3.09)
PTU303 probe for outdoor use
98.5 (3.88)
Dimensions
M9x1
Ø 12 (0.47)
Dimensions in mm (inches)
37.5 (1.48)
79.5 (3.13)
PTU307 warmed probe for demanding
meteorological installations
Ø 6 (0.24)
Ø 3.2 (0.13)
99.5 (3.92)
130 (5.12)
Dimensions
Ø 6 (0.24)
Ø 3.2 (0.13)
Dimensions in mm (inches)
130 (5.12)
PTU30T for pressure and temperature
only measurement
Technical Data
Performance
Barometric pressure
Pressure range
Accuracy
500 ... 1100 hPa, 50 ... 1100 hPa
500 ... 1100 hPa 500 ... 1100 hPa 50 ... 1100 hPa
class a
class B
Linearity
±0.05 hPa
±0.10 hPa
±0.20 hPa
Hysteresis*
±0.03 hPa
±0.03 hPa
±0.08 hPa
Repeatability*
±0.03 hPa
±0.03 hPa
±0.08 hPa
Calibration
±0.07 hPa
±0.15 hPa
±0.20 hPa
uncertainty**
Accuracy at +20 °C*** ±0.10 hPa
±0.20 hPa
±0.30 hPa
Temperature
±0.1 hPa
±0.1 hPa
±0.3 hPa
dependence****
Total accuracy
±0.15 hPa
±0.25 hPa
±0.45 hPa
(-40 ... +60 °C/
-40 ... +140 °F)
Long-term stability/year ±0.1 hPa
±0.1 hPa
±0.2 hPa
Response time (100 % response)
one sensor
2 s•
1 s•
1 s•
Pressure units hPa, mbar, kPa, Pa, inHg, mmH20, mmHg, torr, psia
*
Defined as ±2 standard deviation limits of endpoint non-linearity,
hysteresis error or repeatability error and calibration.
** Defined as ±2 standard deviation limits of accuracy in the working
standard including NIST traceability.
*** Defined as the root sum of the squares (RSS) of endpoint non-linearity,
hysteresis error, repeatability error and calibration uncertainty at room
temperature.
**** Defined as ±2 standard deviation limits of temperature dependence over
the operating temperature range.
The display also shows the WMO pressure
trend ∆P 3h and tendency of 0 ... 8.
accuracy over temperature range
Δ °C
0.5
0.4
0.3
0.2
0.1
°C
0
-0.1
-0.2
-0.3
-0.4
-0.5
-40
-20
0
Temperature sensor
relative humidity
Measurement range
Accuracy (including non-linearity,
hysteresis, and repeatability at
+15 ... +25 °C
0 ... 100 %RH
±1 %RH (0 ... 90 %RH)
±1.7 %RH (90 ... 100 %RH)
at -20 ... +40 °C
±(1.0 + 0.008 x reading) %RH
at -40 ... +60 °C
±(1.5 + 0.015 x reading) %RH
Factory calibration uncertainty (+20 °C )
(Defined as ±2 standard deviation
± 0.6 %RH (0 ... 40 %RH)
limits. Small variations possible,
± 1.0 %RH (40 ... 97 %RH)
see also calibration certificate.)
Sensor
for typical applications
Vaisala HUMICAP® 180 or 180R*
for applications with chemical
purge/warmed probe
Vaisala HUMICAP® 180C or 180RC*
Response time (90%) at +20 °C (+68 °F) in still air
with grid filter
8 s / 17 s*
with grid + steel netting filter
20 s / 50 s*
with sintered filter
40 s / 60 s*
* with HUMICAP® 180R or 180RC sensor
temperature
Measurement range, all probes
Accuracy at +20 °C (+68 °F)
Temperature units
-40 ... +60 °C (-40 ... +140 °F)
± 0.2 °C (± 0.4 °F)
°C, °F
20
40
60
Pt100 RTD Class F0.1 IEC 60751
Operating Environment
Operating temperature
with optional display
Humidity range
Electromagnetic compatibility
-40 ... +60 °C (-40 ... +140 °F)
0 ... +60 °C (+32 ... +140 °F)
non-condensing
Complies with EMC standard
EN61326-1, Industrial Environment
Note: Transmitter with display test impedance of 40 ohm
is used in IEC61000-4-5 (Surge immunity)
Inputs and Outputs
Operating voltage
10 ... 35 VDC, 24 VAC ±20%
with optional power supply module
100 ... 240 VAC, 50/60 Hz
Power consumption at +20 °C (Uin 24 VDC)
RS232
max. 28 mA
max. 33 mA
Uout 3 x 0 ... 1 V/0 ... 5 V/0 ... 10 V
max. 63 mA
Iout 3 x 0 ... 20 mA
display and backlight
+20 mA
during chemical purge
max. +110 mA
during probe heating
+120 mA
Settling time at power-up (one sensor)
class A
4s
class B
3s
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
Probe cable diameter
PTU303
6.0 mm
other probes
5.5 mm
Standard probe cable lengths
2 m, 5 m or 10 m
(Additional cable lengths available, please
see order form for details)
Housing material
G-AlSi 10 Mg (DIN 1725)
Housing classification
IP 66
IP65 (NEMA4X) with local display
Weight
depending on selected probe
1.0 - 3.0 kgs
Accessories
PC software and cable
USB-RJ45 Serial Connection Cable
Connection cable for HM70
Wall mounting plate (plastic)
Pole installation kit with rain shield
DIN rail installation set
Duct installation kit, PTU303/307
Cable gland and AGRO, PTU303/307
Solar radiation shield, PTU303/307/30T
Meteorological installation kit
Duct installation kit (T probe)
Dimensions
Dimensions in mm (inches)
M20 x 1.5 for cable diameter
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
116 (4.57)
96 (3.78)
116 (4.57)
Ø 7 (0.28)
183 (7.20)
169 (6.65)
183 (7.20)
77 (3.03)
71 (2.80)
Mechanics
Cable bushing
215005
219685
211339
214829
215109
211477
210697
HMP247CG
DTR502B
HMT330MIK
215003
92 (3.62)
Recommended wire size
0.5 mm2 (AWG 20) stranded wires
Digital outputs
RS232, RS485 (optional)
Protocols
ASCII commands, MODBUS RTU
Service connection
RS232, 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
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, graphical trend display
of any parameter
Menu languages
English, Chinese, Finnish, French, German,
Japanese, Russian, Spanish, Swedish
Analog outputs (optional)
current output
0 ... 20 mA, 4 ... 20 mA
voltage output
0 ... 1 V, 0 ... 5 V, 0 ... 10 V
Humidity and temperature
accuracy at +20 °C
±0.05% full scale
temperature dependence
±0.005%/°C full scale
Pressure
500 ... 1100 hPa
50 ... 1100 hPa
accuracy at +20 °C
±0.30 hPa
±0.40 hPa
accuracy at -40 ... +60 °C
±0.60 hPa
±0.75 hPa
BAROCAP® and HUMICAP® are registered trademarks of Vaisala.
TYPE APPROVED PRODUCT
CERTIFICATE NO.: A-13529
please contact us at
www.vaisala.com/requestinfo
www.vaisala.com
ref. B210954en-e ©vaisala 2013
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to change without notice.