Vaisala HMD70U Service Manual Page 68
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Technical Data
Operating Environment, Both Models
Mechanical durability Up to +180 °C (+356 °F) for DMT345
of probes Up to +350 °C (+662 °F) for DMT346
for transmitter body -40 ... +60 °C (-40 ... +140 °F)
with display 0 ... +60 °C (32 … +140 °F)
Storage temperature range -55 ... +80 °C (-67 … +176 °F)
Pressure range for probes slight pressure difference (~ 200 mbar)
Measured gases non corrosive gases
Complies with EMC standard EN61326-1, Electrical equipment for
measurement, control and laboratory use - EMC requirements;
Industrial environment.
Measured Variables DMT346
DEWPOINT DMT346
Sensor Vaisala DRYCAP
®
180S
Measurement range -25 ... +100 °C (-13 ... +212 °F) Td
Accuracy ±2 °C (±3.6 °F) Td
See the accuracy graph below
Dewpoint accuracy vs. measurement conditions
Response time 63 % [90 %] flow rate 1 l/min and 1 bar pressure
from dry to wet 5s [10 s]
from wet to dry including auto-calibration 45s [5 min]
MIXING RATIO DMT346
Measurement range (typical) 0 ... 1000 g/kg (0 ... 7000 gr/lbs)
Accuracy (typical) ±12% of reading
Inputs and Outputs, Both Models
Operating voltage 10 ... 35 VDC, 24 VAC
with optional power supply module 100 ... 240 VAC 50/60 Hz
Default start-up time
initial reading after power-up 3 s
full operation after sensor Purge and Autocal about 6 min
Power consumption @ 20 °C (U
in
24 VDC)
U
out
2x0 ... 1V/0 ... 5V/0 ... 10V max 25 mA
I
out
2x0 ... 20mA max 60 mA
RS-232 max 25 mA
display and backlight + 20 mA
during sensor purge + 110 mA max
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 R
L
< 500 ohm
0 ... 1V output R
L
> 2 kohm
0 ... 5V and 0 ... 10V outputs R
L
> 10 kohm
Max wire size 0.5 mm
2
(AWG 20) stranded
wires recommended
Digital outputs RS-232, RS-485 (optional)
Protocols ASCII commands, MODBUS RTU
Service connection RS-232, USB
Relay outputs 2+2 pcs (optional) 0.5 A, 250 VAC, SPDT
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) DHCP (automatic), static
Supported standards 802.11b
Antenna connector type RP-SMA
IPv4 address assignment DHCP (automatic), static
Protocols Telnet, MODBUS TCP/IP
Security WEP 64/128,WPA
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 (optional) LCD with backlight, graphic trend display
Display menu languages English, French, Spanish, Chinese,
German, Japanese, Russian, Swedish, Finnish
Mechanics, Both Models
Cable bushing M20x1.5 For cable diameter
8 ... 11mm/0.31 ... 0.43"
Conduit fitting (optional) 1/2"NPT
User cable connector (optional) M12 series 8- pin (male)
option 1 with plug (female) with 5 m /16.4 ft black cable
option 2 with plug (female) with screw terminals
USB-RJ45 Serial Connection Cable part. no 219685
Probe cable diameter 5.5 mm
Probe cable length 2 m, 5 m or 10 m
Housing material G-AlSi 10 Mg (DIN 1725)
Housing classification IP 65 (NEMA 4X)
Housing weight 1.2 kg
- HUMIDITY / DEW POINT / 1
- PRESSURE / WEATHER 1
- ACC URATE 2
- Humidity 4
- Dew Point 4
- Mounting Options 9
- Graphical Display of 10
- History and 10
- Measurement Trends 10
- Outputs and Power Supply 10
- Options for Every Need 10
- Flexible Installation 11
- For Moderate Humidities 11
- Vaisala HUMICAP® 12
- Performance 12
- Measurement Trends and 12
- Real Time History 12
- 41 (1.6) 13
- 51 (2.0) 13
- 192 (7.56) 13
- 253 (9.96) 13
- 37.5 (1.48) 14
- 79.5 (3.13) 14
- 99.5 (3.92) 14
- Temperature Transmitters 16
- HMP361 for wall mounting 17
- HMP363 for confined spaces 17
- HMP364 for high pressure 17
- HMP365 for high temperature 18
- HMP367 for high humidities 18
- HMP368 for pressurized 18
- Transmitter 22
- Interchangeable Probe 24
- Fast, On-Site Calibration 26
- Measures both Humidity 26
- Resistant to Chemicals 28
- Vaisala INTERCAP 30
- Humidity and Temperature 30
- Transmitter Series HMW80 30
- HVACApplications 32
- Demanding Applications 34
- Unique Warmed Probe 34
- Vaisala HUMICAP® Sensor 34
- Chambers 36
- Probe HMP60 38
- Vaisala HUMICAP 40
- Probe HMP110 40
- Three Probes 42
- MI70 Link 42
- Reliable and Cost-ecient 47
- HVAC Products 47
- Fast and Easy-to-Use 48
- HMK15 Humidity Calibrator 50
- DTR500 Solar Radiation 54
- Versatile Outputs and 61
- (Wireless) Data Collection 61
- Easy Installation 61
- Probe Specifications 62
- Ensure dry 65
- Measure Humidity Directly 66
- DMT345, Accurate in Hot 66
- OEM Applications 70
- Low Maintenance 72
- Dewpoint temperature (°C) 75
- DMT132 Dewpoint Transmitter 76
- DEW POINT 77
- CALCULATED VARIABLES 77
- Indoor Applications 78
- 110 (4 .33) 79
- 85 (3.35) 79
- 33 (1.30) 79
- DSS70A Portable 82
- Sampling System 82
- Sampling Cells for 82
- Pressurized Processes 82
- Online Reliability 86
- Savings Across the Board 86
- Risk-Free, Greener 86
- Solution 86
- The Fruit of Experience 86
- Multiparameter Transmitter 88
- When Moisture is a Problem 89
- Knowledge is Power 89
- Literally 89
- Transmitter Series for Oil 90
- Moisture in Oil 90
- The Vaisala HUMICAP 91
- Hand-Held 91
- R1/2" ISO7/1 92
- Prevent it 95
- Transmitter for Oil 96
- Features/Benefits 100
- Technical Data 101
- 0 ... 2 % 102
- Interchangeable Probes 104
- Demanding OEM Applications 106
- GMM111 Carbon Dioxide Module 108
- Vaisala CARBOCAP 110
- Technology 110
- Two Sampling Methods 110
- Features/Benefi ts 112
- Demand-controlled Ventilation 114
- GMM112 Carbon Dioxide Module 118
- GMM20W Carbon Dioxide Module 120
- Pressure 122
- PTU300 Models 123
- Mechanics 126
- Accessories 126
- Dimensions 126
- IN CONTROLLED ENVIRONMENTS 127
- Take the Lab to the Field 130
- For more information, visit 131
- Standard PTB330TS 132
- PTB210 Digital Barometer 134
- Calculate 137
- Vaisala BAROCAP® 138
- Accuracy and Stability 138
- Applications 138
- Ideal for outdoor 140
- Carefree maintenance 140
- Operating Environment 142
- Available Options 142
- Figure 1 143
- Figure 2 with Process 143
- Valve Actuator and 143
- Test Jacks 143
- Measuring Acoustic 146
- Precipitation 146
- Wind Measurement 150
- Vaisala Service Offering 152
- Accredited Body 153
- Accredited Parameters 153
- Vaisala Filters 154
- Vaisala Filters continued 155
- Vaisala Contact Information 158
- ASIA AND PACIFIC 159
- NORTH AMERICA 159
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