Vaisala HMD70U Service Manual Page 63
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Technical Data
Measured Parameters
DEW POINT
Sensor Vaisala DRYCAP
®
180M
Measurement range -60 ... +80 °C (-76 ... +176 °F) Td
For continuous use -60 ... +45 °C (-76 ... +113 °F) Td
Accuracy
up to 20 bar/290 psia ±2 °C/±3.6 °F see the accuracy
graph below
20 ... 50 bar/290 ... 725 psia additional inaccuracy +1 °C Td
Dew point accuracy vs. measurement conditions
Response time 63% [90%] at +20°C gas temperature
Flow rate 1 l/min and 1 bar pressure
-60 ... -20 °C Td (-76 ... -4 °F Td) 5s [10s]
-20 ... -60 °C Td (-4 ... -76 °F Td) 45s [10min]
TEMPERATURE
Measurement range 0 ... +80 °C (+32 ... +176 °F)
Accuracy ±0.2 °C at room temperature
Temperature sensor Pt 100 IEC 751 1/3 class B
Operating Environment
Operating temperature
for probes -40 ... +80 °C (-40 ... +176 °F)
Mechanical durability Up to +180 °C (+356 °F)
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 See probe specifications
Sample flow rate No effect
Measured gases non corrosive
Complies with EMC standard EN61326-1, Electrical equipment for
measurement, control and laboratory use - EMC requirements;
Industrial environment.
RELATIVE HUMIDITY
Measurement range 0 ... 70 %RH
Accuracy (RH <10 %RH, at + 20 °C) ±0.004 %RH + 20 % of reading
PPM
Measurement range (typical) 10 ... 2500 ppm
Accuracy (at + 20 °C, 1 bar) 1 ppm + 20 % of reading
Other measurement parameters available (depends on model)
mixing ratio, absolute humidity, pressure dew point calculated
to 1 bar, temperature difference (T-Td), water vapor pressure
Digital outputs RS-232, RS-485 (optional)
Service connection RS-232, USB
Relay outputs 0.5 A, 250 VAC, SPDT (optional)
Ethernet interface (optional)
Supported standards 10/100Base-T
Connector RJ45
Protocols Telnet
WLAN interface (optional)
Supported standards 802.11b
Antenna connector type RP-SMA
Protocols Telnet
Security WEP 64/128,WPA
Authentication / Encryption
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. three 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
Display menu languages English, Chinese, Spanish, German,
French, Japanese, Russian, Swedish,
Finnish
Inputs and Outputs
Operating voltage 10 ... 35 VDC, 24 VAC
with optional power supply module 100 ... 240 VAC 50/60 Hz
Power consumption @ 20 °C (U
in
24VDC)
RS-232 max 25 mA
U
out
2 x 0...1V / 0...5V / 0...10V max 25 mA
I
out
2 x 0...20 mA max 60 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
- 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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