Vaisala HMD70U Service Manual Page 125
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Performance
BAROMETRIC PRESSURE
Pressure range 500 ... 1100 hPa, 50 ... 1100 hPa
Accuracy 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
uncertainty**
±0.07 hPa ±0.15 hPa ±0.20 hPa
Accuracy at +20 °C*** ±0.10 hPa ±0.20 hPa ±0.30 hPa
Temperature
dependence****
±0.1 hPa ±0.1 hPa ±0.3 hPa
Total accuracy
(-40 ... +60 °C/
-40 ... +140 °F)
±0.15 hPa ±0.25 hPa ±0.45 hPa
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 of the working
standard including traceability to NIST.
*** 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.
RELATIVE HUMIDITY
Measurement range 0 ... 100 % RH
Accuracy (including non-linearity,
hysteresis, and repeatability at
+15 ... +25 °C ±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
limits. Small variations possible,
see also calibration certificate.)
± 0.6 % RH (0 ... 40 %RH)
± 1.0 % RH (40 ... 97 %RH)
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 -40 ... +60 °C (-40 ... +140 °F)
Accuracy at +20 °C (+68 °F) ± 0.2 °C (± 0.4 °F)
Temperature units °C, °F
Temperature sensor PT100 RTD 1/3 Class B IEC 751
ACCURACY OVER TEMPERATURE RANGE
Operating Environment
Operating temperature -40 ... +60 °C (-40 ... +140 °F)
with display 0 ... +60 °C (+32 ... +140 °F)
Humidity range non-condensing
Electromagnetic compatibility EN61326-1:1997 + Am1:1998
+Am2:2001; Industrial Environment
Δ
°C
°C
0.5
0.4
0.3
0.2
0.1
-0.1
-0.2
-0.3
-0.4
-0.5
0
0-40 -20 20 40 60
Technical Data
The display also shows the WMO pressure
trend ∆P 3h and tendency of 0 ... 9.
Inputs and Outputs
Operating voltage 10 ... 35 VDC, 24 VAC
with optional power supply module 100 ... 240 VAC, 50/60 Hz
Power consumption at +20 °C (U
in
24 VDC)
RS-232 max. 28 mA
U
out
3 x 0 ... 1 V/0 ... 5 V/0 ... 10 V max. 33 mA
I
out
3 x 0 ... 20 mA max. 63 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 4 s
class B 3 s
External loads
current outputs R
L
< 500 ohm
0 ... 1 V output R
L
> 2 kohm
0 ... 5 V and 0 ... 10 V outputs R
L
> 10 kohm
- 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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