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72
DMT142 Miniature Dewpoint Transmitter
for OEM Applications
The Vaisala DRYCAP
®
Dewpoint Transmitter DMT142 is an
ideal choice for small compressed air dryers, plastic dryers
and other OEM applications.
Features/Benefits
▪
Miniature size dew point transmitter for e.g. small
industrial dryer applications
▪
Vaisala DRYCAP® technology with auto-calibration
▪
Calibration interval of two years
▪
Dew point measurement range -60 ... +60 °C
(-76 ... +140 °F) with an accuracy ±3 °C (±5.4°F)
▪
Withstands condensation
▪
Fast response time
▪
Compatible with Vaisala DRYCAP® Hand-Held
Dewpoint Meter DM70
▪
NIST traceable (certificate included)
Vaisala DRYCAP®
The Vaisala DRYCAP
®
Dewpoint Transmitter DMT142 is
a miniature dew point measurement instrument. The
transmitter can be installed directly into pressurized
systems at 50 bar (725 psia) maximum pressure. The long-
term high performance is achieved with Vaisala DRYCAP
®
technology.
The sensor fully withstands getting wet, and therefore, the
transmitter performs exceptionally well in applications
that occasionally experience process water spikes, such as
pipeline condensation during a system failure or start-up.
The sensor is also immune to particulate contamination,
oil vapor and most chemicals, and is insensitive to the
flow rate.
Long Calibration Interval
The calibration interval of the DMT142 is two years.
Additionally, the Vaisala DRYCAP
®
Hand-Held Dewpoint
Meter DM70 can be used to confirm the performance of the
DMT142 without disconnecting the transmitter.
For any adjustment needs, the transmitter can be sent to
Vaisala Service.
The auto-calibration software works on-line while the
process is running. If the measurement accuracy is not
confirmed, corrections are made automatically.
Technical Data
Measured Variables
DEW POINT TEMPERATURE
Measurement range(typical)
Standard version -40 ... +60 °C (-40 ... +140 °F) T
d
Extended version -60 ... +60 °C (-76 ... +140 °F) T
d
SF
6
version -50 ... +60 °C (-58 ... +140 °F) T
d
Analog output scalings
option 1 -80 ...+20 °C (-112 ... +68 °F) T
d
option 2 -60 ... +40 °C (-76 ... +104 °F) T
d
option 3 free scaling
Accuracy ±3 °C (±5.4 F) T
d
(see graph below)
(when the dew point is below 0 °C (32 °F),
the transmitter outputs frostpoint)
Easy Installation
The DMT142 has a variety of features to choose from,
including different output and installation options. Due to
its small size and light weight, the DMT142 is quickly and
easily installed in tight spaces or in small-size pipelines.
- 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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