Vaisala HMD70U Service Manual Page 98
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MMT162 Compact Moisture in Oil and
Temperature Transmitter for OEM Applications
The Vaisala HUMICAP
®
Moisture
and Temperature Transmitter for Oil
MMT162 is an excellent economical
solution for reliable on-line detection
of moisture in oil.
Reliable Vaisala
HUMICAP
®
Technology
The MMT162 incorporates the latest
generation of the Vaisala HUMICAP
®
Sensor. The sensor is developed for
demanding moisture measurement
in liquid hydrocarbons and has been
successfully used in oil applications
for over a decade. The sensor’s
excellent chemical tolerance provides
accurate and reliable measurement
over the measurement range.
The MMT162 enables on-line moisture monitoring in oils even in the most
demanding applications.
Water Activity
Measurement
The MMT162 measures moisture in
oil in terms of the water activity (aw)
and temperature (T). Water activity
directly indicates whether there is
a risk of free water formation. The
measurement is independent of oil
type, age and temperature. The ppm
calculation for mineral oil based
transformer oil is optional in the
MMT162.
Several Outputs - One
Connector
The MMT162 has two analog
outputs that can be scaled and
the measurement ranges changed.
Additionally, the transmitter has an
RS-485 serial output. The signals and
the unit power travel in the same
cable.
An optional LED-cable enables a
visual alarm.
Compact, Rugged
and Intelligent
Due to its compact size, the MMT162
is quickly and easily installed in
tight spaces. Units are delivered fully
assembled, however, you can re-
configure them to suit your needs.
MM70
In combination with an MM70
indicator, the MMT162 provides an
ideal tool for on site calibration.
The MI70 indicator can be used as a
display, communication, and data-
logging device for the MMT162.
Features/Benefits
▪
Continuous measurement of
moisture in oil
▪
Measures in lubrication,
hydraulic and transformer oils
▪
Excellent pressure and
temperature tolerance
▪
Proven Vaisala HUMICAP®
Sensor, 15 years in oil
applications
▪
Measures water activity
- ppm-calculation available for
transformer oil
▪
Small size, easy to integrate
▪
NIST traceable calibration
(certificate included)
- 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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