Vaisala HMD70U Service Manual Page 61
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59
The Vaisala DRYCAP
®
HandHeld
Dewpoint Meter DM70 is ideal for field
checking DMT340 transmitters.
Dimensions
Dimensions in mm (inches)
The DMT342 probe is installed using
a flange or sampling cell. The small
probe is ideal for integrating into larger
equipment.
Flange intersection
Sampling cell HMP302SC
ø
36 (1.42)
ø
32 (1.26)
41(1.61)
M6
ø12 (0.47)
1/8"-27 NPT
9(0.35)
7 (0.28)
71.5 (2.81)
92.5 (3.64)
81 (3.19)
71 (2.80)
58.7 (2.31)
16 (0.63)
ø24.5
45°
45°
45°
M6
ø12.5 (0.49)
1/8"-27 NPT
Dimensions
Dimensions in mm (inches)
The DMT344 features a threaded
connection for extended pressures
with different fitting body options. It is
ideal for permanent installations into
pressurized or vacuum processes.
NPT 1/2"
170
41
120
Ø 12
M22x1.5 or
(6.69)
(4.72)
(1.61)
(0.47)
the user to monitor measurement
trends and one-year history.
The optional data logger with real-
time clock makes it possible to
generate more than four years of
measured history and zoom in on any
desired time or time frame.
The display alarm allows tracking
of any measured parameter, with a
freely configurable low and high limit.
Versatile Outputs and
(Wireless) Data Collection
The DMT340 can be connected to a
network with an optional (W)LAN
interface, which enables a (wireless)
Ethernet connection.
For serial interface also the USB
connection, RS232 and RS485 can
be used. Additionally an alarm relay
option is available.
The transmitter can have up to three
analog outputs. Galvanic isolation of
supply power and analog outputs are
also offered.
The recorded measurement data
can be viewed on the display or
transferred to a PC with Microsoft
Windows
®
software.
Easy Installation
The DMT340 has a variety of features
to choose from. Units are delivered
installation-ready.
Probe Specifications
DMT342 with Small Size
Flanged Probe
Pressure range 0 ... 50 bar/0 ... 725 psia
Mechanical durability up to 250 bar/
3625 psia
Probe diameter 12 mm/0.5 inch
Installation
Flange 36 mm/1.4 inch
Sampling cell HMP302SC
Probe Specifications
DMT344 with Probe for
High Pressures
Pressure range 0 ... 50 bar/0 ... 725 psia
Mechanical durability up to 100 bar/
1450 psia
Probe diameter 12 mm/0.5 inch
Installation
Fitting Body M22 x 1.5
Fitting Body NPT 1/2"
- 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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