Vaisala HUMICAP MMT310 Instrukcja Obsługi Strona 47
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Technical data
DMT152 Dewpoint Transmitter for Low
Dew point Measurement in OEM Applications
DMT152
The Vaisala DRYCAP
®
Dewpoint
Transmitter DMT152 is designed for
measuring low dewpoint in OEM
applications, even down to -80°C .
The excellent long-term stability and
reliability of its performance is based
on the latest DRYCAP
®
polymer
sensor technology.
Low maintenance
The DMT152 mechanics have been
designed for harsh environments
requiring protection against dust,
dirt, and splashed water.
The DRYCAP
®
technology has a low
maintenance need due to its excellent
long-term stability and durability
against condensation.
The small and powerful DMT152 measures dew point down to -80 °C.
Applications
The DMT152 is an ideal choice for
industrial applications where it
is necessary to control very low
humidity. Most typical areas of
use are air and plastics dryers, dry
chambers, pure gases, and
highvoltage circuit breakers.
The DMT152 measures accurately
and reliably also in the challenging
combination of low humidity and
hot air, which is typical in plastics
drying.
Features/Benefits
▪
Compact
▪
Accurate
▪
Vaisala DRYCAP® technology
with a polymer sensor
▪
Measures dew point down
to -80 °C
(-112 °F )
▪
Reduced maintenance costs
due to long calibration
interval
▪
Fast response time
▪
Withstands condensation
▪
NIST traceable
▪
Applications: compressed air,
plastics drying, dry chambers,
pure gases, and high-voltage
circuit breakers
Measured variables
DEW POINT TEMPERATURE
Measurement range -80 ... -10 °C (-112 ... +14 °F)T
d
Accuracy ±2 °C (3.6 °F) T
d
Non-calibrated range -100 ... +20 °C (-148 ... +68 °F)T
d
Analog output scalings
option 1 -80 ... +20 °C (-112 ... +68 °F) T
d
option 2 -100 ... 0 °C (-148 ... +32 °F) T
d
option 3 user-specified output scaling
when dew point is below 0 °C (32 °F) the transmitter outputs
frost point
Accuracy over temperature range
Accessories
Connection cable for MI70 hand-held indicator 219980
USB cable for pc connection 219690
Sampling cells (available for ISO G½”)
basic sampling cell DMT242SC
with Swagelok 1/4” male connectors DMT242SC2
with a quick connector and leak screw DSC74
two-pressure sampling cell DSC74B
NW40 flange 225220SP
Operating environment
Temperature -40 ... +70 °C
(-40 ... +158 °F)
Relative humidity 0 ... 100 %RH (up to + 20 °C/68 °F)
Pressure 0 ... 50 bar (725 psia)
Measured gases non-corrosive gases
Sample flow rate no effect on measurement accuracy
Outputs
Two analog outputs (scalable)
4 ... 20 mA, 0 ... 20 mA (3 wire)
0 ... 5 V, 0 ... 10 V
Accuracy of analog outputs ± 0.01 V / ±0.01 mA
Digital output RS485 (2-wire)
Alarm-level indication by analog signal user selectable
Purge information 5 V, 10 V, 20 mA or LED
Ref. B210750EN-C ©Vaisala 2010
This material is subject to copyright protection, with all
copyrights retained by Vaisala and its individual partners. All
rights reserved. Any logos and/or product names are trademarks
of Vaisala or its individual partners. The reproduction, transfer,
distribution or storage of information contained in this brochure
in any form without the prior written consent of Vaisala is strictly
prohibited. All specifications — technical included — are subject
to change without notice.
General
Sensor Vaisala DRYCAP
®
180U
Thin-film capacitive polymer sensor
Recommended calibration interval 2 years
Operating voltage with
RS485 output 11* ... 28 VDC
voltage output 15* ... 28 VDC
current output 21 ... 28 VDC
*For extended temp. down to -40 °C (-40 °F) or pressure up to
50 bar (725 psia), the supply voltage is 21 ... 28 VDC.
Supply current
normal measurement 20 mA + load current
during self-diagnostics max. 220 mA pulsed
Supply voltage fluctuation max. 0.3 V
External load for
voltage output min. 10 kOhm
current output max. 500 Ohm
Housing material (wetted parts) AISI316L
Stainless steel mesh filter AISI303, filter grade 18 µm
Mechanical connections
ISO G½”, NPT ½", UNF 3/4”- 16”
Housing classification IP65 (NEMA 4)
Storage temperature range -40 ... +80 °C (-40 ... +176 °F)
Weight (ISO G½”) 190 g (6.70 oz)
Complies with EMC standard EN61326-1, Electrical equipment for
measurement control and laboratory use - EMC requirements;
Industrial environment
Response time 63 % [90 %] at a gas temperature of +20 °C (+68 °F)
and pressure of 1 bar
-10 ... -80 °CTd 0.5 min [7.5 min]
-80 ... -10 °CTd 2 s [5 s]
PPM VOLUME CONCENTRATION
Measurement range (typical) 0 ... 500 ppm
Accuracy at +20 °C (+68 °F),
1013 mbar
±(0.2 ppm + 20 % of reading)
For more information, visit
www.vaisala.com or contact
us at sales@vaisala.com
76
2.99
Ø
29.5
1.16
Ø
12
0.47
32.5
1.28
120.5
4.74
G 1/2" ISO 228-1
Ø
33
1.
3
AW
30
1.18
Typical accuracy +5 °C Td
Not recommended for continuous measurement
Accuracy +2 °C Td
or better
Accuracy not specified
Dew point temperature (°C)
30
20
10
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
Temperature of measured gas (°C)
-10 -30 -20 -10 0 10 20 30 40 50 60 70
- HUMIDITY / DEW POINT / 1
- Vaisala – at your service 3
- Building Automation 5
- Cleanrooms and Chambers 5
- Humidity 7
- 37.5 (1.48) 9
- 78.5 (3.09) 9
- 98.5 (3.88) 9
- Ø 12 (0.47) 9
- 120 (4.72) 10
- 170 (6.69) 10
- 41 (1.61) 10
- Duct installation kit 11
- Temperature Transmitters 12
- Transmitter 15
- Indoor Applications 17
- Chambers 22
- Vaisala INTERCAP 23
- Humidity and Temperature 23
- Probe HMP60 23
- Vaisala HUMICAP 24
- Probe HMP110 24
- HMI41 Indicator and 26
- HMP46 High Temperature Probe 26
- Performance 29
- Interchangeable Probe 29
- Available Options 29
- Technical Data 30
- HMK15 Humidity Calibrator 31
- DTR500 Solar Radiation and 33
- Precipitation Shields 33
- The Vaisala HUMICAP 36
- Transmitter Series HMW80 37
- HVAC Applications 39
- WITH OPTIONAL CURRENT MODULE 40
- **0 … 20 mA (R 40
- 1/8"-27 NPT 41
- Ensure dry 43
- OEM Applications 46
- Transmitter Series for Oil 51
- Moisture in Oil 51
- Prevent it 53
- Transmitter for Oil 54
- 0 ... 2 % 57
- Demanding OEM Applications 59
- GMM111 Carbon Dioxide Module 60
- Demand-controlled Ventilation 62
- GMM20W Carbon Dioxide Module 65
- GML20 and GML20T 66
- Process Measurements 67
- Humidity and 68
- Measurement 68
- Environments 68
- Hazardous Areas 69
- PTU300 Models 70
- Barometric Pressure 70
- Reliable and accurate 72
- HVAC solutions 72
- Take the lab to the field 74
- Standard PTB330TS 75
- PTB210 Digital Barometer 76
- Wind Measurement 81
- Vaisala Service Oering 82
- Vaisala Service Offering 82
- Your Warranty 83
- PRICE LIST 84
- DMT132 Dewpoint Transmitter 85
- Datasheet – front 85
- Vaisala Filters 89
- Vaisala Filters continued 89
- Order Guides 90
- Note: The Universal AC 91
- For high temperatures 92
- For high humidities 93
- For wall mounting 95
- For general use 96
- With Two Standard Chambers 101
- For Pressurized Processes 103
- DMT345 Dewpoint Transmitter 104
- DMT152 Dewpoint Transmitter 105
- DMT242 Dewpoint Transmitte 106
- For pressurized pipelines 108
- GMT221 and GMT222 CO 109
- Transmitters 109
- OMT355 Oxygen Transmitter 110
- 1 Transmitter type 111
- (-40...+140 °F) 112
- (-4...+140 °F) 112
- (+32...+140 °F) 112
- Order Guide 114
- Features/Benefits 115
- Technical data 116
- 3 Cable length 1.0 m 117
- PTB110 Barometer 118
- WXT520 Weather Transmitter 119
- Vaisala Contact Information 121
- ACCURATE 122
- For more information, visit 123
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