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DPT146 露点和压力变速器

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DPT146丰富了维萨拉公司所提供的多种压缩空气露点检测手段。这种全新的变送器汇集了维萨拉公司两种传感器技术方面的专长和特点。
  

 DPT146 露点和压力变速器
DPT146 露点和压力变速器

Dew point
Pressure, absolute
Temperature (available if output
RS-485 only selected)

-60 ... +30 °C (-76 ... +86 °F)
1 ... 10 bar (14.5 ... 145 psi)

-40 ... +80 °C (-40 ... +176 °F)

Calculated Parameters
-
ppm moisture, by volume
1 ... 40 000 ppm

Dew point, converted to
atmospheric pressure


-75 … +30 °C (-103 ... +86 °F)

Performance
-
Dew point accuracy
±2 °C (±3.6 °F)

Pressure accuracy at 23 °C (73.4 °F)
Pressure temperature dependence


±0.4 %FS

±0.1 %FS/10 °C (18 °F)

Temperature accuracy
-

    0 ... 40 °C (+32 ... +104 °F)
    -40...80 °C (-40 ... +176 °F)
PPM accuracy (7 bar)

±0.5 °C (± 0.9 °F)
±1 °C (± 1.8 °F)
±(14 ppm + 12% of reading)

Sensor response time:
    Pressure response time
    Dew point response time
    63% [90%] at 20°C and 1 bar
   -50 -> -10 °C Tdf
   -10 -> -50 °C Tdf      


< 1 s


5 s [ 10 s]
10 s [ 2.5 min]

​Operating Environment
​-

Operating temperature of electronics
Operating Pressure
Relative humidity

-40 … +60 °C
(-40 ... +140 °F)
0 … 50 bar (0…725 psi)
0...100 %

Outputs
​-

Analog Outputs (2 channels)
     current output
     voltage output
Accuracy of analog outputs
Digital output
Connector


0 … 20 mA, 4 … 20 mA
0 … 5V, 0 …10V
± 0.01 V / ± 0.01 mA
RS-485, non-isolated, Vaisala protocol
4-pin M8

General
​-

​Sensor 
Operating voltage




Supply current
during normal measurement
during self-diagnostics
External load for
current output
voltage output
Housing material
Housing classification
Mechanical connection
Recommended calibration interval
Weight (ISO1/2")

​Vaisala MPS1 multiparameter sensor
21 ... 28 VDC, current output
20 ... 28 VDC, voltage output and/or use
in cold temperatures (-40 ... -20 °C (-40 ... -4 °F))
15 ... 28 VDC, RS485 only

20 mA + load current
300 mA + load current

max. 500 Ohm
min. 10 kOhm
AISI316L
IP65 (NEMA4)
ISO G1/2”, NPT 1/2", UNF 3/4"-16
2 years

190 g (6.70 oz)

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