Vaisala DPT146 Betriebsanweisung Seite 63

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Seitenansicht 62
Chapter 8 _____________________________________________________________ Technical Data
VAISALA ________________________________________________________________________ 61
CHAPTER 8
TECHNICAL DATA
This chapter provides the technical data of the DPT146.
Specifications
Table 13 Measured Parameters
Parameter
Measured Range
Dewpoint
-60 ... +30 °C (-76 ... +86 °F)
Pressure, absolute
1 ... 12 bar (14.5 ... 174 psi)
Temperature (RS-485 only)
-40 ... +80 °C (-40 ... +176 °F)
Table 14 Calculated Parameters
Parameter
Measured Range
ppm moisture, by volume
1 ... 40 000 ppm
Dewpoint, converted to atmospheric
pressure
-75 … +30 °C (-103 ... +86 °F)
Table 15 Performance
Property
Description / Value
Dewpoint accuracy
±2 °C (±3.6 °F), see Figure 24 on
page 62
Pressure accuracy at 23 °C (73.4 °F)
±0.04 %FS
Pressure temperature dependence
±0.01 bar/10 °C (18 °F)
Temperature accuracy
0 ... +40 °C (+32 ... +104 °F)
±0.5 °C (± 0.9 °F)
-40 ... +80 °C (-40 ... +176 °F)
±1 °C (± 1.8 °F)
ppm accuracy (7 bar)
±(14 ppm + 12 % of reading)
Sensor response time
Pressure response time
< 1 s
Dewpoint response time
63% [90%] at 20°C and 1 bar
-50 -> -10 °C Tdf
5 s [10 s]
-10 -> -50 °C Tdf
10 s [2.5 min]
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