Technical Data - Vaisala DPT145 Quick Manual

QUICK GUIDE ____________________________________________________________________

Technical Data

16 __________________________________________________________________ M211369EN-B
Measured Parameters
Parameter
Dewpoint
Pressure, absolute
Temperature
Calculated Parameters
Parameter
Pressure, normalized to 20 °C (68 °F)
SF or SF /N mixture density
6 6 2
ppm moisture, by volume
Dewpoint, converted to atmospheric
pressure
Performance
Property
Dewpoint accuracy
Dewpoint stability
Pressure accuracy at 23 °C (73.4 °F)
Pressure temperature dependence
Temperature accuracy
0 ... +40 °C (+32 ... +104 °F)
-40 ... +80 °C (-40 ... +176 °F)
Density accuracy (pure SF
0 ... 40 °C (+32 ... +104 °F)
-40 ... +60 °C (-40 ... +140 °F)
ppm accuracy, typical
(5 ... 1000 ppm, 7 bar)
Sensor response time
Pressure response time
Dewpoint response time*
63% [90%] at 20°C and 1 bar
-50 -> -10 °C Tdf
-10 -> -50 °C Tdf
* system equilibrium related response
time is typically longer
Measured Range
-50 ... +30 °C (-58 ... +86 °F)
1 ... 10 bar (14.5 ... 145 psi)
-40 ... +80 °C (-40 ... +176 °F)
Measured Range
1 ... 12 bara (14.5...174 psia)
0 ... 100 kg/m
40 ... 40 000 ppm
-65 ... +30 °C (-85 ... +86 °F)
Description / Value
±3 °C (±5.4 °F), see graph on
next page.
typical drift < 2 °C (3.6 °F)/5a
±0.4 %FS
±0.1 % FS/10 °C (18 °F)
±0.5 °C (± 0.9 °F)
±1 °C (± 1.8 °F)
, 1 ... 10 bara)
6
±1 %FS
±2.2 %
±(7 ppm + 15 % of reading)
< 1 s
5 s [10 s]
10 s [2.5 min]
3