Vaisala DMT152 - Manual (Page 65)

Chapter 8 _____________________________________________________________ Technical Data
VAISALA ________________________________________________________________________ 63
CHAPTER 8
TECHNICAL DATA
This chapter provides the technical data of Dewpoint Transmitter
DMT152.
Measured Variables
Dewpoint temperature
Measurement range -80 … -10 °C (-112 … +14 °F) T
d
Accuracy
-80 … -30 °C (-112 … -22 °F) ± 2 °C (3.6 °F) T
d
-30 … -10 °C (-22 … +14 °F) ± 3 °C (5.4 °F) T
d
Non-calibrated range -100 … -80 °C, -10 … +20 °C
(-148 … -112 °F
,
+14 … +68 °F T
d
)
Response time 63% [90%] at +20 °C (+68 °F)
gas temperature and pressure of 1 bar
-10 ... -80 °C (+14 … -112 °F) T
d
0.5 min [7.5 min]
-80 ... -10 °C (-112 … +14 °F) T
d
2 s [5 s]
Analog output scalings
option 1 -80 ... +20 °C (-112 ... +68 °F) Td
option 2 -100 ... 0 °C (-148 ... +32 °F) Td
option 3 free scaling
ppm volume concentration
Measurement range 0 … 500 ppm
Accuracy at +20 °C (+68 °F),
1013 mbar
± (0.2 ppm + 20 % of reading)
0904-007-B
Figure 23 Accuracy Over Temperature Range
When dewpoint is below 0 °C, the transmitter outputs frostpoint for Td.