Vaisala HUMICAP DMT132, Руководство пользователя

Страница: 65 / 72

7. Technical Data
Table 9 Measurement Performance
Property Description/Value
Dew Point
Measurement range -30 ... +50 °C (-22 ... +122 °F) T
d
Accuracy at +20 °C (+68 °F)
±1 °C for -3 ... 20 °C (+26.6 ... +68 °F) T
d
1)
±2 °C for -15 ... -3 °C (+5 ... +26.6 °F) T
d
1)
See accuracy graph below
Typical Response Time at 20 °C (+68 °F) Gas Temperature and 1 Bar Pressure
-14
→
+3 °C (+7
→
+37 °F) T
d
17 s (63 %)
40 s (90 %)
+3
→
-14 °C (+37
→
+7 °F) T
d
33 s (63 %)
85 s (90 %)
Calculated Variables
Dew point converted to atmospheric pressure T
d/f
atm
1) When dew point is below 0 °C (+32 °F), the transmitter outputs frost point.
De
w poin
t t
emper
a
tur
e (°C)
0 20
20
0
10
30
-10
-20
-30
-10 10 30 40 50 60
Temperature of measured gas (°C)
50
40
60
Accuracy
±1 °C
Accuracy
±2 °C
-20
Acc
urac
y no
t specifie
d
Figure 28 Accuracy Over Temperature Range
Table 10 Operating Environment
Property Description/Value
Operating temperature -30 ... +50 °C (-22 ... +122 °F)
Chapter 7 – Technical Data
63