Vaisala HUMICAP MMT330 Guide de l'utilisateur Page 161

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Chapter 9 _____________________________________________________________ Technical Data
VAISALA _______________________________________________________________________ 159
CHAPTER 9
TECHNICAL DATA
This chapter provides the technical data of the product.
Specifications
Performance
Water Activity
Water activity
Measurement range 0 ... 1 a
w
Accuracy (including non-linearity, hysteresis and repeatability)
0 ... 0.9 ±0.02
0.9 ... 1.0 ±0.03
Response time (90%) at +20 °C
in still oil (with stainless steel filter) 10 min.
Sensor HUMICAP
®
Temperature
Measurement range
MMT332 -40 ... +180 °C (-40 ... +356 °F)
MMT337 -40 ... +180 °C (-40 ... +356 °F)
MMT338 -40 ... +180 °C (-40 ... +356 °F)
Temperature sensor Pt100 RTD Class F0.1 IEC 60751
Accuracy at +20 °C (+68 °F) ± 0.2 °C
Accuracy over temperature range (see graph below):
0507-021
Figure 72 Accuracy over Temperature Range
D
°C
°C
-0.7
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-0.1
-0.2
-0.3
-0.4
-0.5
-0.6
0
0-60 -40 -20 20 40 60 80 100
120
140
160
180
-80
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