9
G
HYGRASREG
®
AFTF-35
Rev. Data - V20
TECHNICAL DATA
(continued)
FUNCTION
A constant overtemperature of the humidity sensor makes its dewing considerably
more difficult or prevents its formation within the limits of the system.
A faster reaction speed is achieved in the case of humidity fluctuations, even in the
range above 95 % RH. The sensor (combined humidity and temperature measuring
element) is heated approx. 3 K above the ambient temperature. The actual relative
humidity is determined from the measured relative humidity at overtemperature,
the chip temperature of the sensor and the ambient temperature (via a second,
separate temperature measuring element).
ACCESSORIES
see table
Type ⁄ WG01
Measuring Range
Humidity
Temperature
Output
Output
Display
active
switching
Item No.
AFTF-35 - I
I variant
A F T F - 35 -I / W
0
...
100 % RH
0...20 g/m
3
(a.F.)
0...25 g/m
3
(a.F.)
0...20 g/kg (MV)
0...25 g/kg (MV)
0...+50 °C (TP)
–20...+50 °C (TP)
–30...+30 °C (FKT)
–20...+50 °C (FKT)
0
...
+50 °C
–20...+50 °C
–20...+80 °C
0...+100 °C
3x
4...20 mA
1x Changeover
contact
1201-714B-1000-000
A F T F - 35 -I / W
LCD
(as above)
(as above)
3x
4...20 mA
1x Changeover
contact
■
1201-714B-1200-000
AFTF-35 - U
U variant
A F T F - 35 -U / W
(as above)
(as above)
3x
0 -10 V
1x Changeover
contact
1201-714A-1000-000
A F T F - 35 -U / W
LCD
(as above)
(as above)
3x
0 -10 V
1x Changeover
contact
■
1201-714A-1200-000
Note
Alternative
parameters
are calculated internally from the measured variables,
which are retrievable via the active output
OUT3
:
absolute humidity, mixing ratio, dew point and wet bulb temperature
(can be changed via DIP switch)
ACCESSORIES
SF-M
Metal
sinter filter, Ø 16 mm, L = 32 mm, exchangeable
stainless steel
V4A
(1.4404)
7000-0050-2200-100
WS-03
Weather and sun protection hood
, 200 x 180 x 150 mm,
stainless steel
V2A
(1.4301)
7100-0040-6000-000
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