Sturdy sensor for test measurements and stationary applications up to +80 °C
FHA6461C
Capacitive humidity sensor Type
● Sturdy sensor for
test measurements and stationary
applications up to +80 °C
● Sensor tube
made of stainless steel
● Active compensation
of humidity measurement by means of the integrated temperature sensor (new
measuring range
for all ALMEMO® devices with effect from 2003)
● Wide range of operating temperatures
● Intelligent
ALMEMO® extension cables, up to 100 meters
Accessories :
ZB9600W
Brackets for wall mounting, distance
from wall approx. 40 mm
ZB9600KV
Movable aluminum screw connection with Teflon sealing
ring
ZB9600F
Connecting flange for screw connection, hole circle
38 mm Ø
ZA9060VK2
Extension cable, 2 meters long
ZA9060VK4
Extension cable, 4 meters long
ZA9060VKC5
Intelligent extension cable, 5 meters long
ZA9060VKC10
Intelligent extension cable, 10 meters long
ZA9060VKC20
Intelligent extension cable, 20 meters long
ZA9060VKC30
Intelligent extension cable, 30 meters long
ZA9060VKC50
Intelligent extension cable, 50 meters long
ZA9060VKC100
Intelligent extension cable, 100 meters long
Technical data :
Operative range: FHA646-1C
-20 to +80 °C/ 5...98 % r.H.
Humidity measuring circuit
Measuring range :
0 to 100 % r.H.
Sensor :
capacitive
Accuracy :
± 2 % r.H. at nominal temperature
Reproducibility :
<1 % r.H. at nominal temperature</font>
Nominal temperature :
+25 ± 3 °C
Sensor operating pressure :
atmospheric pressure
Response time T90 :
approx. 10 seconds
(without filter) at 5 m/s
Temperature measuring circuit
Sensor :
NTC type N
Accuracy :
-20 to 0°C: ±0,4°C
0 to 70°C: ±0,1°C
70 to 80°C: ±0,6°C
Reproducibility :
0,1°C
Mechanical design
Sensor tube :
FHA646-1C :
diameter 12 mm
stainless steel, 160 mm long
Protective cap :
SK7, metal-mesh filter
Cable :
1.5 meters long,
with ALMEMO® connector
Types :
FHA6461C
Humidity sensor with
stainless steel tube, active temperature compensation, -20 to +80
°
FHA646-1x/-KxC/-2x/-7/-5x/-WG Protective caps for capacitive humidity
sensors Type
Dimensions : length approx. 33 mm, diameter 12 mm
Types :
Type
Designation
Pore-
size
Maximum
temperature
Typical Application
SK7
ZB9600SK7
Metal-mesh filter in
PC-housing
100 μm
120°C
Universal, for medium,
contamination, also high humidity
SK6
ZB9600SK6
PTFE-Sinterfilter
50 μm
180°C
High chemical resistance
SK8
ZB9600SK8
Stainless steel
sinter filter
10 μm
180°C
For severe mechanical stress,
heavy contamination,
strong air flow
Brackets for wall mounting
Movable
screw connection
ZB9600W
Brackets for wall
mounting, distance from
wall approx. 40 mm
ZB9600KV
Movable aluminum screw connection
with Teflon sealing ring
ZB9600F
Connecting flange for screw connection,
hole circle 38 mm Ø
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