Humidity Sensor
!
Reference Output Values (Vcc = 5V)
In Pulsed Mode (5%)
%& '
10
15
20
25
30
35
40
45
50
"
% ('
2970
3230
3480
3725
3965
4200
4425
4645
4860
%& '
55
60
65
70
75
80
85
90
95
"
% ('
5075
5280
5485
5690
5885
6085
6280
6475
6670
%& '
10
15
20
25
30
35
40
45
50
"
#
$
Reference Output Values (Vcc = 5V)
In Continuous Mode
"
% ('
2950
3195
3435
3670
3900
4125
4345
4550
4750
%& '
55
60
65
70
75
80
85
90
95
"
% ('
4960
5150
5345
5545
5725
5915
6105
6285
6465
F
out
= 6.39E
-4
RH
3
- 1.828E
-1
RH
2
+ 56.29 RH + 2424
RH = -8.97E
-11
F
out3
+ 2.318E
-6
F
out2
+ 7.19E
-3
F
out
- 29.38
with F
out
in Hz and RH in %
F
out
= 43.15 RH + 2647
RH = 0.0231 F
out
– 61.12
with F
out
in Hz and RH in %
POLYNOMIAL EQUATION
F
out
= 6.03E
-4
RH
3
- 1.77E
-1
RH
2
+ 53.97 RH + 2425
RH = -9.07E
-11
F
out3
+ 2.47E
-6
F
out2
+ 7.20E
-3
F
out
- 30.30
with F
out
in Hz and RH in %
F
out
= 41.05 RH + 2646
RH = 0.0243 F
out
- 64.19
with F
out
in Hz and RH in %
POLYNOMIAL EQUATION
LINEAR EQUATION
LINEAR EQUATION
"
#
$
Reference Output Values (Vcc = 3.3V)
In any power mode
%& '
10
15
20
25
30
35
40
45
50
"
% ('
3270
3460
3650
3845
4035
4225
4410
4595
4780
%& '
55
60
65
70
75
80
85
90
95
"
% ('
4960
5140
5320
5495
5670
5840
6010
6180
6345
F
out
= -2E
-5
RH
3
- 0.033RH
2
+ 39.94RH + 2867
RH = 5.7E
-11
F
out3
+ 7.4E
-8
F
out2
+ 2.42E
-2
F
out
– 70.10
with F
out
in Hz and RH in %
F
out
= 36.18 RH + 2867
RH = 0.02755 F
out
– 80.97
with F
out
in Hz and RH in %
POLYNOMIAL EQUATION
LINEAR EQUATION
________________________________________________________________________________________
Humirel HTG3400 Series Datasheet / HPC124 Rev A November 2007
4
HUMIREL [ Humirel ]
