M
EASUREMENT
C
ONDITIONS
4000
HM1500LF is specified for accurate
measurements within 10% RH to 95%RH.
Excursion out of this range
(< 10% or > 95% RH,including condensation)
does not affect the reliability of HM1500LF
Characteristics.
Dedicated HM15XX Products are available
for extreme RH Conditions (as HM1520 for low
Dew points) Consult HUMIREL for further
information.
Vout mV
3500
3000
2500
2000
1500
1000
0
10
20
30
40
50
60
70
80
90
100
Relative humidity %RH
M ET R OLG Y
HM 152 0 LF R A N G E
METROLGY
HM1500LF RANGE
M
ODELED SIGNAL OUTPUT
4000
Output voltage (mV)
3500
3000
2500
2000
1500
1000
0
10
20
30
40
50
60
70
80
90
100
Relative Humidity (%RH)
Reference Output Values
RH (%)
10
15
20
25
30
35
40
45
50
Vout (mV)
1325
1465
1600
1735
1860
1990
2110
2235
2360
RH (%)
55
60
65
70
75
80
85
90
95
Vout (mV)
2480
2605
2730
2860
2990
3125
3260
3405
3555
LINEAR EQUATION:
(with V
out
in mV and RH in %)
V
out
=25.68RH+1079
RH = 0.03892 V
out
- 42.017
POLYNOMIAL EQUATION:
(with V
out
in mV and RH in %)
V
out
= 9E
-4
RH
3
-1.3E
-1
RH
2
+30.815RH+1030
RH= -1,91E-09 V
out 3
+ 1,33E-05 V
out 2
+ 9,56E-03 V
out
- 2,16E+01
E
RROR BUDGET at 23°C
T
EMPERATURE COMPENSATION
RH
compensated
= RH
actual at T
+ (T-23)*(0.05)
T: Temperature °C / RH: Relative humidity in %
HPC062 Rev B April 2005
TECHNICAL 2 DATA
HM1500LF
HUMIREL [ Humirel ]
