Signal output from 1 to 20% RH at 23°C :
RH(%)
Vout(mV)
RH(%)
Vout(mV)
1
2
3
4
5
6
7
8
9
10
1013 1038 1064 1089 1115 1141 1166 1192 1217 1243
11
12
13
14
15
16
17
18
19
20
1269 1294 1320 1346 1371 1397 1422 1448 1474 1499
With Vs = 5.0 Volts DC
Calibration data are
traceable to NIST
standards through CETIAT laboratory.
IMPORTANT NOTICE :
HM1520LF is based on HS1101LF capacitive sensor and thus
is fully useable on a large range of relative humidity ( 1 to 99% RH). In that range,
HM1520LF presents a typical accuracy of +/-5% RH at 55% RH.)
However HM1520LF is a dedicated module for humidity measurements at low Relative Humidity
levels.
Thus, HM1520LF is also well adapted to measure water concentrations (ppm) or low dew
points when associated with an ambient temperature probe.
HM1520LF features an optimized accuracy for
water concentration below 6000 ppm water or
0°C dew point at 23°C
(equivalent to 20% RH).
TYPICAL OUTPUT of HM1520LF when measuring
water concentration at ambient temperature of 23°C :
ppm
Vout(mV)
ppm
Vout(mV)
275
1013
3025
1269
550
1038
3300
1294
825
1064
3570
1320
1100
1089
3850
1346
1375
1115
4120
1371
1650
1141
4395
1397
1925
1166
4670
1422
2200
1192
4945
1448
2470
1217
5220
1474
2750
1243
5495
1499
ppm
water
= 10.75 V
out
- -10615
with V
out
in mVolts
TYPICAL OUTPUT of HM1520LF when measuring
dew point at ambient temperature of 23°C :
°C
Vout(mV)
°C
Vout(mV)
-36 -29 -24 -21
1013 1038 1064 1089
-9
-7.8 -6.8 -5.8
1269 1294 1320 1346
-18.5 -16 -14.5 -13
1115 1141 1166 1192
-4.9 -4.1 -3.2 -2.5
1371 1397 1422 1448
-11.5 -10
1217 1243
-1.6 -1.1
1474 1499
HPC091 Rev A January 2008
TECHNICAL 3 DATA
HM1520LF
HUMIREL [ Humirel ]
