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参数资料
| 型号： | HM1520LF |
| 厂商： | Measurement Specialties Inc/MEAS France |
| 文件页数： | 3/6页 |
| 文件大小： | 0K |
| 描述： | SENSOR RH DEDICATED HUMIDITY |
| 标准包装： | 25 |
| 传感器类型： | 电容性 |
| 湿度范围： | 0 ~ 100% 相对湿度 |
| 工作温度： | -40°C ~ 60°C |
| 灵敏度： | 26mV/%RH |
| 精确度： | ±5% @ 55% RH@23°C |
| 响应时间： | 10s（33 ~ 75% RH） |
| 输出： | 1.24V @10% RH |
| 电源电压： | 4.75 V ~ 5.25 V |
HM1520LF – Relative Humidity Module
?
Signal output from 1% to 20% RH at 23°C
RH (%)
Vout (mV)
RH (%)
Vout (mV)
1
1013
11
1269
2
1038
12
1294
3
1064
13
1320
4
1089
14
1346
5
1115
15
1371
6
1141
16
1397
7
1166
17
1422
8
1192
18
1448
9
1217
19
1474
10
1243
20
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 mV
?
Typical Output of HM1520LF when measuring dew point at ambient temperature of 23°C
DP (°C)
Vout (mV)
DP (°C)
Vout (mV)
-36
1013
-9
1269
-29
1038
-7.8
1294
-24
1064
-6.8
1320
-21
1089
-5.8
1346
-18.5
1115
-4.9
1371
-16
1141
-4.1
1397
-14.5
1166
-3.2
1422
-13
1192
-2.5
1448
-11.5
1217
-1.6
1474
- 10
1243
-1.1
1499
HM1520LF HPC091_C
www.meas-spec.com
3/6
October 2012
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