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参数资料
| 型号： | HM1520LF |
| 厂商： | Measurement Specialties Inc/MEAS France |
| 文件页数： | 2/6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
ELECTRICAL CHARACTERISTICS
(Ta=23°C, Vs=5Vdc +/-5%, R L >1M
unless otherwise stated)
Humidity Characteristics
Symbol
Min
Typ
Max
Unit
Humidity Measuring Range / Ta -40 to 60°C
Relative Humidity Accuracy (1 to 20% RH) at 23°C
Relative Humidity Accuracy @55% RH at 23°C
RH
RH
RH
0
+/-2
+/-5
100
+/-3
%RH
%RH
%RH
Supply Voltage (regulated at 5Vdc*)
Nominal Output @10%RH (Ta = 25°C)
Current Consumption
Temperature Coefficient (10 to 50°C and 1 to 20% RH )
Vs
Vout
Ic
Tcc
4.75
1.17
5
1.24
1.4
- 0.05
5.25
1. 31
2
-0.1
Vdc
V
mA
%RH/°C
Humidity Average Sensitivity from 5% to 10%RH
Sink Current Capability (R L =33k )
Humidity Hysteresis
Time Constant (at 63% of signal, static) 5% to 10%RH
Warm Up Time (electronic)
Humidity Resolution
Long Term Stability
Output Impedance
? Vout/ ? RH
Is
τ
tw
Z
+26
150
0.4
0.5
70
150
+/-1
10
mV/%RH
μA
%RH
s
ms
%RH
%RH/yr
*Maximum power supply ramp up time to Vcc should be less than 4ms.
TYPICAL PERFORMANCE CURVES
HUMIDITY SENSOR
?
?
?
HM1520LF Preliminary Specification when used from 1 to 30% RH
Those equations can be used above 30% RH and allow to obtain an over all accuracy as described in page
4 of this document in all humidity measuring range.
Temperature (in the range 0 to 50°C) does not affec t HM1520LF measurement when used from 1% to 30%
RH. No temperature compensation is required.
HM1520LF HPC091_C
www.meas-spec.com
2/6
October 2012
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