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Based on the rugged HS1101LF capacitive humidity sensor, HM1500LF is a dedicated humidity transducer designed for OEM applications where a reliable and accurate measurement is needed. Direct interface with a micro-controller is made possible with the module's linear voltage output.
HM1500LF Probe Style Relative Humidity Sensor Module FEATURES
• Small size product
• Product free from Lead, Cr(6+), Cd and Hg
• Humidity calibrated within +/-2% @55%RH
• Typical 1 to 3.6 Volts DC output for 0 to 100 % RH at 5 V DC supply
• Ratiometric to voltage supply from 4.75Vdc to 5Vdc.
• Patented solid polymer structure
• Full interchangeability
• High reliability and long term stability
• Not affected by water immersion
• Very low temperature dependence
• Suitable for 3 to 10 Vdc supply voltage
Humidity Sensor Specfic Features
• Instantaneous de-saturation after long periods in saturation phase.
• Fast response time.
• Part could be washed with distilled water.
HM1500LF Probe Style Relative Humidity Sensor Module APPLICATIONS
• Industrial
• Process control
• …
HM1500LF Probe Style Relative Humidity Sensor Module PERFORMANCE SPECS
MAXIMUM RATINGS
Ratings |
Symbol |
Value |
Unit |
Storage Temperature |
Tstg |
-30 to 70 |
°C |
Storage Humidity |
RHstg |
0 to 100 |
% RH |
Supply Voltage (Peak) |
Vs |
10 |
Vdc |
Humidity Operating Range |
RH |
0 to 100 |
% RH |
Temperature Operating Range |
Ta |
-40 to 60 |
°C |
ELECTRICAL CHARACTERISTICS
(Ta=23°C, Vs=5Vdc +/-5%, RL>1MΩ unless otherwise stated)
Humidity Characteristics |
Symbol |
Min |
Typ |
Max |
Unit |
Humidity Measuring Range |
RH |
0 |
100 |
%RH |
|
Relative Humidity Accuracy (10 to 95% RH) |
RH |
+/-3 |
+/-5 |
%RH |
|
Supply Voltage (regulated at 5Vdc*) |
Vs |
5 |
Vdc |
||
Nominal Output @55%RH (at 5Vdc) |
Vout |
2.42 |
2.48 |
2.54 |
V |
Current consumption |
Ic |
1.4 |
2 |
mA |
|
Temperature Coefficient (10 to 50°C) |
Tcc |
- 0.05 |
-0.1 |
%RH/°C |
|
Average Sensitivity from 33% to 75%RH |
ΔVout/ΔRH |
+26 |
mV/%RH |
||
Sink Current Capability (RL=33kΩ) |
Is |
150 |
µA |
||
Humidity Hysteresis |
+/-1 |
%RH |
|||
| Time Constant (at 63% of signal, static) 33% to 75%RH |
τ |
10 |
s |
||
Warm up time (electronic) |
tw |
150 |
ms |
||
Humidity resolution |
0.4 |
%RH |
|||
Output Impedance |
Z |
70 |
Ω |
*Maximum power supply ramp up time to Vcc should be less than 4ms.
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