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.
