HM1500 Datasheet, PDF (1/4 Pages) Humirel – RELATIVE HUMIDITY MODULE

1 ^{TECHNICAL DATA}
RELATIVE HUMIDITY MODULE
HM 1500
Based on the rugged HS1101 capacitive humidity sensor, HM1500 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.
MAIN FEATURES
G Small size
G Not affected by water immersion
G Full interchangeability
G High reliability and long term stability
G Typical 1 to 4 Volt DC output for 0 to 100 % RH at 5 V DC supply
G Calibrated within +/- 2 % RH @ 55 % RH
G Very low temperature dependence
G Ratiometric to voltage supply within the specified range
G Suitable for 3 to 7 Volts supply voltage
HM 1500
HUMIDITY SENSOR SPECIFIC FEATURES
1
G Instantaneous de-saturation after long periods in saturation phase.
G Patented solid polymer structure.
G High resistance to chemicals.
G Fast response time.
2
MAXIMUM RATINGS
Ratings
Storage Temperature
Symbol
Value
Unit
Tstg
-30 to 70
°C
OPERATING RANGE
100
INTERMITTENT
OPERATION
75
Supply Voltage (Peak)
Vs
7
Vdc
50
Humidity Operating Range RH
0 to 100
% RH
25
Temperature Operating Range Ta
-30 to 60
°C
Peak conditions : less than 10% of the operational time.
0
-40
-20
0
20
40
60
80
AMBIENT TEMPERATURE IN °C
CHARACTERISTICS
(Ta = 23°C, Vs = 5Vdc, RL > 1MΩ otherwise stated)
Characteristics
Symbol
Min.
Typ.
Max.
Unit.
Humidity measuring range
Relative Humidity accuracy (10 to 95 % RH)
Voltage supply
Nominal output @ RH = 55 %
Current consumption
Temperature coefficient (10 to 50 °C )
Averaged Sensitivity from 33% to 75% RH
Sink current capability (R_L = 15 kΩ)
Recovery time after 150 hours of condensation
Humidity Hysteresis
Long term stability
Response time (33 to 76 % RH, static, @ 63 %)
Output impedance
RH
1
RH
Vs
4.75
Vout
2.42
Ic
Tcc
∆mV /% RH
Is
t
τ
Z
+/- 3
5.00
2.48
0.4
+ 0.1
+ 25
10
+/-1.5
0.5
10
70
99
% RH
+/- 5
% RH
5.25
V
2.54
V
0.8
mA
% RH/°C
mV /% RH
300
µA
s
% RH
% RH/yr
s
Ω
HPC009 Rev. H October 2001