HM1520 Datasheet, PDF (1/4 Pages) Humirel – RELATIVE HUMIDITY MODULE

PRELIMINARY DATA SHEET
TECHNICAL DATA
RELATIVE HUMIDITY MODULE
HM1520
Based on the rugged HS1101 humidity sensor, HM1520 is a dedicated humidity transducer
designed for measurements at low humidity. Direct measurement of dew point or water
concentration can be easily obtained in really cost effective conditions. Direct interface with a
micro-controller is made possible with the module’s linear voltage output.
Main features
• Tubular form for through wall mounting.
• Not affected by water condensation
• Full interchangeability.
• Typical 1 to 1.6 Volt DC output for 0 to 20% RH at 5 V DC supply.
• Calibrated, linear voltage for easy electronic interface.
• Controlled temperature dependency
• Ratiometric to voltage supply
Humidity sensor specific features
• No affected by long period at low humidity values.
• Patented solid polymer structure.
• High resistance to chemicals.
• Fast response time.
Maximum ratings
Ratings
Supply Voltage (Peak)
Operating Range (see graph below)
Operating Range (Dew Point)
Operating Range in Temperature
Symbol
Vs
RH
Td
Ta
Value
12
0 to 100
-50 to 30
-30 to 60
Unit
Vdc
% RH
°C
°C
10,0
8,0
6,0
4,0
2,0
0,0
0
-2,0
-4,0
-6,0
-8,0
-10,0
Accuracy of HM1520 when used from 1 to 95% RH
Optimized
accuracy
range
10
20
+/- 3 to 5% RH
accuracy range
30
40
50
+/- 5 to 10% RH
accuracy range
60
70
80
90
Relative Humidity in % Rh
100
Humirel Sensor Device Data / HPC009-20 RevA December 2000
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