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HC1000 PDF даташит

Спецификация HC1000 изготовлена ​​​​«Handling Instructions» и имеет функцию, называемую «High End Humidity Sensors».

Детали детали

Номер произв HC1000
Описание High End Humidity Sensors
Производители Handling Instructions
логотип Handling Instructions логотип 

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HC1000 Даташит, Описание, Даташиты
HC1000/ HC101
High End Humidity Sensors
Typical Applications
hand held instruments
data loggers
meteorology
HVAC
medical applications
Technical Data
Sensor
Nominal capacitance C76 (at 20 degC)
Sensitivity
Working range humidity
temperature
Linearity error (0 ... 98 %RH)
Hysteresis (at 70 %RH)
Response time t90
Temperature dependence [%RH / degC]
Long term stability at 20-30 degC /20-80 %RH
Loss tangent
Maximum supply voltage (no DC voltage)
Maximum DC voltage
Operating frequency
Material connection leads
Features
working range 0-100 %RH
linearity error < 1.5 %RH
wettable
long term stable
highest repeatability
good resistance to pollutants
HC1000
HC101
500 ± 50 pF
200 ± 20 pF
1.40 pF / %RH
0.56 pF / %RH
0 ... 100 %RH
-40 ... +120 degC
< ± 1.5 %RH
1.7 ± 0.15 %RH
< 6 sec.
RH = g * RH * (T - 20)
g = -0.003 ± 10 %
drift < 1 % / year
< 0.05 typical
5 V max (UPP)
<5 mV
10 ... 100 kHz, recommended 20kHz
phosphor bronze with tin/lead coating
Characteristics
The average increase of capacitance over the
working range is 140 pF for the HC1000 and
56 pF for the HC101. For the range of 0–98
%RH, linear approximation is possible, errors
will be lower than ± 1.5 %RH.
The sensor characteristic is described by the
following linear formula:
C(RH) = C76 * [1 + HK * (RH – 76)]
with HK = 2800 ± 120 ppm / %RH
550
(220)
500
(200)
450
(180)
400
(160)
350
(140)
relative humidity [%RH]
For high accuracy requirements, the sensitivity is described by the following polynom:
C(RH) = C76 * [1 + HK * (RH – 76)+K(RH)]
where:
K(RH) = A1*RH+A2*RH1.5+A3*RH2 +A4*RH2.5
A1=2.1159E-3
A2=-7.6305E-4
A3=8.9470E-5
A4=-3.4130E-6
HC1000/HC101









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HC1000 Даташит, Описание, Даташиты
Working Range
The working range for the humidity sensors
HC1000/HC101 is shown in terms of humidity /
temperature limits.
Although the sensors would not fail beyond the
limits, the specification is guaranteed only with-
in the working range.
In applications with high humidity at high tem-
perature the time factor shall be considered.
100
80
60
40
20
0
Dimensions (mm)
18.00
16.00
4.50
temperature [degC]
1.00
14.50
0.25
8.00
HC1000
15.5
5.5
HC101
HC1000/H
13.5
1.6
12.25
HC101/H
6.0
0.50
2.54
HC1000/L
Ordering Guide
MODEL
HC
TYPE
capacitive humidity sensor 500 pF
capacitive humidity sensor 500 pF with PC housing
capacitive humidity sensor 500 pF with PC housing for direct PCB mounting
capacitive humidity sensor 200 pF
capacitive humidity sensor 200 pF with PC housing for direct PCB mounting
HC
(1000)
(1000/H)
(1000/L)
(101)
(101/H)
HC1000/HC101









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HC1000 Даташит, Описание, Даташиты
Handling Instructions
Cleaning
If necessary, the HC sensors can be cleaned by shaking them in pure isopropylalcohol, industrial
grade. Do not touch or rub the sensor surface. After cleaning with isopropylalcohol, immerse them
in water and let them dry.
Test Circuitr y
This test circuitry is in fact an oscillator. Changes of the sensor capacitance modify the frequency
of the output signal. The operating frequency can be selected by the R11) resistor (trimmer).
For example, an operating frequency of appr. 50kHz at 76 %RH can be set with the following val-
ues of R1:
HC101
HC103
HC104
HC200
HC1000
R1=appr. 56kΩ...68k
R1=appr. 68k
R1=appr. 51k...75k
R1=appr. 22k...27k
C1
22nF...100nF
R1
R2
³ 4.7M
Cs
48
2
6
1
Uout
3
+5V
OUT
1) Please note that the exact value of R1 depends on the tolerances of Humidity Sensors, the PCB Layout, and the TLC555 tolerances.
Calibration
Each sensor is tested at reference conditions for humidity. The calibration point for the humidity cir-
cuitry should be chosen according to the application and typical operation range. If the circuitry has
no linearisation we recommend calibration at 33 and 76%. High humidity levels should not be
chosen, as wetting of the element can cause misreadings during the calibration procedure.
For reliable check the E+E special calibration set is available. (refer to data for „calibra-
tion set“)
As a professional alternative for check and calibration we recommend the use of the E+E
high accuracy humidity generator HUMOR10/10S.
(refer to data for „HUMOR10/10S“)
Handling Instructions










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Номер в каталогеОписаниеПроизводители
HC1000High End Humidity SensorsHandling Instructions
Handling Instructions
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