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MiCS-2610 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - O3 Sensor - e2v

भाग संख्या MiCS-2610
समारोह O3 Sensor
मैन्युफैक्चरर्स e2v 
लोगो e2v लोगो 
पूर्व दर्शन
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MiCS-2610 pdf
MEASUREMENT CIRCUIT
Fig. 2 shows the pin connections of the MiCS-2610 ozone
sensor. A simple circuit to measure the O3 concentration is
proposed in Fig. 3. The heating voltage VH is applied to pins
3 and 1. A load resistor RL is connected in series with RS to
convert the resistance RS to a voltage VS between pins 2
and 4. RS can then be calculated by the following
expression:
RS = RL /(VCC - VS) x VS
32
RH RS
41
Pin Connection
1 Heater ground
2 Sensor pin
3 Heater power
4 Sensor pin
Fig. 2: Equivalent circuit of MiCS-2610 (top view)
Gas VCC
Sensor
32
32
VH 4411
RL
VS
GND
Fig. 3: Measurement circuit for O3 detection
ELECTRICAL SPECIFICATIONS
Maximum Ratings
Rating
Maximum sensor supply
voltage
Maximum heater power
dissipation (see note 1)
Maximum sensor power
dissipation
Relative humidity range
Ambient operating
temperature
Storage temperature range
(see note 2)
Storage humidity range
Symbol
VCC
PH
PS
RH
Tamb
Tsto
RHsto
Value/
Range
5
95
1
5 95
-40 70
-40 50
5 95
Unit
V
mW
mW
%RH
°C
°C
%RH
Operating Conditions
Parameter
Heating power
(see note 3)
Heating voltage
Heating current
Heating resistance
(see note 4)
Symbol
PH
VH
IH
RH
Typ Min Max Unit
80 66 95 mW
2.35 -
34 -
-V
- mA
68 58 78 Ω
Sensitivity Characteristics
Characteristic
O3 detection range
Sensing resistance
in air
Sensitivity factor
(see note 5)
Symbol Typ Min Max Unit
FS 10 1000 ppb
R0 11 3 60 kΩ
SR
2 1.5 4
-
Notes:
1. Heating powers above 95 mW can cause permanent
damage to the sensor due to overheating.
2. Storage of parts in original shipping package.
3. To ensure a correct operating temperature, the heater
voltage should be ajusted so that the resulting heating
power equals 80 mW. Lower heating power will reduce
the sensitivity and increase the response time. Heating
powers above 95 mW can cause permanent damage to
the sensor due to overheating.
4. Heating resistor values from sensors out of production
range between 58 and 78 Ω measured at VH = 2.35 V.
Due to material properties of the heating resistor its
value increases during operating life.
5. Sensitivity factor SR is defined as RS at 100 ppb of O3
divided by RS at 50 ppb of O3. Test conditions are 50 ±
5% RH and 25 ± 2 °C.
© e2v technologies (uk) limited 2008
Document subject to disclaimer on page 1
A1A-MiCS-2610 Version 2, page 2

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डाउनलोड[ MiCS-2610 Datasheet.PDF ]


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