Datasheet

Data Sheet
Performance RED sensor
Characteristic
RED sensor
Symbol Typ Min Max Unit
Sensing resistance in air (see note 1) R
0
- 100 1500
kΩ
Typical CO detection range FS 1 1000 ppm
Sensitivity factor (see note 2) S
60
- 1.2 50 -
Performance OX sensor
Characteristic
OX sensor
Symbol Typ Min Max Unit
Sensing resistance in air (see note 1) R
0
- 0.8 20
kΩ
Typical NO
2
detection range FS 0.05 10 ppm
Sensitivity factor (see note 3) S
R
- 2 - -
MiCS-4514
0278 rev 16
Notes:
1. Sensing resistance in air R
0
is measured under controlled ambient conditions, i.e. synthetic air at 23
±5°C and 50 ± 10% RH for RED sensor and synthetic air at 23 ±5°C and ≤ 5% RH for OX sensor.
Sampling test.
2. Sensitivity factor is defined as Rs in air divided by Rs at 60 ppm CO. Test conditions are 23 ± 5°C and
50 ± 10% RH. Indicative values only. Sampling test.
3. Sensitivity factor is defined as Rs at 0.25 ppm NO
2
, divided by Rs in air. Test conditions are 23 ± 5°C
and ≤ 5% RH . Indicative values only. Sampling test.
IMPORTANT PRECAUTIONS:
Read the following instructions carefully before using the MiCS-4514 described here to avoid erroneous
readings and to prevent the device from permanent damage.
• The sensor must be reflow soldered in a neutral atmosphere, without soldering flux vapours.
• The sensor must not be exposed to high concentrations of organic solvents, silicone vapours or
cigarette-smoke in order to avoid poisoning the sensitive layer.
• Heater voltage above the specified maximum rating will destroy the sensor due to overheating.
• This sensor is to be placed in a filtered package that protects it against water and dust projections.
• SGX sensortech strongly recommends using ESD protection equipment to handle the sensor.
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