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Electrochemical Ethylene Oxide Gas Sensor (C2H4O Sensor) - 7ETO CiTiceL

• Operating Principle: 3-electrode electrochemical
• Measurement Range: 0-20 ppm C2H4O
• Maximum Overload 100 ppm C2H4O
• Sensitivity: 2.25 ± 0.65 µA/ppm
• Response Time (T90): <140 Seconds at 20°C
• Resolution: 0.1 ppm
• Repeatability: 1% of signal
• Linearity: Linear
• Operating Temperature Range: -20°C to +50°C

  • Model Number: 7ETO CiTiceL
  • Data Sheet: Date Sheet File
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  • Electrochemical Ethylene Oxide Gas Sensor (C2H4O Sensor)
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Product Specification

7ETO CiTiceL Ethylene Oxide Sensor (C2H4O Sensor) Key Features & Benefits:
• Robust, industry standard 7-Series packaging
• Compact Size

7ETO CiTiceL Ethylene Oxide Sensor (C2H4O Sensor) Technical Specifications

MEASUREMENT
Operating Principle 3-electrode electrochemical
Measurement Range 0-20 ppm C2H4O
Maximum Overload 100 ppm C2H4O
Filter None
Sensitivity 2.25 ± 0.65 µA/ppm
Response Time (T90) <140 Seconds at 20°C
Baseline Offset (clean air) 0 to +1 ppm C2H4O equivalent
Zero Shift (-20°C to +40°C) < 2 ppm C2H4O equivalent
Resolution 0.1 ppm (when used with recommended electronics)
Repeatability 1% of signal
Linearity Linear
ELECTRICAL
Recommended Load Resistor 10 Ω
Bias Voltage +300 mV
MECHANICAL
Weight 17 g
Housing Material:
  Cap Polycarbonate
  Body ABS
Orientation Any
ENVIRONMENTAL
Operating Temperature Range -20°C to +50°C
Recommended Storage Temp 0°C to 20°C
Operating Pressure Range Atmospheric ± 10%
Operating Humidity Range 15 - 90% RH non-condensing
LIFETIME
Long Term Sensitivity Drift <5% signal loss/year
Expected Operating Life Two years in air
Storage Life 6 months in CTL container
Standard Warranty 12 months from date of despatch

* Specifications are valid at 20°C, 50% RH and 1013 mBar, using City Technology recommended circuitry. Performance characteristics outline the performance of sensors supplied within the first 3 months. Output signal can drift below the lower limit over time.

PART NUMBERS
7ETO is supplied without bias board. If a bias board is required with the sensor, 7BETO should be ordered.
Sensor Order Code
7ETO (without bias board) AT704-400
7BETO (with bias board) AT707-400

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