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Electrochemical Hydrogen Chloride Gas Sensor (HCl Sensor) - 7HL CiTiceL

? Operating Principle: 3-electrode electrochemical
? Measurement Range: 0-50 ppm HCl
? Maximum Overload: 100 ppm HCl
? Filter: None
? Sensitivity: 0.75 ± 0.25 μA/ppm
? Response Time (T90): <120 Seconds at 20°C
? Resolution: 0.5 ppm
? Repeatability: 2% of signal
? Linearity: Linear

Model Number: 7HL CiTiceL
Data Sheet:

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Product Specification

7HL CiTiceL Hydrogen Chloride Sensor (HCl Sensor) Key Features & Benefits:
? Robust, industry standard 7-Series packaging
? Compact Size

7HL CiTiceL Hydrogen Chloride Sensor (HCl Sensor) Technical Specifications

MEASUREMENT
Operating Principle	3-electrode electrochemical
Measurement Range	0-50 ppm HCl
Maximum Overload	100 ppm HCl
Filter	None
Sensitivity*	0.75 ± 0.25 μA/ppm
Response Time (T90)*	<120 Seconds at 20°C
Baseline Offset (clean air)*	0 to +2 ppm HCl equivalent
Zero Shift (+20°C to +40°C)	< 4 ppm HCl equivalent
Resolution	0.5 ppm (when used with recommended electronics)
Repeatability	2% of signal
Linearity	Linear

ELECTRICAL
Recommended Load Resistor	33 ?
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	<2% signal loss/month
Expected Operating Life	Two years in air
Storage Life	6 months in CTL container

* 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.

Poisoning
CiTiceLs are designed for operation in a wide range of environments and harsh conditions. However, it is important that exposure to high concentrations of solvent vapours is avoided, both during storage, fitting into instruments and operation.

When using sensors with printed circuit boards (PCBs), degreasing agents should be used before the sensor is fitted. Do not glue directly on or near the CiTiceL as the solvent may cause crazing of the plastic.

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