产品介绍
7OX-V CiTiceL®
Performance Characteristics Physical Characteristics
Nominal Range Max OverloadExpected Operating Life
Output Signal
0-25% Oxygen
30% Oxygen Two years in air
0.195 - 0.25mA in air
Storage Life Recommended Storage
Temperature
Warranty Period
Six months in CTL container 0-20°C
24 months from date of despatch
(This amounts to a variation of condition
T95
Response Time
£15 seconds
6 of our standard terms and conditions which otherwise apply)
Offset (3mins N2) Temperature Range Temperature Coefficient Absolute Pressure Range
Differential Pressure
Range Pressure Coefficient
Operating Humidity
intermittent
<0.5% O2
-20°C to +50°C
0.2% signal/°C
Atmospheric ± 10% 0 to 40mBar max
<0.02% signal/mBar
0 to 99% RH non-condensing
N.B. All performance data is based on conditions at 20°C, 50%RH, and 1013mBar
continuous Long Term Output Drift
Recommended Load
Resistor
Doc. Ref.: 7oxv Issue 1.2
15 to 99% RH non-condensing
<5% signal loss/year 100W
Performance Characteristics Physical Characteristics
Nominal Range Max Overload
Expected Operating Life
Output Signal
0-25% Oxygen
30% Oxygen Two years in air
0.195 - 0.25mA in air
Storage Life Recommended Storage
Temperature
Warranty Period
Six months in CTL container 0-20°C
24 months from date of despatch
(This amounts to a variation of condition
T95
Response Time
£15 seconds
6 of our standard terms and conditions which otherwise apply)
Offset (3mins N2) Temperature Range Temperature Coefficient Absolute Pressure Range
Differential Pressure
Range Pressure Coefficient
Operating Humidity
intermittent
<0.5% O2
-20°C to +50°C
0.2% signal/°C
Atmospheric ± 10% 0 to 40mBar max
<0.02% signal/mBar
0 to 99% RH non-condensing
N.B. All performance data is based on conditions at 20°C, 50%RH, and 1013mBar
continuous Long Term Output Drift
Recommended Load
Resistor
Doc. Ref.: 7oxv Issue 1.2
15 to 99% RH non-condensing
<5% signal loss/year 100W
Page 1 of 2 19th October 2004
Temperature Behaviour
1) Gradual changes
The output of a 7OX-V CiTiceL varies slightly with gradual temperature changes. The behaviour of a batch of 7OX-V sensors is shown opposite. Output was measured at a range of temperatures and expressed as a percentage of the signal at 20°C. The graph shows the mean signal and three times standard deviation.
2) Sharp fluctuations
A transient response will occur with sharp fluctuations in temperature. For rapid increases in temperature there is a sharp drop in sensor output, and a sharp increase in output for rapid decreases. These responses are transient and should die away in about 20 seconds.
Linearity
The output signal of an Oxygen CiTiceL follows the relationship: S = K loge 1/(1-C)
where:
S = Output signal;
C= Fractional oxygen concentration; K = a constant for the sensor.
For most applications the deviation from a linear response will be insignificant, and no compensation needed. For example, the graph below shows the output of a sensor calibrated in air (20.9% O2). In this case the maximum error in the 0-25% range is »0.5% at around 10% O2.
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