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Optical gas sensor for CO2 measurements in Air
| Description and Application |
Universal HVAC applications. Sensor suitable in a measuring range from 0...2000 ppm to 0...25%. |
| Measuring Principle |
The carbon-dioxide-sensor operates at an infrared-optical base and uses the light-absorption of the CO2 in a narrow wave range of the infrared radiation. The gas-supply is effected via free convection. The sensor does not include any moving parts. |
| Standard Measuring Ranges |
Selectable: 0 to 25%, 0 to 5000ppm, 0 to 2.5%, 0 to 10%, other measuring ranges available on request |
| Accuracy after Calibration |
± 1% of final value |
| Linearity |
± 1% of final value |
| Resolution |
< 200ppm at 2,5%, better depending on measuring range: e.g., 50-100ppm at 5000ppm |
| Set Time t90 |
< 60s |
| Power Supply |
from ALMEMO® instruments |
| Current Consumption |
max. 70mA (typ. 50mA) |
| Temperature Coefficient |
Typ. -0.4%/°C (referring to 0,5% CO2) |
| Application Range |
+5 to +40°C, 0 to 95% RH not condensating |
| Dimensions |
90 x 30 x 36mm |
| Weight |
136 g |
| Optical Gas Sensor for CO2 measurements |
Order No. FY A600-CO2 |
 FY 9600-02
Oxygen-Sensor for O2 measurements in gases
| Description and Application |
Oxygen-sensor with screw-in thread for air-conditioning-plants, air-cleaner, oxygen-rectifiers, greenhouses, oxygen-incubators, breathing apparatus, artificial respiration instruments. |
| Measuring Principle |
The oxygen-sensor includes a lead-oxygen-cell, a lead-anode and a gold-cathode under use of a special acid-electrolyte. The oxygen-molecules of the gas-mixture exude through a non-porous Teflon-membrane into the electro-chemical cell and are there absorbed by the gold-electrode. The current flow between the electrodes is proportional to the oxygen-concentration in the gas-mixture to be measured. The signals are measured as voltage drop over the resistance and the Thermistor for the temperature compensation. The modification of the output-voltage is proportional to the concentration of the oxygen. |
| Measuring Range |
0 to 100% O2 |
| Output |
9 to 13 mV in air |
| Resolution |
0,01% O2 |
| Expected Operating Time |
2 years in 20,9% O2 |
| T99.5 Response Time |
< 40 seconds (equivalent to a change in concentration) from 20,9% O2 to 0,1% O2 |
| Linearity |
Linear 0 to 100% O2 |
| Baseline at 20°C |
< 20mV |
| Temperature Range |
-20 to 50°C |
| Pressure Range |
atmospheric ± 10% |
| Relative Humidity Range |
0 to 95% RH not condensating |
| Accuracy |
± 1% of O2 final value of measuring range |
| Cross Sensitivity |
< 0,01% O2 in balance with other gases |
| Resistivity/cr |
no influence by CO2, CO, N2S, NOX, N2O, H2 |
| Long Term Output Drift |
< 2% signal/month (typically < 5% over to 10 years) |
| Nominal Conditions |
20°C, 50% RH, 1013 mbar |
| Dimensions |
Ø 29,3mm, length 43mm, Ø of absorption-opening 10mm |
| Weight |
136 g |
| O2 Sensor for gases |
Order No. FY 9600-O2 |
| ALMEMO® Adapter Cable with 3,5mm Jack Connector |
Order No. ZA 9600-AK2 |
 FY A600-CO
Carbon monoxide sensor for CO measurements in air
| Description and Application |
In garages for measuring and warnings tested acc. VDI 2053. For air-quality-control reg. max. working-place concentration, e.g. in laboratories or motor-testing-stands. In house and large shelters for surveillance of air outside or protection-air. |
| Measuring Principle |
The sensor includes a chemical measuring cell into which the air to measure diffuses. At the electrode the H+ ions and the electrodes are used up in a cathode-reaction. The power generated between anode and cathode is directly proportional to the CO-concentration in the measured air. |
| Measuring Ranges |
0 to 300ppm CO or 0 to 5% CO (50000ppm) |
| Power Supply |
from ALMEMO® instruments |
| Zero Point Error |
< 10ppm CO |
| Gauge reading Balance |
< 3ppm CO |
| Accuracy |
± 1% of final value |
| Zero Point Drift |
< 2% (1 year) |
| Repeatability |
< 2% (1 year) |
| Set Time t90 |
< 60s |
| Transverse Sensibility |
< 2% by integrated sensor |
| Ambient Temperature |
-10 to +40°C, temperature compensated |
| Relative Humidity |
0 to 99% non-condensing |
| Durability |
About 2 years |
| Dimensions |
80mm Ø, 80mm high |
| Weight |
600 g |
| Carbon Monoxide Sensor for CO measurement in air (ind. meas. range) |
Order No. FY A600-CO |
 FY A640-02
Oxygen-sensor for O2 measurements in liquids
| Description and Application |
Oxygen-sensor with screw-in thread for air-conditioning-plants, air-cleaner, oxygen-rectifiers, greenhouses, oxygen-incubators, breathing apparatus, artificial respiration instruments. |
| Measuring Principle |
The oxygen-sensor includes a lead-oxygen-cell, a lead-anode and a gold-cathode under use of a special acid-electrolyte. The oxygen-molecules of the gas-mixture exude through a non-porous Teflon-membrane into the electro-chemical cell and are there absorbed by the gold-electrode. The current flow between the electrodes is proportional to the oxygen-concentration in the gas-mixture to be measured. The signals are measured as voltage drop over the resistance and the Thermistor for the temperature compensation. The modification of the output-voltage is proportional to the concentration of the oxygen. |
| Measuring Range |
0 to 100% O2 |
| Output |
9 to 13 mV in air |
| Resolution |
0,01% O2
|
| Expected Operating Time |
2 years in 20,9% O2 |
| T99.5 Response Time |
< 40 seconds (equivalent to a change in concentration) from 20,9% O2 to 0,1% O2 |
| Linearity |
Linear 0 to 100% O2 |
| Baseline at 20°C |
< 20mV |
| Temperature Range |
-20 to 50°C |
| Pressure Range |
atmospheric ± 10% |
| Relative Humidity Range |
0 to 95% RH not condensating |
| Accuracy |
± 1% of O2 final value of measuring range |
| Cross Sensitivity |
< 0,01% O2 in balance with other gases |
| Resistivity/cr |
no influence by CO2, CO, N2S, NOX, N2O, H2 |
| Long Term Output Drift |
< 2% signal/month (typically < 5% over to 10 years) |
| Nominal Conditions |
20°C, 50% RH, 1013 mbar |
| Dimensions |
Ø 29,3mm, length 43mm, Ø of absorption-opening 10mm |
| Weight |
136 g |
| O2 Sensor for gases |
Order No. FY 9600-O2 |
| ALMEMO® Adapter Cable with 3,5mm Jack Connector |
Order No. ZA 9600-AK2 |
Accessories, Oxygen-Sensor for O2 Measurements in Liquids
| Alignment set consisting of: Vessel for alignment of saturation, 26\5g sodium sulfide in 20ml PE-bottle for preparing the zero solution |
Order No. ZB 9640 AS |
| 20ml solution in PE-bottle for refilling the O2 sensor |
Order No. ZB 9640 NL |
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