Description
This Luer Lock adapter is equipped with a miniaturized CO2 Sensor Spot type CD1 (measurement range 1 – 25 % CO2 / 8 – 190 mmHg pCO2). A polymer optical fiber is attached to the Sensor Stick and connects it to a small benchtop CO2 meter or OEM board. This way continuous, non-invasive CO2 measurements can be performed. The CO2 Sensor Stick is delivered irradiated and can easily be integrated in customer specific flow-through cells or experimental set-ups via Luer connectors. The SST-CD1-308-S-SB is independent of flow velocity or electromagnetic fields and due to its small size, it can be implemented in many set-ups where other measurement equipment simply does not fit. As it is delivered in a squeeze bag with saline solution the sensor is pre-wetted and ready for measurements.
| Measurement range | 1 – 25 % CO2 at atmospheric pressure (1013.5 hPa) 10 – 250 hPa pCO2 8 – 190 mmHg pCO2 |
| Resolution at 37 ºC | ±0.06 % at 2 % CO2, ±0.15 % at 5 % CO2 ±0.5 mmHg at 15mmHg pCO2, ±0.12 mmHg at 38 mmHg pCO2 |
| Accuracy | After multipoint-calibration and 1-point adjustment at 5 % CO2: ± 5 % of reading or 0.2 %; whichever is higher After sensor batch-calibration and 1-point adjustment at 5% CO2: ± 10 % of reading or 0.3 %; whichever is higher** |
| Drift at 37 ºC | < 0.3 % pCO2 per day (4 sec. measurement interval at 5 % pCO2) |
| Measurement temperature range | From + 15 ºC to + 45 ºC |
| Response time (t90) at 20 ºC | < 6 min. for change from 5 % to 10 % (38 mmHg to 76 mmHg) pCO2 |
| Properties | |
| Compatibility | Aqueous solutions, pH 4 – 9 |
| Cross-sensitivity | Optical pCO2 sensors display cross-sensitivity to osmolality; acidic or alkaline gases (e.g. acetic acid, ammonia) |
| Stability | Optical pCO2 sensors do not stand: organic solvents, pH above 10 or below 4 |
| Cleaning procedure | No cleaning; single-use product |
| Calibration | Pre-calibrated for 20 °C, 37 °C and physiological osmolality; re-calibration is possible, 1-point adjustment is advised for accurate measurements (at ≥ 2 % CO2 (for optimal results ≥ 5 % CO2)) |
| Storage stability | 18 months provided the sensor is stored in the dark in its original package at room temperature |
| Irradiation | Gamma-irradiated > 25kGy |
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*provided the SST-CD1-308-S-SB is used without further handling in aqueous solutions with physiologial osmolality |
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