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Oxigraf - Model O2 and CO2 -Bioreactor Off-Gas Monitoring
Based on the Oxigraf Model O2Cap Oxygen and CO2 analyzer, the O2Bio is specifically designed to provide gas monitoring of Bioreactor headspace and off-gas streams. The unit will measure continuously from an off-gas vent or periodically via a gas sample valve to take small 10-15ml samples from the bioreactor headspace via keypad or digital interface control.
The O2Bio integrates an Oxigraf tunable diode laser (TDL) oxygen sensor and a non-dispersive infrared (NDIR) CO2 sensor with a pump regulated gas sampling system. The analyzer features a bright vacuum fluorescent alphanumeric display (VFD), touch panel keypad, a rear 0-1VDC analog BNC output for O2 readings, rear terminal strip with limit detection relays and 4 – 20 mA analog outputs of O2 and CO2 reading, and a RS232 digital interface.
- Internal Sampling Pump and Solenoid Sample Valve.
- Electronic flow meter and display.
- Calibration electronically using 10%O2/5% CO2 and 100% O2 calibration gases.
- Fast Response (< 1 sec) for prompt analysis.
- Pressure and temperature corrected.
- No false oxygen readings with Ar, H2O, CO2, CO, or hydrocarbons.
- Measures at low flows of 10 to 250 ml/min, conserving overlay gas or via Sample Valve.
- Relay contacts can be used to control external equipment.
- Relay contacts are Form C (SPDT), 5 A 250 VAC rating.
- Analog 4 to 20 mA, analog 0 to 1 VDC, and digital RS-232 outputs.
- Visual, audible, and remote alarms for Low O2, High O2, Low Flow and System Check.
