Medical gases are regulated by the United States Pharmacopoeia (USP), European Pharmacopoeia (EP) and Japanese Pharmacopoeia (JP) that sets standards for all medical gases including those that address quality, strength, purity, packaging, labeling, and identification. HORIBA contributes in this field by providing a wide range of analysis and measurement solutions with high accuracy.
The medical gases used in a hospital are life-supporting element that gives direct influence on maintaining the life of patients. Therefore, at the sections where the medical gases are used, the medical gas must be clean and highly pure. For the European Pharmacopoeia, the analytical methods and the concentration are strictly addressed in the guideline.
Figure 1: Medical oxygen gas standards (Prepared with reference to EIGA documents)
Medical oxygen is usually produced by the air separation plant. Air separation plant separates atmospheric air into its primary components oxygen (O2), nitrogen (N2), and argon (Ar) by distillation at cryogenic temperatures. Separation of air is performed in the distillation unit using the difference in the boiling points of each constituent gas. Produced in ASU medical gas is distributed to its users in gas cylinder truck. Quality assurance process is conducted before distribution to ensure, if the oxygen product meets the required standard and its expectations.
Figure 2: Air Separation Plant (*Images are for illustrative purposes only)
Lineup | High Sensitivity Type | Standard Type | Type without Carrier Gas |
|---|---|---|---|
Model | VA-5003RH | VA-5003R | VA-5006R |
Measurement principle | Magneto-pneumatic method
| Magneto-pneumatic method
| Paramagnetic (Dumbbell) method
|
Installation | Benchtop, 19-inch panel | Benchtop, 19-inch panel | Benchtop, 19-inch panel |
Measurement range | 0-1 vol%, 0-100 vol%, 99-100 vol% etc. | 0-5 vol%, 0-100 vol%, 98-100 vol% etc. | 0-10 vol%, 0-100 vol%, 98-100 vol% etc. |
| Repeatability*1 | ±0.005 vol%/Measured value (99-100 vol% analyzer) | ±0.05 vol%/Measured value (98-100 vol% analyzer) | ±0.01 vol%/Measured value (98-100 vol% analyzer) |
| Response time | 30 sec or less (T90) (Can be changed from setting) | 30 sec or less (T90) (Can be changed from setting) | 30 sec or less (T90) (Can be changed from setting) |
Sample gas flow rate | 0.5 L/min | 0.5 L/min | 0.5 L/min |
Sample gas pressure | 49 kPa | 49 kPa | 49 kPa |
Carrier gas flow rate | Approx. 12 mL/min | Approx. 12 mL/min | - |
Carrier gas pressure | 49-100 kPa | 49-100 kPa | - |
Sample gas inlet, outlet, joint | Rc 1/8 (Can be changed according to specifications) | Rc 1/8 (Can be changed according to specifications) | Rc 1/8 (Can be changed according to specifications) |
| Analog output | Maximum 8 ch, 0-16 mA/ 0-20 mA/ 4-20 mA or | Maximum 8 ch, 0-16 mA/ 0-20 mA/ 4-20 mA or | Maximum 8 ch, 0-16 mA/ 0-20 mA/ 4-20 mA or |
| Relay contact | 16 ch isolated | 16 ch isolated | 16 ch isolated |
| Communication | EthernetTM（Modbus®/TCP） | EthernetTM（Modbus®/TCP） | EthernetTM（Modbus®/TCP） |
| Power | 100-240 V AC (±10%), 50/60 Hz (±1.0%) | 100-240 V AC (±10%), 50/60 Hz (±1.0%) | 100-240 V AC (±10%), 50/60 Hz (±1.0%) |
| Exterior dimensions | 430 (W) × 380 (D) × 132 (H) mm | 430 (W) × 380 (D) × 132 (H) mm | 430 (W) × 380 (D) × 132 (H) mm |
| Mass | Approx. 12 kg | Approx. 12 kg | Approx. 9 kg |
| Option | Auto-calibration function | Auto-calibration function | Auto-calibration function |
| Carrier gas | O2 gas (Purity > 99.99 vol% O2) | O2 gas (Purity > 99.99 vol% O2) | - |
*1: Based on factory inspection data
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Multi-Component Gas Analyzer
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