Key facts
- Brand
- Bühler
- Model
- BA 4000
- Industry
- Industrial
- Documents
- 2
- Languages
- ZH
- Last added
- 2011-10-28
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Bühler BA 4000 Inj. Portable Oxygen Analyzer Installation and Operation Manual
The BA 4000 Inj. is a portable oxygen analyser designed for measuring low‑level oxygen in small‑volume gas samples, such as food packaging and insulated glass. Two variants (GV and KV) cover different sample volumes and use either an internal pump or an external vacuum pump.
This document explains how to install the analyser, connect electronics and gas lines, perform safe operation, calibrate with zero and span gases, and maintain the device, including battery handling and disposal procedures. This manual is written in Chinese.
Bühler BA 4000 specifications
| Measured component | Oxygen |
|---|---|
| Measurement range | 0 – 10 Vol.% O₂ (order) / 0 – 25 Vol.% O₂ (optional) / 0 – 100 Vol.% O₂ |
| Accuracy | ±0.1 % O₂ (absolute) |
| Repeatability | ±0.05 % O₂ |
| Response time | <10 s |
| Zero drift | ±0.1 Vol.% O₂ per week |
| Range drift | ±1 % per week |
| Inlet temperature range | +5 °C to 40 °C |
| Inlet pressure range | 10 mbar to 1.5 bar |
| Power supply | 230 V / 115 V, 50/60 Hz |
| Built‑in battery | 12 V, 2.7 Ah (≈14 h operation) |
Source: Bühler BA 4000 Inj. Portable Oxygen Analyzer Installation and Operation Manual
All Bühler BA 4000 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
How often should the BA 4000 Inj. be calibrated?
Calibration is required after each warm‑up, after large pressure changes, after indoor temperature changes greater than 5 °C, and roughly once a month during normal operation.
From: Bühler BA 4000 Inj. Portable Oxygen Analyzer Installation and Operation Manual
What measurement principle does the BA 4000 Inj. use?
It uses a paramagnetic dumbbell‑ball sensor that detects the magnetic properties of oxygen in the measurement cell.
From: Bühler BA 4000 Inj. Portable Oxygen Analyzer Installation and Operation Manual
Can the BA 4000 be used in explosive atmospheres?
No. The device must not be operated in potentially explosive environments and should not have flammable or explosive gas mixtures passed through it.
From: Bühler BA 4000 Oxygen Analyzer Installation and User Manual