For optimum quality and process protection, the avoidance of oxygen, also as traces, is necessary in many technological applications. Due to the increasing adoption of a quality management system (e.g. ISO 9000), a constant monitoring and documentation of quality parameters becomes more important.
The compact oxygen analyzer SGM7 is based on the approved, drift-, calibration- and maintenance-free ZIROX® zirconia technique. It contains the measuring cell as well as the electronic unit for cell heating control, flow monitoring, integrated pump and signal processing.
Via microprocessor, the measuring cell signal is processed according to the NERNST equation. The requested value is displayed as an analog current signal.
(Option: digital interface RS232 with software).
In the SGM7, the measuring cell is monitored continuously. In case of an error, an alarm signal is generated.
Thông số kỹ thuật Oxygen Analyzer SGM7
| Range | 2.0 · 105...1 Vol.-ppm, (20.6...1x10-4 Vol-%),
up to 10-20 Vol.-ppm possible (reducing conditions), range up to 100 Vol.-% on request |
| Accuracy | rel. error < 5% |
| Gas flow | 5 ... 10 l/h |
| Max. measuring gas pressure | 20 mbar overpressure |
| Max. measuring gas temperature | 80 °C at gas input |
| Pressure drop over measuring cell | approx. 1 kPa (100 mm WS) at 10 l/h |
| Dimensions (W x H x D) | 135 mm x 100 mm x 240 mm |
| Weight | 3kg |
| Protection degree | IP 40 |
| Gas input | Swagelok® 3 mm |
| Gas output | tube nipple 3 mm |
| Working conditions | 10...45 °C, rel. humidity < 80% at 20 °C |
| Storage conditions | -20...60 °C, rel. humidity < 95% at 20 °C |
Power supply
Voltage
Power consumption
Heating measuring cell |
100 - 240 V AC, 47 - 63 Hz
20 VA
24 V DC, ca. 10 W (internally controlled) |
Keypad and display
Keypad
Plain text display |
3 keys
LCD dot-matrix |
| Interface | RS232 |
Analog output
Current output
Option: Voltage output |
0/4...20 mA, galvanically isolated, freely scalable, working resistance max. 500 Ω
0/2...10 V, galvanically isolated, freely scalable |
Link tải catalogue:
Data sheet
