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Testermeter- LA470 Online Wall-Mounted Oxygen Analyzer
Technical Parameter
Measurement principle | Fuel cell (Electro-chemistry) |
Display mode | 320×240 dot matrix color LCD |
Measuring range | 0~10/100/1000ppm O2 (trace amount) 0~10% / 25% / 100% O2 (constant) |
Measuring accuracy | 0~1000ppm / 10% / 25% / 100% ≤ ±1%FS 0~100ppm≤±2% FS 0~10ppm≤±5%FS |
Minimum resolution | 0.1 ppm |
Output interface | 4-20mA.DC (non-isolated output, load resistance <1KΩ). 0-5V.DC (non-isolated output, load resistance >10KΩ). 1 way programmable dry contact type passive alarm output, maximum contact capacity AC220V/2A. |
Communication | RS232 default, or RS485 |
Repeatability | ≤ ±1%FS |
Response time | T90≤60S (trace amount) T90≤40S (constant) |
Environmental temperature | -10℃ ~ +50℃ |
Storage environment humidity | <90%RH, non-condensin |
Working environment humidity | <100%RH, non-condensing |
Sample gas temperature | 0℃~40℃ |
Sampling method | suction or access optional |
Sample gas flow | 400~600mL/min |
Gas inlet pressure | slightly positive pressure, slightly negative pressure or normal pressure (suction type) 0.15Mpa ≤ absolute pressure ≤ 0.45Mpa, stabilized atmosphere (access type) |
Exhaust pressure | free emptying (under safe conditions) |
Background gas | N2, and other inert gases |
Charging power supply | AC220V±10% , 50/60Hz, Power consumption<30VA |
Dimensions | 400mm×300mm×200mm (H×W×D) |
Sensor life | >24 months (under normal use conditions) |
Pneumatic interface | NPT 1/8 internal thread |
Instrument weight | net weight about 16.5 kg |
Installation method | Wall-mounted |
Features
1. Imported fuel cell sensor is adopted, which has the characteristics of fast response speed, high measurement accuracy, long calibration period and long service time; Adopt an unique protective air circuit to effectively protect the sensor and prevent the sensor from being exposed to the air for a long time and affecting the life of the sensor; Automatic temperature compensation function to eliminate the influence of temperature changes on measurement accuracy; Calibration can be done at any point within the entire range, without multi-point calibration, making calibration simple and convenient; 5000 data automatic storage, users can check historical data locally at any time; Automatic back-flushing function (optional) to avoid the clogging of the sampling pipeline (especially the filter) caused by pollutants such as dust in the sampling gas Built-in original imported sampling pump (optional), with long lifetime and reliable operation. |
Applications
| It is widely used in the online analysis of oxygen content in protective atmosphere furnaces such as high-temperature sintering furnace protective gases such as magnetic materials and brazing furnaces, electronic semiconductor protective gas furnaces, and glass process requirements. |
