Oxygen Analyzer for Built-in Packing Machine LF-200
Posted by adminrexindoto at March 16th, 2017
The LF-200 zirconia oxygen analyzer was developed for automatic gas filling packaging equipment based on Toray Engineering’s long track record with oxygen analyzers for the food packaging industry.
This analyzer is equipped with our unique, compact zirconia sensor to enable stable and highly accurate measurement over the long term, and an oxygen sensor protection mechanism for unprecedented durability. This is an easy to operate, compact oxygen analyzer which is ideal for integration into automatic packaging equipment for foods, pharmaceuticals and other products.
Features
- ♦ Protection against oils
- The system is equipped with a new type of filter to improve measurement of gases with dispersed oils. The filter can be replaced without removing the analyzer from the panel.
- ♦ Suction pump protection function
- Enables pump protection while avoiding problems due to on-site cleaning caused by blowing air.
- ♦ High-speed response
- Internal pipe flow which minimizes gas stagnation at points of measurement.
- ♦ Power supply
- AC200V is provided standard, for ease of integration into packaging equipment (AC100V is optional).
Principle of Measurement
Toray zirconia oxygen analyzers determine oxygen concentration using the conductivity of a zirconia ceramic cell. Zirconia ceramic cells only allow oxygen ions to pass through at high temperatures. With reference gas on one side and sample gas on the other, oxygen ions move from the side with the highest concentration of oxygen to that with the lowest concentration. The movement of ions generates an EMF (Electro Motive Force) which can be measured to determine the oxygen content. This is in accordance with the Nernst equation.
LF-200 Internal Flow Diagram
Specifications
Equipment Specifications
| Type | Panel-mounted (Portable type is optional) |
|---|---|
| Display system | Digital 4-digit display (O2 concentration) |
| Measurement range | １ ppm-100 vol%O2 |
| Display range | 0-1000 ppm / 1 / 10 / 100 %, automatic *The 1000 ppm range is not guaranteed |
| Output range | 0-0.5 / 5 / 10 / 100 %, Fixed |
| Sampling system | Two methods: continuous suction with a built-in pump, and injection *Injection method is not guaranteed |
| Supply gas rate | 1000 mL/min |
| Sensor gas rate | 60 ± 10 mL/min |
| Gas connection | INLET (Sample gas inlet): Rc1/8 BYPASS OUT (Bypass outlet): Rc1/4 OUTLET 1 (Sample gas outlet1): Rc1/4 OUTLET 2 (Sample gas outlet2): Rc1/4 |
| Reference gas | Air |
| Weight | Approx. 7 kg |
| Paint color | Front, back: Silver metallic Cover: Stainless |
Characteristics
| Repeatability | Within ±1 % of full scale (at or above 0-1 % range) Within ±2 % of full scale (below 0-1 % range) (0-1000 ppm is not guaranteed) |
|---|---|
| Air point stability | Within ±0.5 % of full scale/24h |
| Measurement value output | External output: DC 4-20 mA |
| Concentration alarm output | LED display (Upper/Lower limit) Contact output: 2a individual output Contact: AC 30 V DC 30 V, 0.5 A |
| Self-diagnosis functions | Warmup error, Thermocouple error Internal temperature error CPU error, Furnace temperature error Asymmetry potential error, Sensor resistance error AIR point calibration error SPAN point calibration error |
| Sample gas conditions | Must not contain flammable components, halogen, silica, corrosive components or water droplets. Pressure: Pressurized at 0.03 MPa max. Flow rate: 1,000-2,000 mL/min Temperature: 50 °C max. Humidity: Dew point lower than ambient temperature |
| Power supply | Voltage: AC 200 V, Wired to terminal block Frequency: 50/60 Hz |
| Set up conditions | Set up location: Indoors, Non-explosion-proof zone Ambient temperature: 0-40 °C Ambient humidity: 45-85 %RH, No condensation |
| Equipment options | Communication output (RS-232C compliant, unidirectional) Activated carbon filter, Cotton filter Power supply voltage AC 100 V |
Engineering Specifications
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