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• Span check ÀÏüÈ
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• Coke Oven Gas (COG)
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• SPECIFICATIONS
- Detection limit(LDL): 5ppm
- Process gas temperature: min. 20°C/ max. 70°C
- Detection limit(LDL): 5ppm
- Process gas temperature: min. 20°C/ max. 70°C
- Process gas pressure: min. 0.9barA / max. 1.3barA
- Optical path length: Typically 0.5 - 30m
- Optical path length: Typically 0.5 - 30m
- Repeatability: 0.2ppm
- Linearity: <1% of range
- Response time: < 5 seconds
- Response time: < 5 seconds
• ENVIRONMENTAL CONDITIONS
- Operating temperature: -40 °C - +65 °C
- Storage temperature: -40 °C to +70 °C
- Protection classification: IP65
- Operating temperature: -40 °C - +65 °C
- Storage temperature: -40 °C to +70 °C
- Protection classification: IP65
• INPUT / OUTPUT
- Analog output(3): 4 - 20 mA current loop(concentraion and transmission)
- Digital output: 10/100 Base T
- Analog output(3): 4 - 20 mA current loop(concentraion and transmission)
- Digital output: 10/100 Base T
Ethernet (Modbus/TCP)
- Relay output(2): High gas, warning and fault (normally closed)
- Analog input: 4 - 20 mA process temperature and pressure reading
- Relay output(2): High gas, warning and fault (normally closed)
- Analog input: 4 - 20 mA process temperature and pressure reading
• RATINGS
- Power supply: 24 VDC, range 18 - 32 VDC
- Power consumptions: max 20W
- 4 - 20 mA output: 500 Ohm max. load impedance, not isolated
- Relay output: 1 A at 30 V DC
- Power supply: 24 VDC, range 18 - 32 VDC
- Power consumptions: max 20W
- 4 - 20 mA output: 500 Ohm max. load impedance, not isolated
- Relay output: 1 A at 30 V DC
• SAFETY
- Laser class: Class 1M according to IEC 60825-1, eye safe
- CE: Certified
- EMC: Conformant with directive 2014/30/EU
- Laser class: Class 1M according to IEC 60825-1, eye safe
- CE: Certified
- EMC: Conformant with directive 2014/30/EU
• APPROVALS
- ATEX zone 1: Ex db [op is Ga] IIC T4 Gb, Ex tb [op is Da] IIIC T100°C Db
- CSA: Class I Div.2, Groups B, C and D, T4
- ATEX rating connetion box: II 2 GD Ex e IIC T5, II 2 D Ex e tb IIIC T85°C Db
- ATEX zone 1: Ex db [op is Ga] IIC T4 Gb, Ex tb [op is Da] IIIC T100°C Db
- CSA: Class I Div.2, Groups B, C and D, T4
- ATEX rating connetion box: II 2 GD Ex e IIC T5, II 2 D Ex e tb IIIC T85°C Db
• INSTALLATION AND OPERATION
- Flange dimension: DN50/PN10 or ANSI 2"/150lbs (other dimensions on request)
- Flange dimension: DN50/PN10 or ANSI 2"/150lbs (other dimensions on request)
- Alitnment tolerances: Flanges parallel within 1.5°
- Purge of windows: Dry and oil-free pressurised air or gas, or by fan
- Purge flow: 10-50l/min (application dependent)
- Purge of windows: Dry and oil-free pressurised air or gas, or by fan
- Purge flow: 10-50l/min (application dependent)
• MAINTENANCE
- Calibration: Check recommended every 12 months
- Validation: In-situ span check with optional internal cell (application dependent)
- Calibration: Check recommended every 12 months
- Validation: In-situ span check with optional internal cell (application dependent)
• DIMENSIONS / WEIGHT
- Transmitter and receiver unit(TU/RU): 215mm(length, add 50mm for purge unit) x 125mm(diameter), 3.5kg each
- Transmitter and receiver unit(TU/RU): 215mm(length, add 50mm for purge unit) x 125mm(diameter), 3.5kg each
- TU/RU connection box: 260mm x 160mm x 90mm, 2.5kg
♦ LaserGas™ III Ultra SP COG H2S
| Min | Max | |
|---|---|---|
| Measurement range | 0-250ppm | 0-10,000ppm |
| Detection limit(LDL)** | 5ppm | |
| Precision | LDL or 1% of reading | |
| Process temperature | +20°C | +70°C |
| Process pressure | 0.9BarA | 1.3BarA |
| Repeatability | 0.2ppm | |
| Measurement update time | 1s |
♦ Typical process conditions
| Gas | Concentration |
|---|---|
| H2 | 55-60% |
|
CH4
|
22-25% |
| C2H4 | 2-3% |
| CO | 5-10% |
| CO2 | 1-5% |
| Other gases | <2% |
** NOTE: LDL is defined as the maximum peak-to-peak value of a 24 hour temperature cycle test(-40°C to +65°C) using 1s update time. LDL also includes typical background inerferences not explicitly defined in the table.
