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Wobbe-Index and Air demand  沃泊指数分析仪 RHADOXTM 用于快速分析沃泊指数和助燃空气需求量。分析仪测量的基本原理是在样品实现完全燃烧后分析燃烧过程空气需求量。对样气燃料气体和空气在理想的温度和压力下进行混合均匀所混合物,然后在催化反应器中氧化。在氧化过程中氧含量的气体混合物被连续测量。通过内置的校准计量参数测量得到沃泊指数和需氧量。沃泊指数和需氧量是控制稳定燃烧控制的重要的基本参数。
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Ex-classification

ATEX II 2G Ex px IIB+H2 T4 Gb X (Ex-Zone 1)

ATEX II 3G IIB+H2 T3 (Ex-Zone 2)

 

Measuring components / -

ranges

Air demand [CARI]

 

smallest measuring span 1,5 m3 Air / m3 Gas

largest measuring span 30 m3 Air / m3 Gas

 

Wobbe-Index [Wi]

smallest measuring span 5 MJ / m3

largest measuring span 120 MJ / m3

 

Specific Gravity [SG]

 

smallest measuring span 0,5

largest measuring span 3,0

 

Calorific value [LCV]

 

smallest measuring span 5 MJ / m3

largest measuring span 140 MJ / m3

 

Analogue signal port

4* 4 … 20 mA, galvanically separated

Reproducibility

 

Air Demand & Wobbe-Index 0,15 % - 0,2 % of the measuring value

Spec. Gravity and Cal. Value 1,0 % … 2,0 % of the measuring value

 

Lang term drift

 

0,5 % of measuring value / Month

T90-Time

5…15 seconds, depending on viscosity of the measuring

gas

 

Display

 

2* 16 digit back-lit LCD display

Messages

1 System message (Measuring value yes / no)

3 Messages (Service, Calibration, Status )

 

Digital Communication

serial Interface RS232

Option RS 485; Ethernet

 

Ambient operating temperature

from - 20 °C to + 60 °C

 

Operating temperature

 

from + 5 °C to + 60 °C; special version for up to 105 °C

 

Gas connections

Inlet / Outlet 6 / 12 mm, Ferrule pack

 

Gas flow volume

Measuring gas 20 … 100 Nl/h

Instrument Air 50 … 500 Nl/h (depending on Air demand)

 

Gas pressure (at Inlet)

 

Gas 0,1 bar (g), max. 17 bar (g)

instrument air 2 bar (g), max. 8 bar (g)

 

Power supply

115 or 230 VAC / 50 - 60 Hz, 1000 VA

 

Protection class / Housing

IP65 / 1000 x 900 x 350 mm (HxWxD)

 

Weight

~100… 155 kg depending on options and protection class

 

Options

Integrated catalytic remover of by-pass gas

Auto-calibration

Version: AMS RH7300 E V-2013-07

 


The RHADOX™ Analysers are mounted on a metal mounting plate with the components catalytic
reactor, gas mixing chamber, electronic evaluation unit, power supply and measuring signal
distribution installed in separated sheet metal housings. The housings of the components are
manufactured for General Purpose in protection class IP 65. If required the RHADOX™ Analysers can also be supplied as integrated system installed in a analyser shelter including gas monitoring. The analyser shelter does not have to be air conditioned. However the operating temperature has to be observed (see technical data below). The Wobbe-Analyser RHADOX 1000 is calibrated by using two calibration gases which represent the low and high measuring range which have to be determined for every Off-gas individually. The calibration is started manually from the analyser main menu. Integrated automation components allow access to the system by remote control. The RHADOX™ Analysers are available for use in hazardous areas classified as Zone 1 and 2. The RHADOX™ Analysers are designed for continuous operation in industrial applications.






用于测量沃泊指数和需气量:
天然气、
钢厂煤气、
精炼尾气、
生物质气等。

用于包括沃泊指数的混合气体的前馈和反馈控制、炉窑控制、燃气涡轮控制。









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