gas-lab Q1

Flameless gas quality analyser for natural gas which works on base of a novel infrared absorption technique and heat conductivity. The set up consists of two parts. A heavy duty housing accommodates the sensors and the primary measurement electronics and can optionally be installed in a hazardous environment.


Technical Data Downloads  
 

gas-lab Q1: gas quality analyser

Subject to change without prior notice

Primary measurements and ranges

Gross calorific value Hs              8.4 -13.1 kWh/m³ (30.4 - 47.2 MJ/m³)

Standard density ρ                     0.711 - 0.970 kg/m³

CO2-concentration xCO2            0 - 5 mol%, optional 0 - 20 mol%

(Reference state: combustion 25°C, volume 0°C, othjer reference states optional)

Measurement uncertainty 

Hs: < 0.4%, ρ: < 0.8%, xCO2:< 0.2 mol%

Hs: < 0.2%, ρ: < 0.4% optional with individual gas calibration 

Derived measurements 

Wobbe index, net CV, rel. density, sat. gross/net CV, methane number and calculated

model gas composition (CH4...C8H18, N2, CO2)

Range of appropiate gases 

Generic natural gases

CH4: 75- 100 mol%       CO2: 0- 5 mol%, optional 0 - 20 mol%

C2+    0- 15 mol%          O2: 0 - 3 mol%

N2      0- 20 mol%        others < 0.1 mol%

Calibration gas     Methane (purity > 3.5) with automatic calibrationcycle
Gas management 

Integrated 3-channel double block an bleed device for the process gas, calibration gas

and optional test gas (remote verification possible)

Operational pressure/consumption 

Inlet pressure 200 mbar to 5 bar (basic configuration), 30 l/h (without bypass)

Inlet pressure 200 mbar to 100 bar with optional high pressure reductin unit

Dynamics    Analysis rate: c. 1/s, reaction time < 5 - 10 s, t90: c. 20 - 60 s (bypass setting)
Power supply     24 V DC, 30 W
Enviroment 

Sensor unit: IP 54, 5 - 40 °C, with additional housing: -20 - 55 °C

Controller unit: IP 20, 0 - 40 °C

Interfaces 

3 digital outputs, 4 analogue outputs,

optionally expandable I/O boards,

serial interface forparameter setting and local readout,

DSfG interface, optional Modbus interface,

optional modem for remote controlan data retrieval

Data logger 

Integrated logging of Hs, ρ, xCO2 and derived measurement as mean values (e.g. on

hourly basis) or current values, Integrated logging of measurement system status and

external events, Data retrieval locally vie serial I/O or remotely via optional modem

Approvals     ATEX, EMC, PTB (National institute for metrology in Germany)