Gas analytical system “Granat”
Gas analytical system “Granat” was designed for discrete and continuous analysis of the composition of gas flows in manufacturing equipment. One gas analytical system can alternately analyze gas samples taken from various tracks of one or several technological units. The functioning of “Granat” system is based on the mass-spectrometric measurement principle.
Extensive use of mass-spectrometric systems “Granat” is conditioned by:
- multicomponent analysis – simultaneous monitoring of the composition of the gas mixture, including H2, H2O, N2, CO2, CO, SO2, Ar, O2, CH4, C2H6, C3H8, etc.
- high speed of analysis – not more than 2 sec for a single measurement
- high precision of analysis — even negligible changes in the composition of the gas flow can be effectively monitored; threshold sensitivity of 0.001%
- reproducibility – high accuracy means that the gas analysis data obtained as a result of use of the “Granat” system, with a high degree of confidence, can be used for feedback control systems
- system is functioning in fully automatic mode
- comprehensive software package allows users to operate the device with an average level of qualification without any special knowledge of mass spectrometry
- reliability of the system, namely the ability to save work in the real world of industrial production with a different kind of negative external conditions (dust, temperature, vibration, etc.)
Metrological characteristics of gas analytical system “Granat”:
|
Component |
Measurement range (%) |
Standard deviation limits (%) |
Absolute error limits |
|
H2 |
0.2-15 |
0.1 |
±(0,005÷0,01 Стек* + 0,2) |
|
CO |
0.2-100 |
0.1 |
±(0,005÷0,01 Стек + 0,2) |
|
N2 |
25-100 |
0.1 |
±(0,005÷0,01 Стек + 0,2) |
|
O2 |
0.1-25 |
0.05 |
±(0,005÷0,01 Стек + 0,2) |
|
Ar |
0.1-2 |
0.05 |
±(0,005÷0,01 Стек + 0,2) |
|
CO2 |
0.1-100 |
0.1 |
±(0,005÷0,01 Стек + 0,2) |
|
CH4 |
0.1-10 |
0.1 |
±(0,005÷0,01 Стек + 0,2) |
|
Other organic and inorganic components with relative atomic mass up to 120 |
Indication mode |
||
* Стек – current value of the gas component concentration (%)
General characteristics of “Granat” system
| Characteristic | “Granat” system |
| Type of the analyzer | Time-of-flight or quadrupole mass spectrometer |
| Vacuum system | Turbomolecular pump |
| Sample preparation system | In sight |
| Special facilities | Is necessary, it is possible to deliver the system in autonomic thermostatic unit |
| Autocalibration system | In sight |
| Manual calibration system | In sight, possible from the control station as well as remote working place |
| Distant diagnostics system | In sight, archiving of working data of the basic parameters of the system |
| System of thermostabilization of the analyzer | In sight, in-built conditioner |
| Specialized software | Delivered together with the system as set of applications for Windows |
| Performing of unit of the system | IP54, particular units might be IP65 |
| Type of communication | Digital: RS232 or Ethernet (TCP/IP) analogue: 4 — 20 мА |
Basic product includes:
- gas unit
- system for sampling and sample preparation
- heated impulse track for gas samples transportation
- replacement components
- control station
- algorithmic control packet
- manual