Beidou Star Instrument Portable Gas Liquefied Gas Calorific Value AnalyzerInstrument features:
Built in microcontroller microcomputer
Quickly detect parameters and temperature values, and perform temperature correction and cross correction
24 sets of data records, can be set to automatic or manual recording
RS232/485 duplex interface, capable of online sampling with microcomputers
Inert gas software zeroing, standard sample or substitute calibration
All operation keyboard settings, window prompts
Instrument function:
Beidou Star Instrument Portable Gas Liquefied Gas Calorific Value AnalyzerFunction:
On site LCD 4 × 16 character rotating display of multiple environmental parameters
Over limit alarm, alarm limit can be set
RS232/RS485 communication interface supports serial communication and can be connected to a computer
Comes with a serial micro printer
100 sets of data records. Readable, output or print
Optional pump sampling or depressurization sampling
Can enhance gas filter columns or other filters
Users can also calibrate or calibrate themselves
Calculation of calorific value through whole component analysis
Technical specifications of pGas200 gas calorific value meter:
BD4 host testing ADC resolution: 0.025%FS
BD4 host test repeatability accuracy: 0.05%FS
Electrochemical probe accuracy: ± 1-2% reading (general)
Long term stability:+/-10%/year (generally)
Analyzer response time:< 10ms;
Probe response time:< 1min;
Instrument usage environment: Temperature: -10 ℃ to 60 ℃; Humidity: 10% to 90% R (no condensation)
Instrument storage environment: temperature: 0 ℃~50 ℃; Humidity: 10% to 80% R (no condensation)
Electrochemical probe direct sampling: temperature: 0-40 ℃; Pressure:< 1.1 kgf/cm2
Power supply: 6V rechargeable battery
Continuous usage time:> 24 hours per charge; The battery should be stored for one week.
Electrical function and performance:
Please refer to the introduction of BD4/BD5 intelligent transmitters/controllers
Chassis packaging: NEMA 1/IP10;
Chassis size: 700*360*250
Instrument quality assurance: 1 year
Technical specifications of pGas2000-FGA-5s portable liquefied gas gas analyzer:
Professional analysis system |
Professional analysis system |
repeatability |
accuracy |
stability |
technology |
notes |
|
C/C2/C3/C4 |
0-50% |
<± 1% FS or ± 1% Rel, whichever is greater; |
<± 1% abs @ standard gas |
<0.05% in 20 seconds, constant temperature< 2% per year |
IRS |
Infrared Spectral Analysis of CH4 and CnHm |
|
H2 |
0-100% |
<1%R |
<±2%R |
<2%/year |
TCD |
heat conductance |
|
CO |
0-100% |
<± 1.5% FS or ± 1% Rel, whichever is greater; |
<± 1.5% abs @ standard gas |
<10%/year |
NIR |
Non dispersive infrared |
|
CO2 |
0-20% |
<± 1% FS or ± 1% Rel, whichever is greater; |
<± 1% abs @ standard gas |
<2%/year |
NIR |
Non dispersive infrared |
|
H2O |
100ppm-3% |
<1%R |
<1.5% |
<1.5%/year |
SMC |
semiconductor |
|
Calorific value range |
0-40MJ/NM3 |
<1.5% |
count |
Usage of portable gas calorimeter:
At the sampling port, first use a pressure reducing valve to reduce the pressure to below 0.1kgf/cm2, and then use the instrument's fine-tuning to adjust it to around 10Pa for testing and analysis. This process should take 3-5 minutes to complete.
A simple and practical method that is not standardized enough is to take a plastic bag, put the gas from the pipeline into the plastic bag, maintain the minimum flow rate, insert the instrument sample tube into the plastic bag, and start the test. It is necessary to ensure that there are no ignition hazards in the environment before operation.
Instrument usage and maintenance:
If conditions permit, portable analyzers can generally be calibrated once a month, with a maximum of once a year; Before each use, an air test can be conducted. If there are obvious erroneous values, air zeroing can be performed to greatly overcome sensor drift;
The instrument is divided into three modes: natural gas, liquefied gas, and other organic fuels, each with its own calibration table. When analyzing a certain gas, use the keyboard to call up the response mode for testing.