BioBasic Bionix Meeting the benchmark.
The benchmark: the process gas chromatograph
Online gas analyzer for biomethane. One reading every second for CH₄, CO₂, O₂ and H₂S, right at the grid injection point.
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Use the BioBasic Bionix to make sure your gas is on spec before grid injection.
Biomethane composition keeps changing, even after upgrading. Spot a change early and reliably, and you can correct it in time.
Proven in the field.
For six days the BioBasic Bionix ran at a biomethane grid injection plant right next to a process gas chromatograph, which sets the benchmark, and delivered highly accurate readings. On average, the two instruments were very close.
- CH₄
- < 0.3 vol.%
- CO₂
- ≈ 0.1 vol.%
- O₂
- ≈ 0.01 vol.%
Mean deviation from the process gas chromatograph across more than 500,000 one-second readings, drift close to zero.¹
One reading every second.
On speed, the BioBasic Bionix beats the benchmark. It measures continuously and shows every change as soon as the gas reaches the analyzer.
New reading
- BioBasic Bionix
- every second
- Process GC
- every few minutes
You see changes before a gas chromatograph can report them.
In the field comparison the BioBasic Bionix readings were about 11 minutes ahead of the process gas chromatograph, so you can adjust the upgrading plant that much sooner.¹
Change visible
- BioBasic Bionix
- first
- Process GC
- about 11 min later
Considerably less expensive than a gas chromatograph.
The BioBasic Bionix costs considerably less than a process gas chromatograph, so one reading every second pays off even alongside the GC used for custody transfer.
Measured against the benchmark.
Summarised from more than 500,000 one-second readings, these charts show how closely the BioBasic Bionix follows the process gas chromatograph and how much sooner it shows a change.
- BioBasic Bionix
- Process GC
- BioBasic Bionix
- Process GC
Values as a table
| BioBasic Bionix | Process GC | |
|---|---|---|
| Day 1 | 96.29 | 96.55 |
| Day 2 | 96.14 | 96.37 |
| Day 3 | 95.94 | 96.29 |
| Day 4 | 96.11 | 96.36 |
| Day 5 | 96.23 | 96.44 |
| Day 6 | 96.01 | 96.30 |
¹ Field comparison at a biomethane grid injection plant in Germany, July 2026, after adjusting the calibration parameters. The test gas itself has an uncertainty of ±0.2 vol.% for CH₄. H₂S was not part of the comparison. The time lead depends on the GC cycle and the sample line. The BioBasic Bionix complements the process gas chromatograph used for custody transfer.
The four gases the BioBasic Bionix measures.
- CH₄90–100 vol.%NDIR
- CO₂0–10 vol.%NDIR
- O₂0–30 vol.%electrochemical
- H₂S0–100 ppmNDUV
A simple touch display with a modern Material Design interface.
Read the current value for each substance on its own tile and analyze the trends right on the display. Write the measurement data to a USB stick or evaluate it with the GasAnalyzer Connect app.
- Measuring displayFour gases with trend arrow and history.
- MenuAll functions in plain text.
- DisplayLight or dark, chart lines per reading.
- LanguageSeven languages, right on the device.
Example values
GasAnalyzer Connect app
- Coming soon on Google Play
- Coming soon on the App Store
See what your product gas is doing right now.
One reading every second. You will find all data, views and options of the BioBasic Bionix on the product page.
Technical data (extract)
The BioBasic Bionix in figures
| Measuring interval | One reading every second, continuous |
|---|---|
| Gas components | CH₄, CO₂, O₂, H₂S |
| Measuring ranges | CH₄ 90–100 vol.%, CO₂ 0–10 vol.%, O₂ 0–30 vol.%, H₂S 0–100 ppm |
| Measuring principle | CH₄/CO₂: NDIR, O₂: electrochemical, H₂S: NDUV |
| Expanded uncertainty | CH₄ 0.2 %, CO₂ 0.5 %, O₂ 0.3 %, H₂S 0.5 % of full scale |
| Calibration | automatic with span and zero gas, error-monitored, approx. 4 min per cycle |
| Sample transport | internal pump 4 l/min, optional pumpless from 60 mbar inlet pressure |
| Ambient conditions | 20–30 °C, air-conditioned indoor installation only |
| Housing | Wall-mounted housing 400 × 600 × 200 mm, IP 54, 18 kg |
| Interfaces | 4–20 mA and RS232, optional Profibus DP, Profinet, Ethernet IP, Modbus TCP |
| Safety | ATEX-certified flame arrester at the sample inlet, speed-monitored fan |
Extract, as of . The datasheet is always binding. Request datasheet
Frequently asked
Measuring biomethane: questions from practice
01How accurate is the BioBasic Bionix compared with a gas chromatograph?
In a field comparison at a biomethane grid injection plant, the mean deviation from the process gas chromatograph was below 0.3 vol.% for CH₄, around 0.1 vol.% for CO₂ and around 0.01 vol.% for O₂. The test gas itself has an uncertainty of ±0.2 vol.% for CH₄. H₂S was not part of the comparison.
02Does the BioBasic Bionix replace the process gas chromatograph?
No. The process gas chromatograph remains the instrument for custody transfer. The BioBasic Bionix complements it by measuring every second and showing swings that fall between two GC values.
03Which gases does the BioBasic Bionix measure?
CH₄ from 90 to 100 vol.% and CO₂ from 0 to 10 vol.% by NDIR, O₂ from 0 to 30 vol.% electrochemically and H₂S from 0 to 100 ppm by NDUV.
04How often does the analyzer deliver a reading?
Every second, continuously. Only during automatic calibration are no readings available, for about four minutes per cycle.
05How is the BioBasic Bionix calibrated?
Automatically with span and zero gas at an adjustable interval. Calibration is error-monitored, including limits for the calibration factor and offset.
06Where can the analyzer be installed?
In air-conditioned indoor rooms at 20 to 30 °C. The wall-mounted housing has protection class IP 54. The flame arrester at the sample inlet is ATEX-certified; the analyzer itself is not approved for hazardous areas.
Advice
Tory – your BioBasic Bionix advisor
Tell Tory where you want to measure your biomethane and which values you need. Tory clarifies the key points and puts you straight in touch with our team.
- Measuring point and gas composition
- Installation and interfaces
- Direct path to a quote request
Let's talk about your grid injection.
Tell us your measuring point, gas composition and installation site. You get a concrete proposal. Faster: ask Tory in the chat at the bottom right.
