TDLAS Gas Measurement Modules
Specvaltech works with manufacturers of industrial gas analysers and detection equipment to turn a defined measurement requirement into a module that can be integrated, verified, certified and delivered.
We connect application engineering, optical and electronic architecture, mechanical packaging, specialised supply chains in China, testing, certification coordination and international delivery.
Pipeline-Insertion TDLAS Methane Measurement Module. The insertion section passes through a G1″ process connection; the measurement window sits in the gas flow.
Two products, two measurement positions
Our own development
The insertion section passes through a G1″ process connection and the measurement window sits in the gas flow. There is no sample line between the pipe and the reading.
0–100 %vol on 5 V at under 0.65 W, compensated from 20 to 200 kPa absolute — which includes the suction range a drainage line runs in.
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Supplied and adapted by us
A 140 × 110 × 96 mm module for installation inside your instrument. Sample gas is delivered to it by your pump and gas path.
The standard platform supports CH₄, CO₂, CO and NH₃. Final packaging, interfaces, validation scope and certification configuration are defined around the target instrument, market and industry.
More >>>Where to start
Must the measurement happen in the process stream or inside the host instrument?
This decision establishes the gas path, response chain, maintenance access and the responsibilities of the surrounding equipment.
Which gas and concentration range must the equipment measure?
The target gas, optical band, path length and expected background composition define the measurement platform.
What pressure, temperature, moisture and flow conditions will the finished module see?
These conditions determine compensation, materials, packaging and the validation plan.
Which market, industry and installation environment will the product enter?
The applicable route is translated into a defined electrical, mechanical and documentation configuration before the design is frozen.
Our own development
This is our own development: a pipeline-insertion methane module for high-concentration coal mine gas drainage pipelines. The measurement window sits in the gas flow, so there is no sample line between the pipe and the reading.
The decision is architectural. Use direct insertion when the process measurement point, suction pressure and removal of sample-line transport are decisive. The finished configuration can then be engineered around the intended installation and certification requirements.
Appearance and position reference
Use the application and proportion reference to confirm that the insertion window, process connection and electrical side match the intended installation.
Engineering insights
These articles turn the conditions behind a module datasheet into checks you can use in a real project: sample path, pressure envelope and interlock threshold.
Measurement structure
Locate the measurement point, sample transport delay and conditioning responsibility before discussing a sensor.
Pressure basis
Separate process operating pressure, compensation validity and mechanical integrity before accepting a range.
Decision threshold
Convert published accuracy into an absolute error band at the trip point before assigning system responsibility.
How we supply
The measurement module is developed as part of a defined finished configuration. Gas, range, measurement position, operating envelope, interfaces, packaging and certification requirements are treated as one engineering baseline.
Specvaltech carries that baseline through selection, circuitry, packaging, assembly, verification, certification coordination and export delivery under one legal entity.
Target gas, range, measurement position, pressure, interfaces, market and certification requirements are defined together.
Pipeline-Insertion or extractive instrument integration is selected according to the real gas path.
Electronics, packaging, materials, interfaces, validation and certification scope are frozen as one controlled product configuration.
Assembly, testing, documentation, certification coordination and export delivery follow the agreed configuration.
Before configuration is frozen
These inputs connect the measurement function to the host equipment, installation environment, certification route and acceptance plan.
Use the Pipeline-Insertion architecture when the measurement window must sit inside the coal mine gas drainage pipeline. Use the extractive architecture when the host pump and gas path deliver a sample to a module inside an analyser or detection instrument.
Send the target gas and range, background composition and moisture, measurement position, process or sample conditions, pressure, temperature, interfaces, target market, industry and intended certification route. Conditions not yet known are recorded as open items with a resolution path.
The platform baseline provides the starting point. Connector family, pinout, protocol, gas fittings, tubing, shielding, diagnostics and fault behaviour are captured in a project interface schedule and frozen with the finished configuration.
Certification is engineered into the defined finished-module configuration. We align the electrical design, packaging, materials, interfaces and documentation with the applicable route, then coordinate the required testing and certification for final delivery.
The agreed delivery package can include the controlled specification, interface schedule, test and calibration records, traceability information, integration documentation and certification records applicable to that configuration.
HUBEI NINESEA IMPORT & EXPORT CO., LTD carries product contracting, supply-chain coordination and export execution. Specvaltech is its engineering-measurement business; SpecVal · 思贝沃 is the product brand used for supply.
Direct engineering contact
Discuss the application directly with the engineer responsible for assessment and delivery.
Ready to define the project baseline?
Use the Project Assessment form to send the conditions already known and identify the items that still need verification.
Assess your application →Next engineering step
Start with the conditions already known. We will structure the architecture, open items and next action.