Semi-Automatic Headspace Sampler, HS-12 (CAT#: STEM-C-2746-ZJF)

The HS-12 semi-automatic headspace sampler includes an upper computer interface and dedicated control software, allowing users to monitor headspace operation and control the sampler via a workstation or third-party software. It features microcomputer control and a large touch screen interface for setting various method parameters, displaying real-time working status and process information, and providing multiple methods for editing, storing, and recalling. The headspace vial, sampling system, and sampling (injection) conduit are controlled for three-way heating via the touch screen. All sample transfer lines and quantitative loops are made of imported high-inertness deactivated tubing, eliminating residue and cross-contamination to ensure repeatability and accuracy. The six-port valve and quantitative loop combination minimizes dead volume, enhancing injection precision, with no cold spots in the transfer line for sample integrity. The sampler uses a classic positive pressure sampling method for high detection sensitivity with liquid or solid samples, stable baseline, and the ability to detect benzene at 1ppb in water. The six-port valve is motor-driven, requiring no external drive gas, ensuring safe and convenient use. It supports automatic injection with low residual adsorption and strong versatility, with an automatic six-port valve ensuring consistent sample injection repeatability. After injection, the sample transfer line (including the sampling needle) and injection valve have an automatic backflush function to prevent cross-contamination. The sample box's matrix arrangement ensures uniform heating, reducing volume and power consumption. Optional accessories include different temperature six-port valves and imported inert injection needles. The device features self-check (board-level and gas path) and fault display functions, and includes a crimper for user convenience and cost reduction. It offers strong compatibility with various gas chromatographs, supporting synchronized startup of the GC and chromatographic data processing workstation, and enabling repeated injections from the same sample vial using external event programs.

Sample Heating Range: 40℃—200℃, Adjustable in 1℃ Increments (customizable up to 250℃)
Injection Valve Heating Range: 40℃—200℃, Adjustable in 1℃ Increments (customizable up to 330℃)
Sample Transfer Tube Heating Range: 40℃—200℃, Adjustable in 1℃ Increments (customizable up to 330℃)
Temperature Control Accuracy: < ±0.1℃
Temperature Control Gradient: < ±0.1℃
Pressurization Time: 0-20min
Sampling Time: 0-20min
Injection Time: 0-20min
Quantitative Tube Volume: 1ml (customizable up to 3ml)
Headspace Vial Specifications: 10ml or 20ml
Headspace Vial Positions: 12 positions
Simultaneous Sample Heating: 12 positions
RSD: 1.5% (100ppm ethanol aqueous solution)
Power Consumption: Peak 350W, Average 150W
Dimensions: 500(L)×180(W)×400(H)(mm)
Net Weight: Approximately 15kg

Equipped with an upper computer interface and dedicated control software. The status of the headspace operation can be viewed through the workstation, and the headspace sampler can be operated through the workstation or third-party software.
Microcomputer control, large touchscreen interface: Multiple method parameter settings, real-time display of working status, running process information, etc. Multiple methods are available for editing, storing, and calling at any time.
The headspace vial, sample introduction system, and sampling (injection) duct are controlled by touchscreen to achieve three-way heating temperature control. All sample transfer pipelines and quantitative loops use imported high-inert deactivation pipelines, leaving no residue or cross-contamination, ensuring the repeatability and accuracy of sample injection.
The combination of six-way valves and quantitative loops minimizes dead volume, ensuring sampling accuracy. There are no transfer cold spots in the link between the six-way valve and the transmission pipeline, ensuring sample integrity.
Utilizes the classic positive pressure sampling method, suitable for liquid or solid samples, with high detection sensitivity. Atmospheric pressure sampling ensures baseline stability. It can detect benzene in water at 1 ppb.
The six-way valve is motor-driven, eliminating the need for external driving gas, ensuring safe and convenient operation.
Automatic sampling, low-residue adsorption, strong versatility, automatic six-way valve: Ensures consistent sample injection.
After sampling, the sample transfer pipe (including the sampling needle) and the injection valve have an automatic purging function to avoid cross-contamination.
The heating position matrix arrangement of the sample box ensures uniform heating temperature while reducing volume and power consumption.
Can be equipped with six-way valves and imported inert sampling needles with different operating temperatures according to customer needs.
Equipped with self-check function (board-level and gas path) and fault display function.
Comes with a standard pressure cap clamp, facilitating user operation and reducing operating costs.
Strong compatibility, can easily connect with various gas chromatographs at home and abroad. Can synchronize startup with GC, chromatographic data processing workstation, or be started by external event programs to achieve multiple repeated injections from the same sample bottle.

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