The HZSP-II gas chromatograph (touch screen) is a specialized laboratory instrument developed by our company. It features 7-inch color touch screen control with professional chromatography UI interface design, providing intuitive display of inlet, column temperature box, and detector internal temperature values, running time, and includes one-key temperature reduction functionality for simple, intuitive operation.
This instrument is widely used in scientific research and education, petroleum, chemical industry, biochemistry, food safety, medicine and health, environmental monitoring, and judicial investigation fields. It offers high testing precision and excellent repeatability.

| Parameter | Specification |
|---|---|
| Network inverse control system | Internal CAN method, with interface board design, can be converted to network output at will |
| Number of signal output bits | 24-bit |
| Communication Interface | Network interface output (connected by category 6 network cable) |
| Circuit Design | ARM embedded design, easy to realize wireless control, remote control and cell phone APP control |
| Temperature control system | Six independent temperature control |
| Temperature control | Above room temperature -450ºC, optional liquid nitrogen refrigeration: -80ºC-450ºC |
| Column temperature control accuracy | ±0.02ºC |
| Programmed temperature rise | Arbitrary order, 0.1 degree / order |
| Display Module | Large-screen liquid crystal display |
| Display Accuracy | 0.01ºC |
| Column Program Rise Rate | 0-80ºC/min (adjustment increment 0.1ºC/min) up to 120ºC/min |
| Programmed Temperature Rise Repeatability | ≤1% |
| Electronic Pressure Controller (EPC/EFC) | Pressure range: 0 ~ 1000kPa | Full pressure control accuracy: 0.001psi | Maximum shunt ratio: 8000:1 |
| TCD Detector Sensitivity | S value ≥ 8000mv.ml/mg (benzene), up to 12000 mv.ml/mg (benzene) |
| Baseline Noise | ≤10uv |
| Baseline Drift | ≤50uv/30min |
| FID Detector Detection Limit | ≤5.0 × 10-12g/s (cetane) |
| Baseline noise | ≤ 2× 10-14A |
| Baseline Drift | ≤ 1× 10-13A/30min (after 2 hours of instrument stabilization) |
| ECD Detector Detection Limit | ≤1.0 x 10-13g/s( r-666) |
| Baseline noise | ≤40uv |
| Baseline Drift | ≤ 100uv/30min |
| FPD Detector Detection Limit | ≤1.4 × 10-12g/s(P), ≤5× 10-11g/s(S) |
| Baseline noise | ≤ 20uv |
| Baseline Drift | ≤50uv/30min |
| Expansion | 6 external events can be added |
| Automation Engineering | Can add: automatic ignition function, realize autosampler connection, four-way flow pressure display function, optional reverse control workstation to realize reverse control |




