
High-Precision Gas Dilution System
Brand
Entech
Model
4700
Place of origin
USA
Location
E3-129A
Main specifications
1. Dilution Ratio: ppb-ppt level;
2. Pressure Measurement: 0-50 psi (Accuracy ≤ ±0.05%);
3. Operation Modes:
Std Prep / Standard Preparation Mode
Flush / Purge Mode
Pressurize / Pressurization Mode
Spike / Internal Standard Mode
Manual / Manual Operation Mode
Config / System Configuration Mode;
4. Inert Treatment: All internal sample flow paths and surfaces contacting standards are inert-coated
Main functions
1. Compatible with multiple sampling modes including canister sampling, online sampling, and sorbent tube sampling. The system can be coupled with Gas Chromatography (GC) or GC-Mass Spectrometry (GC-MS) for high-sensitivity detection at ppb to ppt levels;
2. Features three-stage cryogenic trapping technology with intelligent water removal design and precise temperature control for efficient sample enrichment. Complies with international standard methods including EPA TO-14A, TO-15 and TO-17;
3. Fully inert flow path design (SilcoNert® stainless steel and fused silica materials) combined with wide-range temperature control capability (-150°C to 300°C) ensures sample integrity and prevents cross-contamination