YJJ AsH3 3E 3E 1 LT Electrochemistry 0-1ppm Arsenic Gas AsH3 Special Sensor Monitoring Trace Leakage

Product Description:

YJJ AsH3 3E 3E 1 LT Electrochemistry 0-1ppm Arsenic Gas AsH3 Special Sensor Monitoring Trace Leakage

Features:

I. Core Parameters (Original Factory Specifications)

Model: AsH₃ 3E 1 LT

Detected Gas: Arsenic Hydride / Trihydridorhodium AsH₃ (Extremely Toxic)

Range: 0–1 ppm (Complies with AsH₃ Occupational Limit of 0.05 ppm)

Maximum Overrange: 20 ppm

Principle: Three-electrode Electrochemistry, Ion Liquid Electrolyte (Resistant to Drying, Stable)

Sensitivity: 1400 ± 450 nA/ppm

Resolution: ≈15 ppb (Special Circuit)

Response Time T90: < 30 s

Baseline Offset (Clean Air): < ±20 nA

Zero Point Drift (-40 to +50°C): < ±40 ppb

Repeatability: < 2% Signal

Linearity: < 10% Full Range

Load Resistance: 1.5 kΩ; Bias Voltage: 0 V

Operating Temperature: Continuous -20 to +40°C; Intermittent -40 to +50°C

Humidity: 10–95% RH (No Condensation)

Pressure: Atmospheric Pressure ±10%

Life: 2 Years (In Air)

Package / Size: 4 Series / 7 Series / Mini; Material: PPO Noryl; Weight ≈ 4.5 g

Features: H₂S-Free Version (Corresponding to 3E 1 F LT as with H₂S Filter)

II. Main Applications and Usage Scenarios

AsH₃ is a highly toxic, colorless, garlic-like combustible gas. Even a small amount can be fatal. It is strictly controlled in industry.

Semiconductor Manufacturing (Most Core)

Silicon Doping, Epitaxy, Ion Implantation, MOCVD Process; Real-time Monitoring of AsH₃ Cylinder / Pipeline Leakage

Photovoltaics / Silicon Materials

Polycrystalline Silicon / Monocrystalline Silicon Purification, Gallium Arsenide (GaAs) Semiconductor Material Production

Chemical / Special Gases

Organic Arsenic Synthesis, AsH₃ Storage / Transportation, Laboratory Gas Safety Cabinet

Environmental and Occupational Safety

Microscopic Monitoring of AsH₃ at Factory Boundaries, Compliance with Occupational Health Regulations (OSHA 8h TWA 0.05 ppm)

Equipment Compatibility

Fixed Detectors, Portable Instruments, Transmitters (4–20mA), Multi-Gas Controller

III. Key Advantages

Ultra-High Sensitivity: 0–1 ppm Range, ppb-level Detection, Precise Warning of Toxic Leakage

Long Stable Resistance to Drying: Ion Liquid Electrolyte,, Small Drift, 2-Year Lifespan

Fast Response: T90 < 30s, Timely Alarm

Industrial Grade Reliability: Wide Temperature Humidity Range, Compatible with Harsh Conditions

IV. Model Differences (Purchase Attention)

AsH₃ 3E 1 LT: Standard Version, No H₂S Filter, General Scenarios

AsH₃ 3E 1 F LT: With H₂S Filter (200ppm·h), For Use in Environments Containing H₂S

Specifications: