Introduction
New product---GNL-B3/GNL-YF1 analyzer (only for wave soldering oven and reflow soldering oven) breaks through traditional magneto mechanical measurement mode and measures oxygen concentration without benchmark gas by adopting conversion ion current with the world advanced technology as measurement principle. It has observable characteristics of long calibrating period, high precision, small appearance and low power consumption.

Features
New pattern, long-life, conversion ion current tester with fast response and high sensitivity
Concise menu, simple operation
Checking the sensor working state automatically and unique double-line working change mode extending the sensor's life
Setting upper and lower alarm values freely during the measure ranges
4-20mA or 0-5V DC signal outputs
It can achieve two-way communication by connected to a computer via the standard RS232C or RS485 interface.

Technical Specifications
Measure Range: 0-10ppm, 0-100ppm, 0-1000ppm, 0-25% O2; Auto-ranging
Accuracy: ±0.5ppm in the range of 0-10pppm;
±1ppm in the range of 0-100pppm;
±2ppm in the range of 0-1000pppm;
±1% in the range of 0-25%
Stability: Zero drift ¡Ü±1%FS/7d
Span drift ¡Ü±1%FS/7d
Contact Capacity: 125VAC 0.3A, 110VDC 0.3A, 30VDC 1A
Repeatability: ¡Ü±1%
Response Time: 90% of FS reading ¡Ü10 seconds
Sampling System: Film sampling pump or inner minus pressure system
Sample Gas Flow: 200~300ml/mim
Ambient Temp.: -10~+50ºC
Power Supply: 85V-265V AC, 50Hz±5%
Sensor Life: 36 months at 25ºC and 1 ATM
Warranty: 12 months analyzer; 12 months sensor
Weight: 3kg
Installation Dimension: 133mmx270mmx300mm (GNL-B3)
(WxHxD) 125mmx200mmx300mm (GNL-YF1)

Applications
It can be used to measure the oxygen concentration in the fields of magnetic materials, high temperature sintering furnace, the electronics industry protective gas.

Order knowledge
Measure range
Tested gas pressure
Gas composition and impurity.