425 Series0 pages

425 SERIES
CONTINUOUS PROCESS
THERMAL CONDUCTIVITY
ANALYZER FOR BINARY
GAS MIXTURES
APPLICATIONS
For continuous analysis of many binary gas mixtures comprised of H2,
CO2, O2, CH4, SO2, Ar, He, NH3, SF6, air, and others. Applications
include heat treating atmospheres, welding gas mixtures, blanketing
gas mixtures, ammonia synthesis, leak detection, purge monitoring,
flue gas, magnesium blanketing by SF6, and others.

FEATURES
• Bright digital readout
• Lower cost than infrared, GC, or mass spectrometer
• High stability, microprocessor-controlled, long-life thermal
conductivity (TC) cell
• Easy-to-maintain modular layout
• Built-in sample pump or pressure regulator
• 4 - 20 mA output
• Sensors temperature controlled for maximum stability

Explosion-Proof (N7MC) Enclosure

OPTIONS
• Hi/Low gas, low flow, and diagnostic alarms available
• Isolated 4-20mA, RS232, RS485, MODBUS®, and Ethernet
outputs available
• Cabinet purge system available for use in hazardous areas
• Automatic calibration with touch screen LCD display
• Cold weather package for operation to -5°F (-20°C)
• Cabinet coolers can be fitted to most models

CALIBRATION

Wall Mount (N4) Enclosure

• Air or nitrogen for zero
• Analyzed calibration gas for span

NOVA ANALYTICAL SYSTEMS
www.nova-gas.com

www.nova-gas.com