Manual

Introduction Model 2120
• Specialty Gas Laboratories
• Specialty Steel Manufacturing
• Gas Management/Monitoring Systems
• Quality Control for Truck Fills & Gas Cylinders
• Process Control
• New Line Certification
• Chemical Plants
• Welding Gas Management
• Semiconductor Manufacturing
1.3 Features
The Model 2120 comes equipped with the following standard
features:
• Digital Panel Meter—convenient and immediate display of the
current sample analysis.
• Indicator lights—front panel mounted LEDs provide instrument
status information at a glance.
• Overrange Protection—alarm contacts and LED.
• Range ID Contacts—outputs for range identification.
• Range Switch—allows for convenient switching between
analysis ranges from the front panel.
• Zero and Span Controls—front panel mounted controls for
calibration.
• PMT Voltage Adjustment Potentiometer—voltage adjustment
for photomultiplier tube.
• Sample Flow Rotameter—for monitoring sample flow through
the analytical cell.
• VCR Fitting—sample-in port connection fitting designed for
leak-free sample delivery and analysis at trace levels.
• Optical Filter—optical filters for wavelength of impurity
emission.
2 Teledyne Analytical Instruments