Show Instrument Schematic

Unit [n] > Enable Manual Control

Unit [n] > Show Instrument Schematic

Enable Manual Control

Gas Pathways

Standard
Cooler

Trap Heater
CryoCooler
   
   

Vapor
Generator

Analysis Valve Descriptions
Valve Description
1 through 6 Reference and carrier gas inlet ports
11 through 16 Loop gas inlet ports
17 through 26 Preparation gas inlet ports
Analyzer Schematic Icons
Icon or Symbol Description
AutoCool. Displays only if a CyroCooler is not installed.

Auxiliary Port. Connect an external detector (such as a mass spectrometer) to the analyzer. It cannot be manually controlled.

Closed Valve. Yellow indicates a closed valve. When manual control is disabled, closed valves appear white.

CryoCooler. Displays only if installed. The CryoCooler rate can be set from 0 to 100%.

Blue. Indicates the Dewar is full

Red. Indicates the Dewar is empty. When the rate speed is set to 100%, the Dewar displays as red and empty, a warning light illuminates, and the pump will beep continuously.

Yellow. Indicates Dewar level is unknown and rate is set to zero (for CryoCooler III installations only).

Detector Heat Zone. Set the detector heat zone by clicking anywhere in the orange box. Set the Filament Temperature by clicking the detector rectangle on the right side of the schematic.
External Trigger. Controls the contact closure used to trigger an external mass spectrometer.

Furnace. Controls the sample furnace temperatures and cooling level.

  Sample or Furnace temperatures significantly above 1100 °C will cause accelerated wear on furnace components and lead to premature failure of the furnace. Temperatures should be set at or below 1100 °C, or operator should minimize time operating above 1100 °C.

Gas Inlet Valves. The inlet displays the gas mnemonic if one is assigned. Right-click the inlet valve to open or close the valve.

Heat Zones. Controls the temperature of various parts of the analyzer. Component heat zones are enclosed with an orange rectangle. Click a heat zone icon to display the current temperature and the target temperature. Right-click the icon, then select Set Temperature to change the heat zone’s target temperature. Using the default temperature (110 °C) for all heat zones is recommended to ensure a cleaner system.

The trap heat zone controls the temperature of the trap valve.

Mass Flow Controller. Controls the flow of gas into the analyzer. The MFC target and flow rate are displayed. Right-click and select an option:

  • Open. Fully opens the MFC.
  • Close. Closes the MFC to stop gas flow.
  • Set. Displays the applicable Mass Flow Controller dialog box in which you can open the controller, close the controller, or set the flow rate.

  • Zero. Sets the MFC to read zero flow under current conditions.
  Zeroing a mass flow controller while gas is flowing will cause inaccurate readings. See Experiment Steps, Zero Mass Controller.

Open Valve. Green indicates an open valve.

Pressure Transducer. Displays the current pressure in the carrier gas path, upstream from the septum but downstream from the Mass Flow Controller. It cannot be manually controlled.

Rotary Valve. Controls the gas flow through the trap, sample tube, loop, and optional vapor generator. Select the needed state. From left to right, the valves and their states are:

  • Trap. Bypass, Trap
  • Analysis. Analyze, Prepare
  • Loop. Fill, Inject
  • Vapor. Vapor, Bypass (optional)

Sample Furnace. Controls the temperature of the sample. Click to display the sample temperature, the target temperature, the furnace temperature, and the ramp rate. Right-click the icon and select Set Temperature to change the Set Point and/or the Ramp Rate.

Sample Temperature. Controls the sample Target temperature.

Trap Heater. Controls the temperature and ramp rate.

Valve Temperature. Controls the Target temperature.

Vapor Flask. Controls the Target temperature.

Vapor Reflux. Controls the Target temperature.

Instrument Schematic Shortcut Menus

Schematic Shortcuts
Icon or Symbol Description

Valve options

Close. Closes the selected valve.

Open. Opens the selected valve.

Temperature control options

Select Set Temperature to modify furnace or heater settings.