Show Instrument Schematic

  1. Preparation gas MFC
  2. Cold trap valve heat zone
  3. Analysis heat zone
  4. Detector heat zone
  5. Auxiliary port
  6. Loop valve heat zone
  7. Septum
  8. Loop gas MFC
  9. Carrier gas MFC
  10. Reference gas MFC
  11. Inlet valves
Analyzer Schematic Icons
Icon or Symbol Description
Auxiliary I/O. Lists the current auxiliary settings for Digital and Relay Output (DO and RO) and Digital Input (DI). The current Auxiliary 1 and Auxiliary 2 signals are also displayed if recorded. See Auxiliary Inputs and Outputs.

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

Calibration Valves. Used during automatic calibration processes. Generally, it is not necessary to change the state of the calibration valves.

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

CryoCooler. Displays only if installed. The CryoCooler speed 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.

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

KwikCool. Displays only if installed.

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.

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 cold trap, sample tube, loop, and optional vapor generator. Select the needed state. From left to right, the valves and their states are:

  • Cold 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.
Septum. Makes manual injections of gas into the gas stream.

 

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.