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• Press the Read button to initiate a single reading.
• Press the Auto button to initiate multiple readings.
• Press the Stop button to stop current flow reading and open valve.
• Press the Reset button to clear the display of current data.
8.5 Setting User Preferences
The Sierra Cal=Trak offers enhanced electronics options that allow the user to define parameters specific to their application. There are six
Setup Menus in all. For a comprehensive flowchart of the complete menu tree, please see Appendix B.
General Menu Navigation
Use the Up/Down arrows to navigate between different lines within a menu. Use the Enter button to select a field to be modified and to
lock in any changes. Use the keypad for data entry such as # of readings in an averaging sequence; use the Up/Down arrows to toggle fields
such as temperature or pressure units. Use the Fwd and Back keys to advance to the following menu or return to the previous menu.
Keypad Function
The keypad is used for both numeric and alpha character entry. When pressed, each alphanumeric button will display its corresponding
number. If pressed again within two seconds the unit will display the first corresponding letter for that key. Repeat this process for
additional letters on the same key. A space may be inserted by pressing the 0 key twice. To go back, use the back arrow. The Cal=Trak will
overwrite previous entries. Use the Enter key to lock in any selections.
8.6 Setup Menu 1, Calibration ID #, Gas Constant, Calibration Type
To enter “Setup Menu – 1” from the “Main Menu”, select Setup and press Enter.
Option 1, “Sensor Factor”
This option changes the gas constant or K-factor for instruments that are used with any gas other than air or nitrogen, but originally
calibrated by the device manufacturer using air or nitrogen and a factor. Gas conversion factors vary by device manufacturer. Please consult
the instrument manufacturer’s gas conversion multipliers for the device under test and enter the appropriate factor here. The input range for
this option is 0.200–2.000. The default setting is for 1.000, the setting for air or nitrogen.
Ma
i
n Menu
Run
Setup
Leak Tes
t
Setup Menu
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1
Sensor Factor 1.000
Cal. Type Std.