Figure 8 Opening The Front Panel; Figure 9 Internal Dfu - Teledyne T640 Standard Operating Procedure

2. Remove screws at sides of front panel, if installed.
3. Pull open the instrument's front panel, using the front panel finger grips (Figure 7)
4. Noting its orientation, remove the old DFU by detaching from the pneumatic quick- connect
fittings, and replace with a new DFU matching the orientation (Figure 8).
5. Power on the internal pump from the control menu: Setup> Vars> Pump > Edit> Auto
>Done.

Figure 8 Opening the Front Panel

Figure 9 Internal DFU

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DEP 03-21
Revision No. 0
November 2017