ENDEVCO 6634C
INSTRUCTION MANUAL
IM6634C
Page 3-4
4.
OUTPUT AND DISPLAY SETTINGS
The Model 6634C can be set to provide display and outputs in a variety of engineering units.
At power-up, the outputs are set to the default settings which were previously stored in non-volatile memory. The Digital
Readout displays the vibration amplitude corresponding to the DC Output with the decimal point fixed by the output full
scale setting.
A.
MODE
Pressing MODE in the Normal Mode will flash the AC and DC Output engineering unit LED corresponding to the
present setting ("g", "ips", or "mils") of the 6634C. While the Mode is being indicated, the ALARM and Digital
Readout displays are off.
To change the present setting, press MODE again. The display will scroll to another output choice each time
MODE is pressed. When the desired choice is displayed, press ENTER. The new output engineering units choice
is implemented, and the unit returns to Normal Mode. The unit automatically returns to Normal Mode if no key is
pressed for about 20 seconds. Different Output engineering units can be selected for each input type (PE,
Velocity Coil, RCC Input). The new output choices are stored as the defaults for each input type in non-volatile
memory.
B.
DC OUT
Pressing DC OUT in the Normal Mode will flash the DC Output unit LED corresponding to the present setting
("RMS", "AVG", or "PK") of the 6634C. While the DC OUT is being indicated, the ALARM and Digital Readout
displays are off.
To change the present setting, press DC OUT again. The display will scroll to another output choice each time
DC OUT is pressed. When the desired choice is displayed, press ENTER. The new output choice is
implemented, and the unit returns to Normal Mode. The unit automatically returns to Normal Mode if no key is
pressed for about 20 seconds. Different DC Output units can be selected for each input type (PE, Velocity Coil,
RCC Input). The new output choices are stored as the defaults for each input type in non-volatile memory.
C.
FULL SCALE
Pressing F.S. in the Normal Mode will cause the Digital Readout Indicator to flash the present Full Scale setting of
the 6634C. At the same time, the Output Display LED flashes the engineering unit and the DC Output unit LED
flashes "pk" ("pk-pk" for displacement). While the Full Scale is being indicated, the ALARM display is off.
To change the present setting, type in the desired Full Scale using the numeric keys. The display will flash the numbers
entered. If an illegal value is entered, the display flashes ERR1, indicating that a new value should be reentered. When
the desired entry is displayed, press ENTER. The new Full Scale is implemented, and the unit returns to Normal Mode.
The unit automatically returns to Normal Mode if no key is pressed for about 20 seconds. Different Full Scale settings can
be selected for each input type and output mode. The new Full Scale settings are stored as the defaults for each input
type and output mode in non-volatile memory.
The allowable Full Scale ranges are as follows:
Acceleration
2.00 to 200 g pk
Velocity
1.00 to 100 ips pk
Displacement
0.500 to 50.0 mils pk-pk
