ENDEVCO 6634C
INSTRUCTION MANUAL
IM6634C
Page 2-3
B.
LOCAL MODE
In the LOCAL Mode, the front panel displays the vibration amplitude of the DC Output in a fixed decimal format
(decimal point fixed by the selected full scale). The OUTPUT LEDs show the selected output in Engineering Units
(AC Output unit = g, ips, or mils), and the type of indication on the DC Output (RMS, average, or peak [pk-pk for
displacement]). The ALARM LEDs illuminate when the DC output exceeds the Warning or the Alert Alarm levels.
The digital display shows a flashing OL whenever the AC or DC Output is overloaded.
In LOCAL Mode, any of the programmed settings can be displayed by pressing the appropriate key on the front
panel keypad. Pressing <ENTER> accepts the displayed setting and reverts to normal display. Alternately, the
display reverts to normal mode after about 20 seconds. The following table lists the possible responses to pressing
the various keys (items marked * only operate with optional filter installed, items marked ** only operate with
optional serial interface installed). Pressing <ENTER> executes selection.
SINGLE KEYPRESS:
UNIT RESPONDS WITH:
TYPE
SEPE
Single-Ended PE
DIFF
Differential PE
UEL
Velocity Coil
EPE
RCC Input (if installed)
SENS
Digital Display shows Input Sensitivity
DC OUT
Flashes DC Output Type (RMS, avg, pk) LED
MODE
Flashes AC/DC Output Units (g, ips, mils) LED
FS
Digital Display shows Full Scale Output
IN/OUT*
Digital Display shows Filter In or Out
UPPER CUTOFF*
Digital Display shows Cutoff (-3 dB) Frequency
LOWER CUTOFF*
Digital Display shows Cutoff (-3 dB) Frequency
ALARM WARNING
Digital Display shows Warning Setting (% FS)
ALARM ALERT
Digital Display shows Alert Setting (% FS)
RESET
Pressing RESET resets both alarm settings
MULTIPLE KEYPRESS:
UNIT RESPONDS WITH:
<ENTER><3>**
Digital Display shows Serial Interface Address
<ENTER><1>
Store Setup to Non-volatile Memory
<ENTER><6>
Recall Setup from Non-volatile Memory
<ENTER><Reset>
Lock/Unlock Keyboard
By checking the programmed settings, the current state of the unit (stored in Non-Volatile Memory) is determined.
Setups can be stored and recalled from Non-Volatile Memory. Any present setup can be stored to one of 10
registers by pressing <ENTER> then <1> to activate Storage Mode. The display flashes "Str" to indicate Storage
Mode. Pressing a register number (0 through 9) and <ENTER> while the "Str" is flashing stores the setup and
returns unit to normal mode. (The unit automatically returns to normal mode if no key is pressed.) Similarly, any
one of the 10 setups can be recalled by pressing <ENTER> then <6> to activate recall mode. The display flashes
"rCL" to indicate recall mode. Pressing a register number (0 through 9) and <ENTER> while the "rCL" is flashing
recalls the selected setup and returns the unit to normal mode.
The keyboard can be locked-up to prevent accidental setup changes. Pressing <ENTER> then <RESET> will
lock-up the keyboard. Pressing <ENTER> then <RESET> again will unlock the keyboard. When the keyboard is
locked-up, only the <ENTER> and <RESET> keys are operational, and the display shows "dbL" (disabled) for a
few seconds. When the keyboard is unlocked, the display shows "EbL" (enabled) for a few seconds.
