Murphy CSS Série Notice D'installation page 4

Ü
WARNING:
STOP THE MACHINE AND DISCONNECT ALL ELECTRICAL POWER BEFORE
BEGINNING INSTALLATION
The CSS Series are sensitive to shock and vibration
in all three planes of motion - up/down, front/back and
side/side. Front/back is most sensitive.
The CSS Series must be firmly attached / mounted to
the machine so that all mounting surfaces are in rigid
contact with the mounting surface of the machine.
For best results, mount the instrument in-line with the
direction of rotating shafts and near bearings, in other
words, the rest push button should be mounted
pointing into the direction of shaft rotation. It may be
necessary to provide a mounting plate or bracket to
attach the CSS Series to the machine. The mounting
bracket should be thick enough to prevent induced
acceleration/vibration upon the CSS Series. Typically
13mm thick plate is sufficient.
Ü
WARNING:
STOP
DISCONNECT ALL
BEFORE BEGINNING INSTALLATION.
1. Firmly secure the unit to the equipment using the
base foot mount. For oil well pumpjacks attach the
CSS Series to the Sampson post or walking beam.
2. Make the necessary electrical connections to the
vibration switch. See Typically Wiring Diagrams. DO
NOT EXCEED VOLTAGE OR CURRENT RATINGS
OF THE CONTACTS. Follow appropriate electrical
codes/ methods when making electrical connections.
Be sure that the run of electrical cable is secured to
the machine and is well insulated from electrical
shorting. Use of conduit is recommended.
NOTE: If the electrical cable crosses a pivot point such as
the pivot of the walking beam, be sure to allow enough
slack in the cable so that no stress is placed on the cable
when the beam moves.
If conduit is not used for the entire length of wiring,
conduit should be used from the electrical supply box
to a height above ground level that prevents damage
to the exposed cable from the elements, rodents etc.
Or as otherwise required by applicable electrical
codes. If conduit is not attached directly to the CSS
Series switch use an approved cable gland and a
weatherproof cap on the exposed end of the conduit.
A "drip loop" should be provided in the cable to
prevent moisture from draining down the cable into
the conduit should the weathercap fail.
INSTALLATION
THE MACHINE AND
ELECTRICAL POWER
4
Sensitivity Adjustment
Ü
WARNING:
REMOVE ALL POWER BEFORE
OPENING THE ENCLOSURE.
RESPONSIBILITY TO
PERSON PERFORM ADJUSTMENTS AND MAKE
SURE IT CONFORMS WITH LOCAL CODES. DO
NOT ADJUST SENSITIVITY WHILE THE MACHINE
IS RUNNING. STAND CLEAR OF THE MACHINE
AT ALL TIMES WHEN IT IS OPERATING.
All models of the CSS Series cover a wide range of
sensitivity. Each model is adjusted to the specific
piece of machinery on which it is installed. After the
switch has been installed in a satisfactory location
the sensitivity adjustment must be increased or
decreased so that the switch does not trip during
start up or under normal operating conditions. This
is typically done as follows
1. REPLACE THE COVER.
2. Press the reset push button to engage the
magnetic latch. On the CSS Series the reset push
button will remain depressed, meaning the magnetic
latch has engaged.
3. Start the machine.
4. If the instrument trips on start-up, allow the
machine to stop. Turn the sensitivity adjustment ¼
turn clockwise.
Ü
WARNING:
MAKE
HAZARDOUS BEFORE OPENING THE FLAME -
PROOF ENCLOSURES.
Depress the reset push button and restart the
machine. Repeat this process until the unit does not
trip on start-up.
5. If the instrument does NOT trip on start-up, stop
the machine. Turn the sensitivity adjustment ¼ turn
counter-clockwise. Repeat the start-up/stop process
until the instrument trips on start-up. Turn the
sensitivity adjustment
sensitive). Restart the machine to verify that the
instrument will not trip on start up.
6. Verify that the unit will trip when abnormal
shock / vibration exists.
1032X4LN
Revised 05-99
Section 20
YI5152
IT IS YOUR
HAVE A QUALIFIED
THE AREA NON-
¼ turn clockwise (less