SKF CMSS 785 Series User Manual Download Page 6

Page: 6 / 52

Rules to follow

1.2 Important precautions

Be sure to observe the following instructions for safe use of this unit.

Prohibited actions

DANGER

Never disassemble or modify this unit.

Do not use the unit under conditions outside the limits detailed
in the specifications. Doing so may lead to equipment failure,
fire, or personal injury.

C AUTION

Do not use transceivers and other radio equipment/cellular
phones in close proximity to this unit. If it or the signal cables are
exposed to EMI (Electromagnetic Interference), the unit may not
satisfy the precision and performance characteristics indicated
in the specifications.

DANGER

When installing this unit, be sure to follow the procedures
described in sections 4 and 5. If the procedures indicated are not
followed, it may lead to failures of the unit, fires, or personal
injury.

C AUTION

• Before operating this unit, be sure to also read the instruction

manuals for instruments that will be connected to this unit (IMx/
monitoring equipment).

• Installation work, wiring and connections must be performed by

a person with appropriate knowledge of and experience in,
instrumentation systems.

• Before physically handling this unit, be sure to touch a grounded

metal item to discharge any static electricity. The device may be
damaged if exposed to static discharges.

• Do not perform insulation resistance measurements or voltage

endurance tests at locations other than those with insulation
resistance and voltage endurance specifications indicated. Doing
otherwise, may damage the unit.

• If performing a megger test (insulation test) of the signal trans-

mission cable, always disconnect the cable from the unit and the
monitor. When reconnecting the cable, first short it to ground so
as to discharge any remaining potential. Connecting cables to
the unit or the monitor in a charged condition, may damage that
equipment.

• Perform the following measures to ensure the stability of the

system.

–

Be sure to install surge suppressors for each and every relay
used in the vicinity of this system.

–

Include provision for the measuring loop to be bypassed or
inhibited at the monitoring system so that maintenance/fault
finding can be performed.

• If there is any likelihood of EMI (interference), the driver should

be placed inside an EMC shielding enclosure. Section 4.2 shows

a typical arrangement with probe and monitor cables also run
within grounded conduit.

• If any one of the following conditions occurs, stop using the unit

and contact support.

–

There is a strange odor coming from the unit.

–

It is heating up abnormally.

–

If the unit has been dropped.

–

The casing of the unit has been damaged.

Continuing to use the unit in an abnormal condition may result in
fires or further failures.
• Store this unit in a location away from direct sunlight, under the

following conditions.

–

Temperature within the range: –40 to 80 °C

–

Humidity: 30 to 95% RH (no condensation)

Do not store in a location exposed to high temperatures and/or
humidity, or where corrosive gasses are present.