3M ET 355 用户手册

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3M Touch Systems Proprietary Information
2
Installation Addendum
Product safety information
DANGER
To reduce the risks associated with fire and explosion which, if not 
avoided, will cause death or serious injury and/or property damage:
Do not open the ET unit (or hatch, if applicable) while the circuit is live 
unless the area is known to be non-hazardous.
Do not use an external keyboard or mouse unless the area is known to be 
non-hazardous.
Do not operate the ET unit’s OSD switches, DIP switch, KVM extender 
remote board, or potentiometer on the KVM extender remote board unless 
the area is known to be non-hazardous.
Do not disconnect equipment unless power has been switched off or the 
area is known to be non-hazardous.
Do not replace the fuse unless the power has been disconnected and the 
area is known to be non-hazardous.
Do not use the ET unit in Class I, Division 1;  Zone 0; or Zone 1 hazardous 
locations.
WARNING
To reduce the risks associated with electrical shock, fire, or 
explosion which, if not avoided, could result in death or serious 
injury and/or property damage:
Follow all product and accessory installation instructions, including 
instructions for mounting the unit with a NEMA 4X panel gasket (ships with 
all ET 355 monitors) and instructions that accompany the NEMA 4X hatch 
kit.
The procedures described in this document should be performed only by 
trained personnel. Failure to perform all operations correctly could 
damage the unit and invalidate the warranty.
For servicing or other procedures not described in this document, in the 
ET 350 Monitor User’s Installation Guide, or in other ET 35X instructions, 
return the ET unit to 3M Touch Systems for servicing.
Read and understand all safety information before installing and using the 
ET unit.
Engineer the installation of the ET unit to take into account the operating 
environment (e.g., hazardous location, shock/vibration factors).
Properly install the ET unit with a NEMA 4X gasket that is clean, 
undamaged, and effective.
Do not modify the ET unit.
Do not substitute components. Substitution of components may impair 
suitability for a Class I, Division 2; Class II, Division 2; or Zone 2 hazardous 
location.
When replacing a fuse or other part, use a part of the type and rating 
specified by 3M Touch Systems.
Provide a clean, reliable ground.
Use locking devices on connectors.
To ensure compliance with electrical codes and safe operation of the 
monitor, have a licensed journeyman electrician familiar with local codes 
perform all wiring and installation tasks.
When connecting power with fixed field wiring in the NEMA 4X hatch, the 
field wiring must be double insulated. A clear, flexible insulator (supplied) 
must cover the portion of the cable that is not double insulated when 
connecting to a terminal strip connector.
After making an opening in the NEMA 4X hatch, make sure that there are 
no metal shavings in the hatch.
When installing the ET unit, ensure that specifications for supply circuit 
overcurrent protection and wiring are not exceeded.
Choose listed (UL) conduit hub or Notified Body Certified gland rated 
NEMA 4X/IP66 that is suitable for use in hazardous locations, and provide 
adequate strain relief for wiring.
Properly install the ET unit so that it is environmentally sealed to the 
NEMA 4X/IP66 standard. Do not use the ET unit with mounting options 
that are not rated for NEMA 4X/IP66 in environments that require such a 
seal. Use the NEMA 4X hatch with ET 35X monitors with heater.
If a KVM extender is used with the ET unit, the KVM local unit should be 
located in an area known to be non-hazardous.
Do not use flammable or combustible cleaners on or near the ET unit.
WARNING
To reduce the risks associated with electrical shock or fire which, if 
not avoided, could result in death or serious injury and/or property 
damage:
If the ET unit is mounted using a NEMA 4X panel gasket, install the unit in 
a Listed (UL) enclosure.
If the ET unit will be used in corrosive environments, it is the responsibility 
of the user to test and evaluate the unit in those environments. The 
monitor, as shipped, has not been evaluated for use in excessively 
corrosive environments. Using it in such environments, without evaluation 
and testing, may lead to unsafe conditions.
WARNING
To reduce the risks associated with electric shock and/or burn-
related injury that could result in death or serious  injury and/or 
property damage:
Avoid contact with connectors on power terminal strip unless the power 
has been disconnected.
Avoid exposed electrical contacts inside the ET unit.
WARNING
To reduce the risks associated with electrical shock which, if not 
avoided, could result in death or serious injury and/or property 
damage:
Make sure that the ground potential difference between the ET unit and 
the host computer is less than 2V.
Before removing the ET unit from its mounting or performing any other 
service to the monitor, disconnect power to the unit.
Provide adequate strain relief for all field wiring in accordance with Class 
I, Division 2 wiring methods Article 501-4(b) of the National Electric Code, 
NFPA 70 for installations in the U.S., or as specified in Section 18-1J2 of 
the Canadian Electrical Code for installations within Canada and in 
accordance with the authority having jurisdiction.
WARNING
To reduce the risks associated with electrical shock or mechanical 
function which, if not avoided, could result in death or serious injury 
and/or property damage:
Apply a “safe touch” setting, especially if the ET unit is running an 
application or is in a setting where safety is a concern.
Do not use a non-Windows operating system screen saver that may affect 
the “safe touch” setting and could in turn cause connected peripheral 
equipment to start or stop inadvertently.
Set the safe touch setting correctly, with the number of minutes entered 
for the Windows operating system’s energy saver being at least one 
minute greater than the time entered for the Windows operating system 
screen saver.
If your ET unit has a display power management system (DPMS) that is 
configurable from the display’s on-screen Utility menu, do not turn off the 
DPMS.
WARNING
To reduce the risks associated with electric shock and/or burn-
related injury that could result in death or serious injury and/or 
property damage:
Do not open the power supply in the ET unit. It contains hazardous 
voltage/hazardous energy. The power supply has no user-serviceable 
parts or adjustments inside.
WARNING
To reduce the risks associated with mechanical function which, if not 
avoided, could result in property damage:
Do not operate the ET unit in conditions outside of the operational 
specifications.