ROBWAY RCI-4100, Эксплуатация и установка

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SAFETY AND INSTALLATION INSTRUCTIONS
RCI-4100 DISPLAY AND ISOLATING BARRIER SYSTEM
MAN-1111 Rev H ©Copyright 2015 LSI-Robway Pty Ltd Page 85
OPERATION
The LSI-Robway Model 4100 Display is intended to be used with the Model 4120 Display Barrier. The Model
4120 Barrier provides isolated power to the Model 4100 display and also an isolated intrinsic safety barrier
for I2C communications from a host data system located in a safe area.
Proper operation of the 4100 Display is indicated by the LCD backlights being illuminated and the alarm
sounding. If a data system is connected and functioning properly then digits will also appear on the display
according to the relevant system manual. If normal operating conditions are not apparent when 24 VDC
nominal is applied to the system then the 4100 display and/or the 4120 Isolating Barrier must be considered
faulty and may only be repaired or replaced by qualified personnel after the system fault is determined and
rectified.
INSTALLATION
Display
The 4100 Display is a Group IIB Ex ib device is housed in an IP65 style enclosure; however it is only
intended to be mounted in a location protected from direct weather and condensing humidity. The 4100
Display is not certified to IP65 protection levels.
A gimballed mounting arm is provided for securing the 4100 Display to a dash panel or other solid mounting
surface. Other mounting methods may be possible however the 4100 Display must be mounted securely
and the integrity of the enclosure must be maintained. The 4100 display is not certified for use as a portable
device.
The 4100 Display has a captive cable supplied which meets the specified cable parameters. Inside the 4100
Display is a 4-pole terminal block from which the cable may be disconnected for ease of cable routing or
shortening of the cable. This cable may only be lengthened after it is determined that the cable parameters
do not exceed allowable parameters. Although the 4100 Display and Barrier may function satisfactorily, the
4100 Display and Barrier system is not warranted for operation with longer cable than supplied. Consult
factory if longer cable runs are desired.
If the 4100 display cable is to be shortened and re-attached at the display end, the cable conductors must be
stripped and terminated in an identical manner as originally supplied. Generally speaking the cable must be
installed in a secure manner and protected from physical damage along its entire length. The 4100 Display
cable must be segregated from non-IS conductors and wired in accordance with relevant national and
international installation standards.
Although the 4100 Display earth strap is not required to meet the intrinsic safety certification it should be
connected to a suitable earthing point which is determined to have a reliable path to earth. The earthing
strap is required to provide a higher level of noise and transient immunity.
A vinyl dust-cover with transparent window is offered as a factory option however it is not covered under the
4100 Display IECEx Ex ib certification and must be considered to be a static hazard. The dust cover can
only be used in accordance with relevant national/international installation standards.
Isolating Barrier
The 4120 Isolating Barrier does not require an earth for its protection. If using the 4120 Isolating Barrier in
an “explosion-proof” enclosure the appropriate “explosion-proof” cable gland must be used and
manufacturer’s instructions followed. The Um of the 4120 Isolating Barrier “Safe” terminals is 250 Vrms.
The 4120 Isolating Barrier must not be connected to any equipment which is connected to or can produce a
voltage higher than 250 Vrms.
Warning
The 4100 Display provides a minimum IP 20 protection. If the 4100 Display is to be installed outdoors then
additional protection is required.
If either the 4100 Display or 4120 Isolating Barrier enclosure needs to be cleaned use a slightly dampened
anti-static cloth to avoid static discharge risk. Avoid any penetration of cleaning fluids into either enclosure
as this could effectively bypass intrinsic safety protection measures.