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IM-ENG-116/GB
7. I
NSTALLATION AND
C
ONFIGURATION
7.1 Operating environment
The Mux2700 HART Signal Multiplexer module rate on wide temperature and humidity ranges. It is however desira-
ble to limit the environmental stress, so to maximise the expected life time. It is therefore recommended not to ope-
rate the unit near the specified high-temperature limit for long periods of time.
In addition, you should remember that high humidity (above 60%), when in conjunction with corrosive atmosphere
and/or temperature stresses, can result in corrosion, with bad effects on connectors contact quality.
The Mux2700 HSM was carefully tested according to the specified EMC (electromagnetic compatibility) standards.
The verifications were either carried out by certified test houses or internally by using equivalent test set-ups.
Comprehensive reports were always used to register test results.
The compliance with the relevant standards is not however such to always guarantee the proper unit behaviour
regardless of the operating environment and of the specific system configuration. The following guidelines are use-
ful minimise this type of risk:
•
all system units should carry the CE mark and comply with the related EMC standards;
•
when a strong RF noise is expected, use screened and rly grounded I/O cables;
•
don’t run I/O cables side by side with potentially noisy system wiring;
•
avoid ground loops as much as possible and use proper grounding end earthing techniques.
7.2 DIP-switch configuration
The configuration DIP switches located at the top of the unit as shown in the following drawing. (Fig. 7a-7b and the
address setting tables at page 18).
PWR
ON
MUX
2700
FAUL HART TX
BAUD RATE
TEST
ADDRESS
SW1
SW2
SW3
SW4
SW5
SW6
SW7
SW8
ON
OFF
F
IG
. 7
A
F
IG
. 7
B
MUX
2700
ELCON INSTRUMENTS
I N T R I N S I C S A F E T Y a n d S P E C I A L I S T S
Ch.1
RS-485
SERIAL LINE
Ch.32
HART
®
DEVICES
B
A
GND
I
P
I
P
+
