M&C TechGroup FA Series Data sheet - Manual

M&C TechGroup Germany GmbH • Rehhecke 79 • 40885 Ratingen • Germany
[email protected] • www.mc-techgroup.com • Fon +49 2102 935-0 • Fax +49 2102 935-111
9.5
Embracing Challenge
ƒ ƒ
For wall or rail mounting
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3 operating modes
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Line break monitoring
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Alarm contact with „safety-first“
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switching and pull-in and drop-off time
lag
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LED’s for displaying operational and
fault status
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Automatically controlled luminosity of
the flow-monitoring sensor FA®
Special Features
Electronic controller series FA®
Versions FA-1.1, FA-1.4, K-FA
for flow monitoring sensors series FA® and for liquid alarm
sensor series KS®, version KS 2
FA1.1, FA1.4
Application
The M&C electronic controllers series FA®
are required for the operation of the flow-
monitoring sensors FA-1/2/3bi and FA1-H
(see 5-6.15) as well as the liquid sensor KS2
(not KS 2.Ex).
Description
The M&C electronic controllers series FA® are
available in two types of housings for wall-
mounting or rail-mounting.
Each of these types includes three operating
modes determined by the electrical connec-
tion:
• Electronic controller for flow-monitoring
in bi-stable execution in combination
with the flow alarm sensors FA-1/2/3bi.
• Electronic controller for flow-monitor-
ing in mono-stable execution in com-
bination with the flow alarm sensors
FA-1/2/3bi or FA2-H.
• Electronic controller for liquid sensor KS
2 or operation in combination with the
external pre-amplifiers K-FA and K-FA-H
(see 5-6.15) if the wiring length between
the flow alarm sensor FA.. and the elec-
tronic FA-1.. is more than 10 meters or if
strong stray electrical signals influence
the evaluation via the sensor cable.
For sure operation a line break monitoring
is integrated and for sure alarm signalling a
potential-free change-over contact with “safe-
ty-first“ switching is existing. In order to avoid
unwanted alarm signals in case of pulsating
gas flow, the alarm switch has a pull-in and
drop-off time-lag. For displaying operational
and fault status there are two LED’s.
The FA-1.. electronic controllers are balanced
in the factory for the sensors FA.. and the
measuring glass of the FM-1/10/40 flowmeter.
Additionally, the luminosity of the flow-mon-
itoring sensor FA.. is automatically controlled
in dependence on the ambient and operat-
ing conditions (lighting conditions, tempera-
ture, aging of the LED’s, contamination of the
flowmeter glass, ...).
In case of operating a bi-stable flow moni-
toring, the identification of the set flow rate
value adjusted by the optical flow alarm
sensor FA.. in the event of exceeding or fall-
ing below the present value (MIN or MAX) is
guaranteed .
In case of mono-stable operation, a statement
is only given whether the float is located in
the light beam of the optical flow alarm sen-
sor FA.. , or above it or below it.
Technical specifications and illustrations are without
obligation, subject to modifications. 10.99/06.06