M&C TechGroup FA1-H-.. 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
9.6
Embracing Challenge
ƒ ƒ
Easy mounting of the sensor head at the
flow meter without dismounting the
measuring glass
ƒ ƒ
Also applicable for very low flow quanti-
ties
ƒ ƒ
Also suitable for non-metallic or very
small floating balls
ƒ ƒ
Easy adjustment of any MIN alarm set-
point
Special Features
Optical flow monitoring series FA®
Version FA1-H-.. for temperatures up to 180 °C
with 2 light guides for monostable functioning
FA2-H, 2 x F01, K-FA-H, FA-1.1
Application
The optical flow monitoring unit with light
guides is used in gas analysis on heated
flowmeters with temperatures > 60 °C. The
measuring cones must be transparent.
Thanks to optical scanning, very low flow
quantities can be recorded even in case of
flowmeters with non-metallic or very small (1
mm) floats.
Description
The M&C flow monitoring unit FA1-H-.. con-
sists of 4 sub-assembly modules:
1. the patented sensor head FA2-H,
2. the 2 light guides FO.. for monostable
function
3. the K-FA-H pre-amplifier
4. the electronic controller FA-1.1 or
FA-1.4**
– ** see data sheet FA-.., K-FA 9.5 –
The sensor head FA2-H is assembled on the
FM1-H flowmeter by means of a pressure
screw with its stationary open prism to the
measuring glass. Assembly is simple and does
not require any disassembly of the flow-
measuring glass.
The FO1 light guide is supplied with a stand-
ard length of 600 mm. Light guide FO3 (900
mm long) and FO2 (1200 mm long) can be
supplied for greater length requirements.
The angled light-guide ends are fixed into the
FA2-H sensor head with one pressure screw
each. Two light-guides are needed for the
monostable function.
By use of the pre-amplifier K-FA-H a distance
of 200 meters between the flow meter and
the electronic controller FA-1.. (see 9.5) is pos-
sible without problems.
The LED emitters’ light beam passes through
the FO .. light guides and falls upon the
photo-transistor through the FM1-H
flowmeter measuring glass. As soon as the
float breaks the light beam, the photo-tran-
sistor is blacked out. The FA-1.. electronic con-
troller analyses this changed status accord-
ingly.
By the monostable version a MIN alarm func-
tion in the lowest sensor setting position is
guaranteed.
Technical specifications and illustrations are without
obligation, subject to modifications. 12.97/11.06