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LA-1.1, L A-1.4
Embracing Challenge
Electronic controllers series LA®
Version LA-1.1, LA-1.4
Special Features
2 mounting types
Line break supervision
2 potential free change-over contacts
Congurable alarm reset
LED’s for displaying operational and
fault status
For max. 100m sensor cable as standard
Switching point adjustable
Application
The LA-1.. electronic controllers serve to feed
and distribute the signals of the liquid alarm
sensors LA1S and LA25S.
Description
Two mounting types are available, wallmounting LA1.1 and rail-mounting LA1.4.
A line break supervision is integrated for sure
operation.
There are two LEDs for displaying operational and fault status as well as two potentialfree changeover contacts with «safety-first»
switching action for sure alarm signalling. The
electronic controllers are equipped with an
alarm reset that may be activated or desactivated. During delivery, it is not activated.
By using one of the contacts, a pump or a
solenoid valve in the gas conditioning system
can be switched directly and the second contact can be used as a status alarm.
The switching point of the electronic controller LA-1.. is adjustable via a potentiometer. At
works, a standard alignment is made.
The special electronic controller ER142 Exi
(Part no.: 03E2009/a) without line break supervision is for the intrinsically safe feeding of the
LA 1 and LA 25 sensor (old series!) located in
a hazardous area.
Technical specications and illustrations are without
obligation, subject to modications. 09.96/11.06
M&C TechGroup Germany GmbH • Rehhecke 79 • 40885 Ratingen • Germany
info@mc-techgroup.com • www.mc-techgroup.com • Fon +49 2102 935-0 • Fax +49 2102 935-111
8.2
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Dimensions
50
80
160
148
Sensor
Ø 4,3
230
115
LNPE
56
12
3
22 21 24 14 11 12
rt
gn
78
P1
210
LA 1.1 in wall mounting housing
LA 1.4 in rail mounting housing
22.8
21 24
22
NC
5 6
7 8
bn. wh.
wh.
bn.
adj.
Sensitivity
Al. Reset
Alarm
OK.
Flüssigkeitsalarm LA1.4
Liquidalarm
1211 14 NC
L/+ N/- PE PE
2 3
1
4
111
Dimensions in mm
Technichal Data
Electronic controllers type LA-1.1 LA-1.4
Part Number
230V 50/60Hz
115V 50/60Hz
24V DC
24V AC
Mounting Wall mounting housing Rail mounting housing EN 50022
Sensor inlets 1
Power consumption 2 VA 1VA
Alarm-relay (2x MC/NC/NO) 250V DC/AC 250V AC/DC
contact rating DC=50W, AC=500VA, 3A DC=45W, AC=500VA, 2A
Cable inlet 1x terminals 3mm - 6,5mm
Electrical connection terminals max. 2,5 mm2
Adjustment of switching point via potentiometer after opening of housing via potentiometer in the housing front
Distance between sensor and
electronic LA-1.. max. 100m
Line break supervision yes
Alarm reset** yes
Protection type IP65 EN60529 IP20 EN60529
Housing material Polycarbonate Polyamide PA 6.6 combustibility class VO (UL94)
Ambient temperature -25 °C to +60 °C
Dimensions B 80xL 160xH 55 mm B 22,8 x L 100 x H 111 mm
Weight 0,31 kg 0,23 kg
* Reversible distribution voltage 230V 50Hz / 115V 60Hz, at works adjusted to 230V 50Hz.
** at works desactivated
03 E 2001*
03 E 2001*
03 E 2001 d
03 E 2001 b
2x terminals 5mm - 10mm
03 E 2006
03 E 2006 a
03 E 2006 d
03 E 2006 d
8.2
M&C TechGroup Germany GmbH • Rehhecke 79 • 40885 Ratingen • Germany
info@mc-techgroup.com • www.mc-techgroup.com • Fon +49 2102 935-0 • Fax +49 2102 935-111
Technical specications and illustrations are without
obligation, subject to modications. 09.96/11.06
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