M&C LA Series - Description

www.mc-techgroup.com LA | 1.01.01 9
Electronic Controller Series
LA
®
Type
LA1.1
LA1.4
Part No.
230 V 50/60 Hz
115 V 50/60 Hz
24 V DC
24 V AC
03E2001*
03E2001*
03E2001*d
03E2001*b
03E2006
03E2006a
03E2006d
03E2006d
Mounting
Wall mount housing, rail mount housing EN 50022
Sensor inlets
1
Power consumption
2 VA
1 VA
Alarm-relay (2x MC/NC/NO)
contact rating
250 V DC/AC
DC=50 W, AC=500 VA, 3 A
250 V DC/AC
DC=45 W, AC=500 VA, 2 A
Cable inlet
1 x terminal range 3 – 6.5 mm
2 x terminal range 5 – 10 mm
Electrical connection
Terminals max. 2.5 mm
2
Adjustment of switching point
Via potentiometer inside the
housing (open housing first)
Via potentiometer located at the
front of the housing
Distance between sensor and
electronic LA1..
Max. 100 m [328 ft]
Line break control system
Yes
Alarm reset**
Yes
Protection type
IP65 EN 60529
IP20 EN 60529
Housing material
Polycarbonate
Polyamide PA 6.6 combustibility
class VO (UL94)
Ambient temperature
-25 to +60 °C [-13 to 140 °F]
Dimensions (W x H x D)
80 x 55 x 160 mm
[approx. 3.1” x 2.2” x 6.3”]
22.8 x 100 x 111 mm
[approx. 0.9” x 3.9” x 4,4”]
Weight
0.31 kg [approx. 0.7 lb]
0.23 kg [approx. 0.5 lb]
Reversible distribution voltage 230 V 50 Hz/115 V 60 Hz, factory adjusted to 230 V 50 Hz.
** Factory deactivated
9 DESCRIPTION
The M&C liquid sensors LA..S works on the principle of electrical conductivity from 20 µS/cm
conductance. In order to avoid electrolytic effects on the sensor surface, the sensors are powered with
alternating current.
NOTE!
For the M&C liquid sensors LA...S, only the newly developed controller
electronics from model year 04/2006 described in this instruction manual can
be used.
The M&C LA...S liquid sensors are constructed in such a way that any droplets of liquid in the sample
gas are attracted under gravity to the sensor surface and even the smallest liquid droplets trigger a
reliable and fast alarm.
The LA1S sensor is designed for operating pressures up to 4 bar and LA25S for up to 25 bar. The
sensors housing protection corresponds to type IP65 EN 60529.