FLOW CHAMBER LS/LA1S PVDF0 pages

Embracing Challenge

Liquid alarm sensors series LA®
for conductive media
Version LA 1S, LA 25S and flow chambers LS, LS 25 as well as
LA 1 and LA 25 for use in hazardous aereas
LA 1S

Special Features
Sure detection even of minimal liquid

quantities

line break monitoring for LA 1S and LA

25S

Integrable in M&C-Universal filters and

flow chambers

Also versions for higher pressure and

temperatures

No electrolytic effects on the sensor

surface

Application
Liquid alarm sensors are used in gas sample conditioning systems for monitoring gas
cooling and condensate drain-off devices in
order to provide protection for downstream
analysis instruments. This simple monitoring
device reliably signals the penetration of condensate in the event of cooling or condensate
drain-off equipment being defective and thus
avoids expensive down times as well as high
repair costs for analysis instruments.
In the event of alarm, the power for the
sample gas pump or a solenoid valve is to be
switched off in the gas sample conditioning
system.

High chemical resistance
Cable length up to 100 meters

Description

The LA 25S sensor has got a 1/4» special male connector for mounting in the
FSS..-D universal filter or for mounting in
8 mm tubes using a special union tee connector LS 25.
When mounting the universal filters and the
flow chamber, the gas inlet and gas outlets
can be rotated through 180° during assembly.
For hazardous areas the sensors LA 1 and LA
25 of the former series without line break
monitoring can be used because they are
«simple components». However the sensors
than may only be used with certified control
electronics, e.g. ER142 Exi (part no. 03E2009
for 230V or 03E2009a for 115V) for intrinsically
safe supply of the sensors.

The M&C liquid sensors LA..S works on the
principle of electrical conductivity from 50
µS/cm conductance. In order to avoid electrolytic effects on the sensor surface, the sensors
are powered with alternating current.
The required electronic controller LA-1.. is
available in various versions and is described
in the separate data sheet 5-5.1.2.
Only the newly developed electronic controllers as described in the afore mentioned
data sheet from date of construction 04/2006
onwards can be used for the M&C liquid sensors LA..S.
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 sure and rapid alarm.
The LA 1S sensor is defined for operating
pressure up to 4 bar and LA 25S for up to 25
bar. The sensor protection corresponds to
type IP65 EN 60529.
The LA 1S sensor with its 12 mm diameter
glass body is mounted in the GL connection
of a F..-..-D universal filter or in the LS flow
chamber.

Technical specifications and illustrations are without
obligation, subject to modifications. 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

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