M&C TechGroup LA 1.4 Operator's manual
Operating Manual
Liquid alarm sensors for conductive media Series LA
Version LA 1S and LA 25S
and flow chambers LS and LS 25
with electronic controllers LA 1.1, LA 1.4
®
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This Operating Manual does not claim completeness and may be
subject to technical modifications.
© 01/2006 M&C TechGroup Germany GmbH. Reproduction of this
document or its content is not allowed without permission from M&C.
LA® is a registered trade mark.
2nd Edition: 05/07
Dear customer,
we have made up this operating manual in such a way that all necessary information about the
product can be found and understood quickly and easily.
Should you still have any question, please do not hesitate to contact M&C directly or go through your
appointed dealer. Respective contact addresses are to be found in the annexe to this operating
manual.
Please also contact our homepage www.mc-techgroup.com for further information about our
products. There, you can read or download the data sheets and operating manuals of all M&C
products as well as further information in German, English and French.
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Contents
1 General information .................................................................................................................... 4
2 Declaration of conformity ........................................................................................................... 4
3 Safety instructions ...................................................................................................................... 5
4 Warranty ....................................................................................................................................... 5
5 Used terms and signal indications ............................................................................................ 6
6 Introduction .................................................................................................................................. 6
7 Application ................................................................................................................................... 7
8 Technical Data ............................................................................................................................. 7
9 Description ................................................................................................................................... 8
10 Receipt of goods and storage .................................................................................................... 8
11 Installation instructions and Dimensions ................................................................................ 9
12 Mounting .................................................................................................................................... 11
12.1 Pre-assembly at works in case of complete control units .................................................. 11
12.2 Mounting of the sensor LA 1S into the universal filter ........................................................ 12
12.3 Mounting of the sensor LA 1S into the flow chamber LS .................................................... 12
12.4 Mounting of the Sensor LA 25S onto the Universal filter .................................................... 13
12.5 Mountage of the Sensor LA 25S into the flow chamber LS 25 ........................................... 13
13 Supply connections .................................................................................................................. 14
13.1 Electrical connections ......................................................................................................... 14
13.1.1 Electronic controller LA-1.1 ....................................................................................... 14
13.1.2 Electronic controller LA-1.4 ....................................................................................... 16
13.2 Pneumatical connections ................................................................................................... 17
14 Starting ....................................................................................................................................... 17
14.1 Starting with a dry sensor ................................................................................................... 17
14.2 Function test ....................................................................................................................... 18
14.3 Adjustment of sensitivity ..................................................................................................... 18
14.4 Adjustment of alarm holding function ................................................................................. 19
15 Closing down ............................................................................................................................. 19
16 Maintenance and repair ............................................................................................................ 20
17 Spare parts list ........................................................................................................................... 21
18 Appendix .................................................................................................................................... 21
List of illustrations
Figure 1 Flow chamber LS with liquid sensor LA 1S .................................................................... 10
Figure 2 Flow chamber LS 25 with liquid sensor LA 25S ............................................................. 10
Figure 3 Liquid alarm sensor LA 1S and LA 25S with universal filter F..-..D and FSS-..-D .......... 11
Figure 4 Mounting of the sensor LA 1S into flow chamber LS ...................................................... 13
Figure 5 Electrical connection and dimensions LA-1.1 ................................................................. 15
Figure 6 Electrical connection and dimensions LA-1.4 ................................................................. 16
Figure 7 Insertion plan of the LA-1.4 ............................................................................................ 17
Figure 8 Flow diagram LA1.1, 115/230V 50/60Hz ........................................................................ 22
Figure 9 Flow diagram LA1.1, 24V AC/DC ................................................................................... 23
Figure 10 Flow diagram LA1.4, 115/230V 50/60Hz ........................................................................ 24
Figure 11 Flow diagram LA1.4, 24V AC/DC ................................................................................... 25
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Head Office
M&C TechGroup Germany GmbH Rehhecke 79 40885 Ratingen Germany
Telephone: 02102 / 935 - 0
Fax: 02102 / 935 - 111
E - mail: info@mc-techgroup.com
www.mc-techgroup.com
1 GENERAL INFORMATION
The product described in this operating manual has been examined before delivery and left our works
in perfect condition related to safety regulations. In order to keep this condition and to guarantee a
safe operation, it is important to heed the notes and prescriptions made in this operating manual.
Furthermore, attention must be paid to appropriate transportation, correct storage, as well as
professional installation and maintenance work.
All necessary information a skilled staff will need for appropriate use of this product are given in this
operating manual.
2 DECLARATION OF CONFORMITY
CE - Certification
The product described in this operating manual complies with the following EC directives:
EMV-Instruction
The requirements of the EC directive 2004/108/EC “Electromagnetic compatibility“ are met.
Low Voltage Directive
The requirement of the EC directive 2006/95/EC “Low Voltage Directive“ are met.
The compliance with this EC directive has been examined according to DIN EN 61010.
Declaration of conformity
The EU Declaration of conformity can be downloaded from the M&C homepage or directly requested
from M&C.
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3 SAFETY INSTRUCTIONS
Please take care of the following basic safety procedures when mounting, starting up or
operating this equipment:
Read this operating manual before starting up and use of the equipment. The information and
warnings given in this operating manual must be heeded.
Any work on electrical equipment is only to be carried out by trained specialists as per the regulations
currently in force.
Attention must be paid to the requirements of VDE 0100 (IEC 364) when setting high-power electrical
units with nominal voltages of up to 1000 V, together with the associated standards and stipulations.
Check the details on the type plate to ensure that the equipment is connected to the correct mains
voltage.
Protection against touching dangerously high electrical voltages:
Before opening the equipment, it must be switched off and hold no voltages. This also applies to any
external control circuits that are connected.
The device is only to be used within the permitted range of temperatures and pressures.
Check that the location is weather-protected. It should not be subject to either direct rain or moisture.
The electronic controllers LA-1.1 and LA-1.4 as well as the liquid sensors LA 1S and LA 25S in
combination with this electronic controllers must not be used in hazardous areas.
Installation, maintenance, monitoring and any repairs may only be done by authorized personnel with
respect to the relevant stipulations.
4 WARRANTY
If the equipment fails, please contact M&C directly or else go via your appointed M&C dealer.
We offer a one year warranty as of the day of delivery as per our normal terms and conditions of sale
and assuming technically correct operation of the device. Consumables are hereby excluded. The
terms of the warranty cover repair at the factory at no cost or the replacement at no cost of the
equipment free ex user location. Reshipments must be sent in a sufficient and proper protective
packaging.
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DANGER!
This means that death, severe physical injuries and/or important
material damages will occur in case the respective safety measures
are not fulfilled.
WA R N ING !
This means that death, severe physical injuries and/or important
material damages may occur in case the respective safety
measures are not fulfilled.
CARE!
This means that minor physical injuries may occur in case the
respective safety measures are not fulfilled.
CA R E !
Without the warning triangle means that a material damage may
occur in case the respective safety measures are not met.
AT T E NT I O N!
This means that an unintentional situation or an unintentional status
may occur in case the respective note is not respected.
NOTE!
These are important information about the product or parts of the
operating manual which require user’s attention.
SKILLED STAFF
These are persons with necessary qualification who are familiar with
installation, use and maintenance of the product.
5 USED TERMS AND SIGNAL INDICATIONS
6 INTRODUCTION
The M&C liquid alarm units series LA® are designed for a continuous and stationary operation and
guarantee a long service life and a minimum maintenance work provided a perfect installation.
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Sensor Series LA
®
LA 1S
LA 25S
Flow chamber
LS LS 25
Part Number
03 E 1001
03 E 3100
03 E 1111
03 E 1120
Connection cable
2 m 2 m
ø 4,2 mm, 2-core
each additional meter of connection cable = part No. 03E 9001, total max. 100 meters
Pressure
0 - 4 bar g****
0 - 25 bar g (up to 100 bar g*)
Flow
0 - 1000 l/h
Operating temperature
+80 °C ***
Gas connections
ø 12 mm
G 1/4" i
1/4" NPT a
ø 8 mm **
Stagnant space approx.
3 ml 3 ml
Material of sample
contacting parts ***
glass, platinum
PVDF,
FPM
SS316Ti,
PVDF
SS316Ti
Type of mounting
clamping attachment
wall
screw on
pipe
Mounting position
vertical
Electrical conductivity
>50 µS/cm
Weight
50 g
60 g
140 g
100 g
Electronic Controller Series LA® Type
LA-1.1
LA-1.4
Part Number
230V 50/60Hz
115V 50/60Hz
24V DC
24V AC
03 E 2001*
03 E 2001*
03 E 2001* d
03 E 2001* b
03 E 2006
03 E 2006 a
03 E 2006 d
03 E 2006 d
Mounting
Wall mounting housing Rail mounting housing EN 50022
Sensor inlets
1
Power consumption
2 VA
1VA
Alarm-relay (2x MC/NC/NO)
contact rating
250V DC/AC
DC=50W, AC=500VA, 3A
250V DC/AC
DC=45W, AC=500VA, 2A
Cable inlet
1x terminal range 3mm - 6,5mm
2x terminal range 5mm - 10mm
Electrical connection
Terminals max. 2,5 mm
2
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
7
7 APPLICATION
Liquid alarm sensors LA 1S and LA 25S 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.
The electronic controllers LA-1.1 and LA-1.4 are used for feeding and signal processing of the liquid
alarm sensors LA 1S and LA 25S.
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.
8 TECHNICAL DATA
* other pressure ranges -, ** other dimensions -, *** other materials or temperatures on request
**** max. 2 bar when mounted in universal filter
A Electronic controllers type LA-1.1 LA-1.4
Reversible distribution voltage 230V 50Hz / 115V 60Hz, at works adjusted to 230V 50Hz.
** at works deactivated
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NOTE!
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.
AT T E NT I O N!
The special electronic controller ER142 Exi (without line break controller)
(Part No.: 03E2009 (a)) must only be used for the intrinsically safe feeding
of the old sensor versions LA 1 or LA 25 being installed in the EX-zone.
For application in combination with the new sensor versions LA 1S and
LA 25S no explosion protection is provided!
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.
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. 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.
Two mounting types are available, wall-mounting LA1.1 and rail-mounting LA1.4.
A line break supervision is integrated for sure operation. There are two LED’s for displaying
operational and fault status as well as two potential-free 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 deactivated. 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 for a conductivity of 100µS/cm.
10 RECEIPT OF GOODS AND STORAGE
The liquid alarm series LA® are normally delivered in 2 packing units:
1. Universal filter F.-..-D or flow chamber LS and liquid sensor LA ..S
2. Electronic controller LA-1...
Please take the liquid alarm units LA... and eventual special accessories carefully out of the
packaging material immediately after arrival, and compare the goods with the items listed on the
packing list.
Check the goods for any damage caused during delivery and, if necessary, notify your transport
insurance company without delay of any damage discovered.
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