Technical Data
Lambda Transmitter LT2-Ex
Lambda Probe LS2-Ex
Non-explosive atmosphere
Explosive atmosphere
Lambda
Transmitter
LT2-Ex
Lambda Probe
LS2-Ex
O2
Probe Connection
Unit PCU
O2
(Operation,
Service)
Optional:
CANopen
Modbus
Profibus DP
Ethernet
LSB
Fieldbus
RS 232
Probe connection
Analog inputs
Analog outputs
Digital inputs
Digital outputs
LAMTEC SYSTEM BUS
to further
LAMTEC devices
FMS / VMS / ETAMATIC
LT 1 / LT 2
Sensors und Systems for
Combustion Engineering
Digital inputs
Digital outputs
Analog inputs
Analog outputs
Optional LSB-modules
System overview
In conjunction with the LS2-Ex lambda probe, the LT2-Ex lambda transmitter is an O2
measuring system for continuously measuring the concentration of O2 in noncombustible gases in the leaner than stoichiometric range.
The LS2-Ex combination probe is encased in a flameproof enclosure and can be
employed in explosive atmosphere 1 and 2 in accordance with their specifications.
EX area 1
II (2) G
for the temperature monitoring
II 2 G EEx d 11B + H2T3 (160°C) for the probe
EX area 2
EEx d 11B + H2T3 (160°C)
for the probe
If the measurement system is to be used in a different way and the function of the
device cannot be deemed correct for this application, the manufacturer should be
consulted beforehand.
There is the possibility of a direct coupling with the compound/firing management
system and the Etamatic. This actually makes the realization of improved rule
procedures for the optimization of oil and gas firings and for the automatic adjustment
for the firing possible changing burn conditions.
Additionally to the O2 measurement the LT2-Ex offers the still following functions:
•
•
•
•
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Advantages:
Measurement of flue gas and intake air temperature, and calculation of the
efficiency of combustion
Calculation and display of the concentration of CO2, calculated for the specific fuel
on the basis of the measured O2 value and the max. CO2 value
Load-dependent and fuel-specific limit values/limit curves
Integrated PID-O2 controller
(Outputs 1 and 2) max. potential difference 20 V configurable as desired
Direct current 0/4...20 mA, burden 0...600W
•
•
Digital outputs in conjunction with relay module
Field bus connection
•
•
•
•
•
No gas conditioning required, measurement directly in the damp flue gas
Adjustment time at a value of 90% (T90) < 20 seconds
Measuring gas temperature up to 450°C
Low heat output 15...25 watts
According to the age and condition of the zircon dioxide measurement cell in each
case
Suitable for universal use
Easy to use
Low-maintenance
•
•
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System components
Necessary
components
The measuring system consists of the following components:
•
Explosion-proof measuring lambda probe LS2-Ex combination probe for a max.
permitted exhaust gas temperature of 450°C based on:
EX area 1
II (2) G
for the temperature monitoring
II 2 G EEx d 11B + H2T3 (160°C) for the probe
EX area 2
EEx d 11B + H2T3 (160°C)
for the probe
based on an environment temperature of 60°C !
•
Probe connection unit (PCU) in Ex-e version in vicinity of the probe to EC Type Approval
Certificate according to PTB 00 ATEX 1002
- for connecting the probe to LT2-Ex.
- for connecting the reference air and calibration gas.
- for setting the air quantities.
- NAMUR limit value transducer for monitoring the flow rate of
reference air in the EEx-ia IIC version to DMT99 ATEX E 104 X
System components
•
LT2-Ex lambda transmitter in IP 65 wall-mounted housing
for installing outside the explosive atmosphere
or
• in panel mounting case
for installing outside the explosive atmosphere
System components
or
• on mounting plate for installing in the control cabinet
for installing outside the explosive atmosphere
•
or in EEx d-case
for build-in the LT2-Ex on mounting plate
for installing inside the explosive atmosphere
- flameproof encapsulation
- Zone 1 and zone 2
Gas groups IIA and IIB
Temperature class T4, T5 or T6
- Ex II2G EEx d IIB T4, T5, or T6
Certificate: CESI 02 ATEX097
- Protection code IP65
Theoretical basis of the principle of measurement
In essence, the LS2-Ex Lambda probe consists of a zirconium dioxideceramic
electrochemical cell. The cells operates as an electrochemical concentration chain,
and generated direct voltage that depends on the absolute temperature T and the
logarithm of the O2 concentration or the O2 partial pressure ratio at the inner and outer
electrodes. If the outer electrode is supplied with the test gas and the inner one with a
reference gas with a known O2 concentration, such as e.g. air (20.96%), then
assuming the temperature is held constant, we obtain the logarithmic relationship
between probe voltage E and the oxygen concentration of the test gas shown below.
The characteristic curves for two different temperatures T1 and T2 show clearly that
when using the voltage probe, the temperature affects the measured value in the cell's
active part. In addition, the curves show that the probe is preferentially suitable for
measuring low oxygen concentrations, since sensitivity and accuracy increase with
decreasing O2 concentration because of the logarithmic relationship. Since the
measurement of high O2 concentrations is subject to high error due to the low voltage
dependence, it is not possible to use, for example, air (20.96% O2 ) to calibrate or tune
the probe. Each LS2 Lambda probe is tested at the factory under real-life conditions,
in a gas-combustion system with an exhaust temperature of ca. 150°C. The test
protocol is enclosed with each probe. The sensor temperature recorded in the protocol
should be input into the LT2 during commissioning. Calibration with test gases is not
required.
During operation it is possible to check and compensate for the measured values
through countermeasurement.
Theoretical basis of the principle of measurement
The curve shown below demonstrates that oxygen measurements require knowledge
of the proportionality factor and of the probe's temperature. In practice this means that
the probe's tuning is possible simply through air voltage compensation (offset
compensation), and entering the cell temperature obtained during final testing in
accordance with the test protocol enclosed with the probe (usually ca. 1000 K) during
commissioning with the LT2-Ex. The probe's logarithmic characteristic depends on cell
temperature and on each probe's individual curve. The temperature of the solid
electrolyte and of the electrodes affects the probe's signal, however the probe is
heated with constant current to ca. 730°C. The temperature of the measured gas and
the installation site affect the cell's temperature only slightly. Hence, probe
temperature needs to be neither measured nor regulated. Individual deviations are
compensated for during commissioning by adjusting the air voltage (offset
compensation) and entering the sensor temperature obtained during final testing and
recorded in the test protocol. The probe can only be used up to a gas temperature of
450°C. Probe ageing in long-term operation leads to a stretching of the characteristic
curve. However, this can be recognised from the fact that the internal resistance
increases. The probe should be replaced every 2 heating periods, however no later
than after 10.,000 hours in operation.
CAUTION!
The test gas used for adjustment must be free from oxidizable constituents such as
CO; NO; etc. Oxidizable constituents will oxidize at the platinum electrode (heated to
730°C) and corrupt the adjustment. It is recommended to use test gas with 2...5%
by volume O2 in N2.
Options Lambda Transmitter LT2-Ex
•
Remote-Display-Software
•
Measurement of flue gas and intake air temperature, and calculation of the
efficiency of combustion
•
Calculation and display of the concentration of CO2, calculated for the specific fuel
on the basis of the measured O2 value and the max. CO2 value
•
Load-dependent and fuel-specific limit values/limit curves
Limit curves (factory setting) parameterised to undershoot, or alternatively
two fuels with four limit curves each/two limit values per fuel
•
Integrated PID-O2 controller
•
1...4 Analog outputs 0/4...20mA, 0...10V
Can be retrofitted at any time by means of plug-in cards on the LT2-Ex processor
board (max. 4)
(Outputs 1 and 2) max. potential difference 20 V configurable as desired
Direct current 0/4...20 mA, burden 0...600W
Direct voltage 0...10 V, burden ≥ 10 kΩ
•
Output of the internal load via an. output 2 (only in con. with ETAMATIC / FMS
/VMS)
•
Digital outputs in conjunction with relay module 657R0857
•
via internal relay module (6 relays – 1 change-over contact)
Switching capacity 230 V AC / 2 A, 48V DC / 3A
•
1...4 Analog inputs can be retrofitted at any time by means of plug-in cards, eg. for
temperature input, pressure sensors, etc.
•
Fieldbus connection for
Profibus DP
Ethernet
Modbus
Technical Data for Lambda Transmitter LT2-Ex
Design:
Housing:
Wall-mounted housing
Type
657R102 / LS2 / Ex1 / a1
657R102 / LS2 / Ex2 / a1
Panel-mounted housing
Type
657R104 / LS2 / Ex1 / a1
657R104 / LS2 / Ex2 / a1
Sheet steel
3 HE/50 TE
Panel-mounted housing
Type of protection in
IP 65
accordance with DIN 40050
IP 00
IP 20
Dimensions (h x w x d) mm 400 x 300 x 150
350 x 258 x 131.5
173 x 310 x 270
Colour
Grey RAL 7035
-----
Silver metallic (anodized
aluminium)
Operating elements grey
Weight
approximately 11 kg
approximately 6,3 kg
Approximately 5 kg
Ambient temperature:
Operation
Transportation and storage
Surface-mounted housing
made of sheet steel,
powder-coated
Mounting plate
Type
657R103 / LS2 / Ex1 / a1
657R103 / LS2 / Ex2 / a1
- 20 °C...+ 60 °C
- 40 °C…+ 85 °C
Auxiliary power supply:
230 VAC and 115 VAC
+ 10%/- 15%, 48 Hz...62 Hz
Power consumption:
Typically 50 VA for short periods 150 VA (heating-up phase for probe)
Display:
LCD graphic display 100 x 80 mm (w x h)
Resolution:
0.1% by volume O2 in the range 0...18% by volume O2
1% by volume O2 in the range 18...30% by volume O2
Accuracy of measurement:
(with LS 2Ex/LS 2ExKV
lambda probe)
± 5% of the measured value
not better than ± 0.2% by volume O2
Adjustment time (90% time):
T 90 < 20 s
Time until ready for
operation with LS 2Ex
approximately 10 minutes after “POWER ON“
Technical Data for Lambda Transmitter LT2-Ex
Analogue outputs:
Monitor output
0...2.55 VDC, output load > 10 kΩ, ≤ 100 nF
Accuracy
2% of the measured value, not better than 0.2% by volume O2
Resolution
10 mV
Factory settings
0...2.55 VDC ≈ 0...25.5% by volume O2
DIP switches can be used to switch to :
probe voltage U-O2
0...255 mVDC ≡ 0...2.55 V
Internal cell resistor Ri
0…255 Ω ≡ 0...2.55 V
1...4 current/voltage outputs
1 standard, 2...4 optional
Direct current 0/4...20 mA
Output load
0...600 Ω
Direct voltage 0...10 V
Output load
≥ 10 kΩ
not floating (isolation optional)
Accuracy:
Measurement ranges and physical quantity can be configured
0.5% of the measured value, not better than 0.1% by volume O2
Resolution:
0.1% by volume O2
Factory setting:
0...10% by volume O2 ≡ 4...20 mA
Analogue inputs:
optional
via plug-in cards on LT 2Ex power supply unit electronics
Analogue input card 0...+2900mV (from January 2007)
Type 6 57 P 0661
Analogue input card LT 2Ex Potentiometer 1...5 kΩ
Type 6 57 P 6000
Analogue input card 0/4...20 mA
Type 6 63 P 6001
Analogue input card 0/4...20 mA with 24 VDC supply for sensor
Type 6 57 P 6002
Temperature input for Pt 100 sensor
Type 6 57 R 0890
Operating elements:
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•
•
•
Multi-function switch
, maintenance switch
2 rows of LEDs,
display and operating unit
Interface:
LAMTEC SYSTEM BUS
RS 232 only in conjunction with interface module 6 63 P 0600
Technical Data for Lambda Transmitter LT2-Ex
BUS connection:
Optional for the systems
Profibus DP (Siemens)
Ethernet
Modbus
Digital outputs:
1 standard + 6 optional
1 relay output
0...230 VAC, 4 A
Group fault display
0... 42 VDC, 3 A
Optional:
Relay module with 6 relays (1 change-over contact)
Switching capacity
0...230 VAC, 4 A
0... 48 VDC, 3 A
Type 657 R 0857
freely configurable for operating, status and limit value messages
Digital inputs:
8 inputs – freely configurable
Factory settings: 24 VDC referring to equipment potential
can be switched to floating via plug-in jumper for external voltage sources
Cold start delay:
Automatic cold start delay
10 mins
Conformity with the following
European directives:
2004 / 108 / EC
2006 / 95 / EC
Electromagnetic compatibility
Electrical equipment within specific
voltage limits
Technical Data for Lambda Probe LS2-Ex
Surface mounting
Zircon sensor installed in the top of the probe with fitted stainless steel
sintered metal filter performed as flame arrester
Measurement range
0...10% by volume O2, with restriction 0...21% by volume O2
Accuracy of measurement
± 5% of the measured value, not better than ± 0.2% by volume
Drift/month
max. 2% of the measured value, or 0.1% by volume O2
Pressure influence of the
measuring gas
- 1.6 mV/100 mbar change
Permissible fuels
Gaseous hydrocarbons
Natural gas L/H
Fuel oil EL/S
Coal
Special fuels on request
Permissible duration of exhaust
gas temperature
≤ 500°C
Dust concentration of fluegas
Up to max. 5 gram/Nm3,
furthermore baffle plate or separate protection pipe
Speed of fluegas
Up to max. 20 m/sec. or separate protection pipe
Mounting position
Down-grade downwards
Supply of reference air
via separate probe connection unit
Supply of calibration gas
via separate probe connection unit
Service life
≥ 2 years, for fuel oil EL and natural gas
Probe output voltage 0.01 to 12%
by volume O2
150 ... 0 mV
Probe internal resistance RI in air
20 °C and 13 V heating voltage
≤ 150 Ω
Probe voltage in air 20 °C in new
state and 13 V heating voltage
- 5...- 15 mV
Supply voltage measurement cell
heating
11...16 VDC; polarity changes cyclically
Heat output at 13 V in steady state
condition
approximately 16 watts
Heating current at 13 V in steady
state condition
approximately 1.3 A
Insulation resistance between
heating and probe connection
> 30 MΩ
Suitable for
EX area 1
II (2) G
for the temperature monitoring
II 2 G EEx d 11B + H2T3 (160°C) for the probe
EX area 2
EEx d 11B + H2T3 (160°C)for the probe
Class of protection
IP65
Sampling
direct in wastegas flue (InSitu)
Material
Probe /-parts
flange
Sinterfritte
Test pressure of the sintered frite
26 bar (g)
: 1.4571
: 1.4541
: 1.4404 CrNi-Steel
Wiring Diagram for Lambda Transmitter LT2-Ex / LS2-Ex
Lambda Transmitter LT 2 - EX
LAMTEC SYSTEM BUS
floating
(+)
* Module 4 (-)
Analogue outputs
0/4...20 mA
0/2...10 V
(option)
(+)
* Module 3 (-)
(+)
* Module 2 (-)
* on processor
printed circuit
board
(+)
* Module 1 (-)
Monitor output
0...2.55 V DC
Switch-over between
O2 , U-O2, Ri
Analogue
measurement inputs
standard signals
0/4...20 mA
0...10 V
temperature,
pressure
(+)
(-)
75
74
73
72
71
CAN Low
CAN high
not con.
not con.
CAN GND
49
48
not be placed
47
46
not be placed
45
44
not be placed
43
42
0...10 Vol.% O2 --> 4...20mA
32
31
For example, for connection of a multimeter
for service purposes Ri > 10 k Ω
Measure
ment
card 4
26
25
24
23
not be placed
Measure
ment
card 3
22
21
20
19
not be placed
Relay output 1
0... 42 V DC, 3 A
0...230 V AC, 2 A
F1
T1A / 250 V [230 V]
T2A / 250 V [1 15 V]
3
2
1
For example, combined fault indication
(configurable as required)
Manufacturer's setting: quiescent
current principle
PE
= Earth
N
L
= Neutral conductor
= Phase 230 / 115 V, 48...62 Hz
Line power consumption typically 50 VA
Short-term (probe heating phase) ca. 150 VA
To be used only in grounded power line networks !
Wiring Diagram for Lambda Transmitter LT2-Ex / LS2-Ex
Lambda-Transmitter LT2 Ex1
with temperature monitoring
Digital inputs
24V, ca. 6mA
Jumper JP106 and JP107 on
LT2-mainboard
Pos. 1-2 (default)
non floating for int. voltage source
Pos. 2-3
floating for ext. voltage source
+24 V
Input 8
Input 7
Input 6
Input 5
Input 4
Input 3
Input 2
Input 1
GND
+24V
69
68
67
66
65
64
63
62
61
60
PCU
Probe connection
LS2-Ex
from isolated switch ampl.
2m
LS2-EX1
(-)
33
33 Probe signal - O2
blue
1
Probe signal - O2
(+)
34
34 Probe signal + O2
black
2
Probe signal + O2
Heater
35
35 Probe heater
brown
3
Probe heater
Heater
36
36 Probe heater
white
6
Probe heater
7 PT100
red
7
PT100
10 PT100
pink
10 PT100
Ref.Air Cal.Gas
Teflon hose
Temperature
monitoring
build-in in LT 2Ex
Relay
output
Supply
DC 24V internal
X2
4
3
21+
X1
4
3
Analogue output 20...2,5V -> 0...495°C 1+
Flowmeter
Cal.gas
40...60l/h
internal wired
to probe heater
internal wired
to term.60/61
PT100
input
Isolated switch
ampifier
NAMUR
input
Relay
output
1+
37
9
Supply
AC230V internal
14
15
build-in in LT 2Ex
hose
connectors
4/6mm
internal wired
to term.16/17
Analogue imput 2
+
-
Flowmeter
Reference
air
50...60l/h
with
NAMUR
internal wired to digital input 4 (term.65)
Pressure air or testgas
as calibration gas
pre pressure 1bar
Pressure air
as reference ait
pre pressure 1bar
Wiring Diagram for Lambda Transmitter LT2-Ex / LS2-Ex
Lambda-Transmitter LT2 Ex2
without temperature monitoring
Digital inputs
24V, ca. 6mA
Jumper JP106 and JP107 on
LT2-mainboard
Pos. 1-2 (default)
non floating for int. voltage source
Pos. 2-3
floating for ext. voltage source
+24 V
Input 8
Input 7
Input 6
Input 5
Input 4
Input 3
Input 2
Input 1
GND
+24V
69
68
67
66
65
64
63
62
61
60
PCU
Probe connection
LS2-Ex
(-)
33
33 Probe signal - O2
(+)
34
34 Probe signal + O2
Heater
35
35 Probe heater
Heater
36
36 Probe heater
from isolated switch ampl.
2m
LS2-EX2
1
Probe signal + O2
2
Probe signal - O2
brown
3
Probe heater
white
6
Probe heater
blu
bla
Ref.Air Cal.Gas
Teflon hose
Flowmeter
Cal.gas
40...60l/h
+
-
Isolated switch
ampifier
NAMUR
input
Relay
output
1+
37
9
Supply
AC230V internal
14
15
build-in in LT 2Ex
Flowmeter
Reference
air
50...60l/h
with
NAMUR
internal wired to digital input 4 (term.65)
hose
connectors
4/6mm
Pressure air or testgas
as calibration gas
pre pressure 1bar
Pressure air
as reference ait
pre pressure 1bar
Wiring Diagram for Lambda Transmitter LT2-Ex / LS2-Ex
Lambda Transmitter LT 2Ex
Relay module 657 R 0857
terminal strip X2
18
16
17
Relay
output 7
15
13
14
Relay
output 6
d5
12
10
11
Relay
output 5
d4
9
7
8
Relay
output 4
d3
6
4
5
Relay
output 3
d2
3
1
2
Relay
output 2
d7
Relay outputs
2-7
Max.
230VAC/4A
48VDC/3A
d6
Interface modules
RS232
RS422
25pin connector for
interface module
only in connection with
Remote Display Software
- 657 R 1101
- 663 P 0500
Dimensions
Lambda Probe LS2-Ex
8x M16x50
geriffelte Seite
Counter flange
glatte Seite
Dimensions LT2 in Wall Mounting Housing
Dimensions LT2 on Mounting Plate
Dimensions LT2 in Panel Mounting Housing
Dimensions PCU on Mounting Plate
Dimensions Eex d Housing
ƒ
Nominal voltage: AC 690 V
ƒ
Protection code: IP65
•
Basic material: Aluminium
aloy, low copper contents
•
Cable glands: 6x EEx d M20
M8 x 17mm
235mm
360mm
•
Dimensions ootside: W380
x H560 x D245mm
•
Dimensions inside: W305 x
H490 x D160mm
•
Weight: 27kg
Item Numbers
657 R 102 / LS2 / Ex1 / a1
LT2 in wall mounting housing with temperature monitoring
for connecting of the lambda probe LS2-Ex1,
incl. display and operation unit
657 R 102 / LS2 / Ex2 / a1
LT2 in wall mounting housing without temperature monitoring
for connecting of the lambda probe LS2-Ex2,
incl. display and operation unit
657 R 103 / LS2 / Ex1 / a1
LT2 on a mounting plate with temperature monitoring
for connecting of the lambda probe LS2-Ex1,
incl. display and operation unit
657 R 103 / LS2 / Ex2 / a1
LT2 on a mounting plate without temperature monitoring
for connecting of the lambda probe LS2-Ex2,
incl. display and operation unit
657 R 104 / LS2 / Ex1
LT2 in panel mounting housing with temperature monitoring
for connecting of the lambda probe LS2-Ex1,
incl. display and operation unit
657 R 104 / LS2 / Ex2
LT2 in panel mounting housing without temperature monitoring
for connecting of the lambda probe LS2-Ex2,
incl. display and operation unit
657 R 0165
Eex d housing for Ex-area 1 and 2
for using of the LT2 on a mounting plate inside of the EX-area
650 R 4000
Lambda probe
LS2-Ex1 with calibration gas connector, for semi-automatically calibration and PT100measurment element
Installation depth: 500mm
650 R 4005
Lambda probe
LS2-Ex1 with calibration gas connector, for semi-automatically calibration and PT100measurment element
Installation depth: 860mm
650 R 4010
Lambda probe
LS2-Ex2 with calibration gas connector, for semi-automatically calibration
Installation depth: 500mm
650 R 4015
Lambda probe
LS2-Ex2 with calibration gas connector, for semi-automatically calibration
Installation depth: 860mm
650 P 4025
Probe connection unit on a mounting plate,
for connecting of the lambda probe LS2-Ex2
650 P 4026
Probe connection unit on a mounting plate,
for connecting of the lambda probe LS2-Ex1
657 R 1070
Wall mounting housing IP65, for probe connection units on a mounting plate
650 R 4050
Counter flange DN80 PN40
650 R 4052
Seal for counter flange
Item Numbers
657 R 1101
Remote-Display-Software invl. Interface module RS 232 for PC
657 R 1102
Further licences for Remote-Display-Software
663 R 9002
Interface module RS 422 / 485 instead of RS232
657 R 0890
Analog input
Measurement card for temperature input PT-100
e.g. for measuring the flue gas temperature
657 R 0891
Temperature sensor PT 100, length 250 mm
657 R 6000
Analog input
Measurement card for Potentiometer 1...5 kΩ
657 R 6001
Analog input
Measurement card for 0/4...20 mA
663 R 6002
Analog input
Measurement card for 0/4...20 mA with supply voltage 24 V DC for transducer
663 R 6005
Analog input
Measurement card for 0/2...10 V
657 R 0050
Analog output
Plug-in card for 0/4...20 mA, 0...10 V
657 R 0051
Analog output
Plug-in card for 0/4...20 mA, 0...10 V, floating, max. floating difference ± 20 V (only
output 1 and 2)
657 R 0857
Digital outputs
Relay module with 6 relays
657 R 0920
Load-dependent and fuel-specific limit values/limit curves
657 R 0910
Calculation and display of the concentration of CO2
Item Numbers
657 R 0895
Measurement of flue gas and intake air temperature, and calculation of the efficiency of
combustion
657 R 1120
Integrated PID-O2 controller
657 R 1124
Output of the internal load via analog output 2 (only in conjunction with
ETAMATIC/FMS/VMS)
663 R 040 / 1 / LT
Field Bus connection in variant Profibus DP for LT
663 R 040 / 3 / LT
Field Bus connection in variant Modbus for LT
663 R 040 / 6 / LT
Field Bus connection in variant Ethernet for LT
LAMTEC Meß- und Regeltechnik
für Feuerungen GmbH & Co KG
LAMTEC Leipzig GmbH & Co KG
Wiesenstraße 6
D-69190 Walldorf
Telefon (+49) 06227 / 6052-0
Telefax (+49) 06227 / 6052-57
Internet: www.lamtec.de
e-mail: info@lamtec.de
Schlesierstraße 55
D-04299 Leipzig
Telefon (+49) 0341 / 863294-00
Telefax (+49) 0341 / 863294-10
Überreicht durch:
Druckschrift-Nr.: D LT 3005-11-aE - 0031
Printed in Germany