Technical Data CarboSen Sensors and Systems for

Technical Data CarboSen Sensors and Systems for
Technical Data
Sensors and Systems
for Combustion Engineering
CarboSen
1
1
Brief Description
Brief Description
The CarboSen is a sensor system for the detection of flammable gases such as CO, H2 or
CxHy. In this manual, these gases are also referred to as CO equivalent (COe).
The sensor system consists of the sensor and the sensor electronics. The unit, comprising the
sensor element, sensor housing and sensor signal cable, forms the sensor, which is used to
detect the measured variable. The sensor electronics enable temperature compensation during operation, flexible control of the sensor and the acquisition of all sensor signals.
The CarboSen 1000 is a high-resolution measuring system for the detection of small COe concentrations in the range of 0 - 3000 ppm (ideally up to 1000 ppm). In the ST version, the electronics are integrated in the head of the sensor.
The CarboSen functions on the principle of solid-state electrolysis. The technology used for
this method is well known and widely used in the form of the lambda sensor. However, unlike
the lambda sensor, which measures oxygen on the basis of the Nernst principle, the CarboSen functions according to the Non-Nernst principle. By varying the geometry, material and
electrical wiring, sensors working according to the Non-Nernst principle can also detect other
gases such as CO, H2, and HC.
To operate the sensor, it first has to be heated to operating temperature. This is achieved by
means of a heating structure, which is affixed to the back of the sensor element. The resistance of the platinum heating spiral has a defined temperature dependence. This enables the
operating temperature of the sensor to be set. This temperature is 630°C and is set automatically by the electronics and kept constant during operation. To this aim, the electronics automatically determine a cold resistance of 20°C when the sensor system is commissioned.
The sensor temperature can be varied for special applications. For this purpose, the relevant
parameters have to be reprogrammed. Upon customers’ request, this can be carried out either
at LAMTEC or on site (with the appropriate programming unit). If the operating temperature is
changed, so is the sensor characteristic. Increasing the temperature of the sensor results in
reduced sensitivity, i.e. the sensor is less sensitive to COe and the curve is flatter. The sensor
dynamics become faster, i.e. the response and decay times are accelerated.
Fig. 1-1 Principle of the Non-Nernst sensor
2
2
System Components
2
System Components
2.1
Sensor Types and Versions
Fig. 2-1 CarboSen1.000 ST with electronics in adapter housing
Fig. 2-2 CarboSen1.000 in clip housing
2.2
Fig. 2-3 CarboSen1.000 in rod housing
Sensor Electronics XC 164
The microprocessor-controlled sensor electronics perform the following functions in the system:
•
Heating the sensor and regulating the heater spiral to a constant heating resistance
•
Acquisition of the sensor voltages in mV
•
Conversion of measured sensor voltages and output to the analogue output (0/4-20mA)
•
Monitoring of both sensor voltages
•
Checking the analogue outputs
•
Output of measured values on USB CAN bus.
The electronics have a power supply of 13V to 30V DC. 
Ideally with 24V / 1.5A.
3
2
System Components
The standard configuration COe is calculated from the sensor voltage and would be given in
the analogue output. Internally, both sensor signals are compared and checked on the basis
of the following failure criteria (standard parameterisation):
•
Difference greater than 25mV, or
•
Difference greater than 25% from the current measured value.
Fig. 2-4 Electronics with adapter housing
Fig. 2-5 Electronics for top hat rail mounting
Terminal assignment of the sensor electronic XC164 for top rail mounting
No.
Description
1
2
Pin Assignment
PE
power supply
0V
3
24V DC
4
shield
5
analogue output 1
6
7
8
minus
plus
analogue output 2
(only with 2-board design)
schield
minus
9
plus
10
shielding
11
LAMTEC SYSTEM BUS
CAN-High
12
CAN-Low
13
CAN-GND
4
3
Technical Data
3
Technical Data
Electronics:
Sensor:
Dimensions:
Measurement principle:
Solid state electrolysis 
(Non Nernst)
Type ST
111x111x87 mm
Type XC164
112x112x85 mm
Measurement range:
up to 3.000ppm CO/H2
Supply voltage:
13-30V
Power consumption
Electronics and probe:
Max. 8W
(without additional devices)
(Sensor, up to 6W)
Cross-sensitivity:

H2 O
Temperature
Volume flow rate
<1s
Analogue output:
0/4 - 20mA, 0mA = error
Burden 300 Ohm
Response time t 
(sensor element):
Scaling of the
analogue output:
-100mV up to +900mV
Temperature 
Field:
Type NT and

Clip Housing: up to 150°C 
Type HT:
150°-400°C
Sensor temperature:
630°C
Sensor cold resistance:
7,0  R20°C 11
Resistance ratio
Rheiß/ R20°C:

2,5

35 Ohm (on the assumption
of cable break)
ST Housing
Material:
Die-casting aluminium
Temperature:
-40°C... +100°C
Maximum 
heating resistance:
Average life cycle:
Blue flame burner, 
Fuel: oil / gas:

approx. 3 years
Wood combustion, 
Fuel: neat stock wood 
or pellets:

approx. 2 years

Fuel for other wood combustion, according to contamination concentration
(e.g. wood chips, bark):

< 1 year
Degree of protection according to EN 60529: IP 67
LED Coding of the electronics
Colour
Appearance
Description
Green
Flash frequency 1Hz
Nominal operation
Flash frequency 0,25Hz
Sensor are not connected or faulty
Flash frequency 4Hz
Determining the heating resistance
Yellow
Lit continuously
Sensor is heating up
Red
Flashing
Indicates a problem
5
none
very low
very low
3
Technical Data
* with an opened cover plate of 190 mm
Plug A1
Plug A2
Art.No.
L/mm
658 R 0010
150
658 R 0012
250
658 R 0030
150
Round plug connector, 4-pin
•
Pin 1
Power supply voltage 0V
•
Pin 2
Power supply voltage 24VDC
•
Pin 3
Analogue output –
•
Pin 4
Analogue output +
Round plug connector, 5-pin
•
Pin 1
24VDC-output +
•
Pin 2
24VDC-output -
•
Pin 3
CAN-GND (LSB)
•
Pin 4
CAN-L (LSB)
•
Pin 5
CAN-H (LSB)
Connection cable schielded, max. cable cross section of 1mm2 .
Maximum cable length should not exceed 100m.
6
4
Operation
4
Operation
4.1
How to Set the Parameters with the Operating Unit
•
Programming unit, including connecting cable type 658 R 0932
•
Power supply 24VDC / 2,5W (from CarboSen ST)
•
Protection class according to EN 60529  IP40
Fig. 4-1 Connection CarboSen to programming unit
1
programming unit
2
terminating resistor LSB
3
connecting cable, 2m
4
adaptor cable, 20cm
5
plug A2
7
4
4.2
Operation
Panel Installation option
•
Panel installation frame for programming unit
Item no. 663 R 0932T
•
Protection class according to EN 60529IP54
Fig. 4-2 Programming unit in panel
installation frame
8
Fig. 4-3 Panel cutout 105 x 183
5
Accessories
5
Accessories
5.1
Analogue Output Module with address 19 for Display of Measurement Signals
4 analogue output 0...10VDC (non-floating) or 
type 663 R 4025
•
or
Fig. 5-1 analogue output module
•
4 analogue output (non-floating)
type 663 R 4029
•
for producing:
– average sensor voltage
– sensor voltage 1
– sensor voltage 2
– heating power
– internal resistance of heating
– pulse width heating
– internal resistance of sensors
– COe
•
adjustable in parameter 810...825 of the CarboSen ST
Technical Data of the Module:
rated voltage
24V DC
current consumption
50mA
power consumption
1,2W
range of operating voltage
0,8...1,1 x rated voltage UN
range of operating temperature 0°C...+70°C
storing temperature
-25°C...+70°C
protective circuit
inverse-polarity protection of the operating voltage
display of function
LED, green  BUS activity and power supply
display of operation
LED, red  fault indication BUS
Voltage Outputs:
current output (10V DC)
5mA
resolution
9,9165mV/digit
voltage output
0...10V DC
response time 
(receive to send)
15ms
recovery time
550ms
Current Outputs:
current output
0...20mA
accuracy
1%
load
max. 300
response time
(receive to send)
15ms
9
5
Accessories
recovery time
550ms
Housing:
protection class according to
EN 60529
0...20mA
range of the relative humidity
according to IEC60721-3-3
environmental classification 3k3
cable cross section of the out- 2,5mm
put terminals
5.2
cable cross section at the
screwable push terminal
(BUS, supply)
1,5mm2
weight
95g
dimension
BxTxH 35x68x60 mm
Digital Output Module with module address 03
•
4 relay output 250 V, 6 A (floating) 
type 663 R 40275
•
output 1 – limit value 1
output 2 – limit value 2
output 3 – not measured
output 4 - fault
•
manually operated emergency menu
setting „1“ output contact closed at all times
setting „A“ output contact switch over to LSB
setting „0“ output contact opened at all times
Fig. 5-2 digital output module
Technical Data of the Module:
rated voltage
24V DC
current consumption
100mA
power consumption
2,4W
range of operating voltage
0,8...1,1 x rated voltage UN
response time 
(receive to relay switches)
15ms
fallback delay 
(receive to relay switches)
15ms
recovery time
200ms
range of operating temperature 0°C...+55°C
storing temperature
-25°C...+70°C
protective circuit
inverse-polarity protection of the operating voltage
10
5
Accessories
display of relay status
LED
display of function
LED, green  BUS activity and power supply
display of operation
LED, red  fault indication BUS
specific feature
manual control level with feedback via BUS
Outputs:
output contact / material
4 switches NO / AGNI
switching voltage
max. 250V
current output / input max.
12A / 4s at 10% ED
continuous current
6A relay but max. 12A module
fuse protection of the contacts
6A
life cycle (mechanic)
1x107 working cycle
life cycle (electric)
1x109 working cycle
permissible switching rated
360/h at nominal load
Isolation according to VDE 0110 C
rated voltage
250V
over voltage classification
II
degree of pollution
2
test voltage coil / contact
4000V AC 50Hz 1 min
test voltage contact / contact
1000V AC 50Hz 1 min
Housing:
protection class according to
EN 60529
housing IP50 terminals IP20
range of the relative humidity
according to IEC60721-3-3
environmental classification 3k3
cable cross section of the output terminals
2,5mm2
cable cross section at the
screwable push terminal (BUS,
supply)
1,5mm2
weight
95g
dimension
BxTxH 35x68x60 mm
11
5
5.3
Accessories
Digital Input Module with module address 11
•
4 digital inputs 24V/DC
The inputs are executed with an input voltage of 24V/DC
with electrical isolation.
type 663 R 4028
•
input 1 – RESET limit values 1 & 2
input 2 – not assigned
input 3 – start sensor test
input 4 – RESET fault / warning
•
manually operated emergency menu
setting „1“  input is HIGH at all times
setting „A“  input switches over contact from outside
setting „0“  input is LOW at all times
Fig. 5-3 digital input module
Technical Data of the Module:
rated voltage
24V DC
current consumption
50mA
power consumption
1,2W
range of operating voltage
0,8...1,1 x rated voltage UN
range of operating temperature 0°C...+55°C
storing temperature
-25°C...+70°C
protective circuit
inverse-polarity protection of the operating voltage
display of function
LED, green  BUS activity and power supply
display of operation
LED, red  fault indication BUS
specific feature
manual control level with feedback via BUS
test voltage input / BUS
2500V AC 50Hz 1min
Digital Inputs:
input voltage (control input)
30V DC
input current (24V DC) (control input)
6mA
High-signal detection
>7V DC
response time 
(receive to send)
15ms
recovery time
550ms
Housing:
protection class according to
EN 60529
housing IP50 terminals IP20
range of the relative humidity
according to IEC60721-3-3
environmental classification 3k3
12
5
Accessories
cable cross section of the 
output terminals
2,5mm
cable cross section at the
screwable push terminal
(BUS, supply)
1,5mm2
weight
95g
dimensions
BxTxH 35x68x60 mm
1+/1- = input 1
2+/2- = input 2
3+/3- = input 3
4+/4- = input 4
24V DC = power
supply
Fig. 5-4 terminal assignment of the digital input module
5.4
Power Pack
Ext. power pack 230VAC/24VDC - 1.5A (35W) for power supply of CarboSen ST, the programming unit and the module
•
Type 658 R 01095
•
Range of input voltage 85...264 VAC, 47...63 Hz
•
Typical current consumption 0.48A
•
Installing on mounting rail TS35
•
Operational temperature range -20...+60°C
•
Weight 270gr
•
Protection class IP 20
13
5
Accessories
Fig. 5-5 Ext. Power Pack 230VAC/24VDC – 1,5A (35W) type 658 R 01095
Fig. 5-6 Dimensional diagram ext. Power Pack type 658 R 01095
14
6
6
Ordering Information
Ordering Information
Accessories
Product / Type
Order No.
Programming unit, for the setting of CarboSen parameters in sets (connection cable included)
658 R 0932
Panel installation frame for programming unit
663 R 0932T
Analogue output module 0...10 V with the address 19
663 R 4025
Analogue output module 0...20 mA with the address 19
663 R 4029
Digital output module with the address 03
663 R 4027
Digital input module with the address 11
663 R 4028
Ext. power pack 230 V AC / 24 V DC - 1.5A, for the power supply of CarboSen ST, the plug unit and the
module
658 R 0109
Spare Parts
Product / Type
Order No.
Replacement sensor 658 R 0010, 150mm
658 R 0013
CarboSen10.000HT-ST-Mounting 150mm
658 R 0017
CarboSen1.000HT-ST-Mounting 250mm
658 R 0018
CarboSen10.000HT-ST-Mounting 250mm
658 R 0019
Replacement sensor for 658 R 0030, 150mm
658 R 0031
Replacement electronics XC164 on the head of CarboSen ST
658 R 0105
Replacement connecting cable for the programming unit
663 R 0430
Replacement adapter cable for the programming unit
658 R 0426
Detailed explanation of terms
DS Top coat
HT High temperature (ceramic castings) 150°C - 400°C
G Glass castings
ST with electronics on the head
15
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: http://www.lamtec.de
email: info@lamtec.de
Schlesierstraße 55
D-04299 Leipzig
Telefon (+49) 0341 / 863294-00
Telefax (+49) 0341 / 863294-10
Presented by:
Print no. DLT5800-10-aEN-009
Printed in Germany
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising