Lumel P20 User manual

1
USER’S MANUAL
TRANSDUCER OF TEMPERATURE
AND STANDARD SIGNALS
P20

2

3
Contents
1. APPLICATION ..........................................................................................5
2. TRANSDUCER SET ..................................................................................5
3. OPERATIONAL SAFETY ...........................................................................6
4. INSTALLATION ........................................................................................7
4.1. Fitting way .............................................................................7
4.2. External electrical connection diagrams ..............................8
5. SERVICE ..................................................................................................9
5.1. Transducer configuration by means of the eCon software .......... 10
5.1.1 Configuration of the transducer input type .......................11
5.1.2 Configuration of the individual analog output characteristic......12
5.1.3 Configuration of the analog output at overflows ...............13
5.1.4 Readout of the measured value .................................................14
5.1.5 Readout of the serial number and software version ...........15
6. TECHNICAL DATA ..................................................................................16
7. EXECUTION CODES ...............................................................................18
8. MAINTENANCE AND GUARANTEE .........................................................20

4

5
1. APPLICATION
The P20 programmable transducer is designed to convert temperature,
resistance, voltage from a shunt and standard signals into a constant-
current or constant-voltage standard signal.
The output signal is galvanicaly isolated from the input signal and
supply.
The transducer compensates automatically the resistance of wires in
case of resistance value measurements in a three-wire system and au-
tomatically compensates the temperature of terminals in case of mea-
surements from thermocouples.
The transducer is fully configurable through the PD14 programmer. By
means of this programmer, one can change the input type, the measu-
rement averaging time and rescale the analog output acc. to the indivi-
dual output characteristic, and also read out the measured value.
2. TRANSDUCER SET
The set of the P20 transducer is composed of:
- P20 transducer 1 pc.
- User’s manual 1 pc.
- Plug with screw terminals 2 pcs.
- Hole plug of the programmer socket 1 pc
When unpacking the transducer, please check whether the type and
execution code on the data plate correspond to the order.

6
3. OPERATIONAL SAFETY
In the safety service scope, the transducer meets to requirements of the
EN 61010-1 standard.
Observations concerning the operational safety
lAll operations concerning transport, installation, and commissioning
as well as maintenance, must be carried out by qualified, skilled
personnel, and national regulations for the prevention of accidents
must be observed.
lBefore switching transducer on, one must check the correctness
of connections to the network.
lWhen connecting the supply, one must remember that a switch or
a circuit-breaker should be installed in the building. This switch
should be located near the device, easy accessible by the
operator, and suitably marked as an element switching the
transducer off.
lDo not connect the transducer to the network through
an autotransformer.
lBefore removing the transducer housing, one must switch the
supply off and disconnect measuring circuits.
lThe removal of the transducer housing during the guarantee
contract period may cause its cancellation.
lThe programmer socket is only use to connect the PD14
programmer. After the transducer programming, one must
insert the hole plug.
lNon-authorized removal of the housing, inappropriate use, incorrect
installation or operation, creates the risk of injury to personnel
or a transducer damage.
For more detailed information, please study the User’s Manual.

7
22.5
41
4. INSTALLATION
4.1. Fitting way
P20 transducers are designed to be mounted on a 35 mm rail accor-
ding to EN 60715.
Housing dimensions are: 22.5 x 120 x 100 mm.
On the transducer outside, there are screw or self-locking terminal strips,
which make possible the connection of external wires with a 2.5 mm2
cross-section (supply and output) and up to 1.5 mm2(input).
Connector of the PD14 programmer
Fig. 1. Overall dimensions and fitting way of the transducer
Transdusers should be mounted on the rail in direct contact with an-
other devices that emit heat (eg transducer P20). You must keep a mini-
mum 5 mm distance between the devices to allow emit heat from the
housings to the ambient. Otherwise, the in rated operating temperature
of transducer which is in direct contact with the other transducer may
exceed the rated operating temperature stated operating conditions.

8
RTD in a three-wire
system
RTD in a two-wire
system or resistance
measurement
TC or voltage
- 60... 60 mV
0... 60 mV
- 150... 150 mV
0... 150 mV
Current
- 20... 20 mA
0... 20 mA
4... 20 mA
Voltage
- 10... 10 V
0... 10 V
0... 5 V
4.2. External electrical connection diagrams
The transducer has two sockets of terminal strips, which two plugs with
terminal screws are connected to. The way to connect external signals
is shown on the fig.1
The electrical connection diagram is also situated on the transducer
housing. In case of the transducer work in an environment with high
interferences, one must apply shielded wires in the transducer input.
Fig.2. Electrical connection diagrams of the P20 transducer.

9
5. SERVICE
After switching the transducer on, the work state diode should light in
red for a moment, next it should light in green.
P20
supply analog
output
Fig. 3. View of the P20 transducer
Diode of the transducer work state:
- the state diode lights in green – normal
work,
- the state diode lights in red – improper work
parameters; one must configure the trans-
ducer again,
- the state diode pulsates in red – lack of
calibration or the non-volatile memory is
damaged; one must return the transducer to
the manufacturer.
Confirmation of the separator’s communication with PD14 programmer
is indicated by the status diode which turns off for short period of time.

10
Fig. 4. Configuration of the connection with the P20 transducer.
5.1. Transducer configuration by means
of the eCon software
The eCon software is destined for the P20 transducer configuration.
One must connect the PC computer through the PD14 programmer and
configure the connection choosing Communication -> Serial port from
the menu (for the P20 transducer, we choose the address 1, baud rate
9600 kb/s, the mode RTU 8N2 and the appropriate port COM under
which the controller of the PD14 programmer has been installed).
After configuring the connection, use the Connect button.
The eCon software will automatically identify the device and con-
nect to it and display all parameters in the panel P20- Configuration.
To change parameters, enter the new value in the parameter window
and click the Save button.

11
5.1.1 Configuration of the transducer input type
In the parameter group Input configuration there are 3 expandable
lists available, by means of which you can select the input type,
measuring range and measurement averaging time. The changes must
be confirmed by clicking the Save button.
Fig. 5. View of the eCon software window “Input configuration”

12
where:
X1 In and X2 In – measured value
Y1 Out and Y2 Out – expected value on the output
Y1 Out = a .X1 In + b
Y2 Out = a .X2 In + b
5.1.2. Conguration of the analog output
characteristic
The P20 transducer enables the conversion of measured values into
an output signal on the base of the individual linear characteristic of
the analog output. On the base of given by the user coordinates of
two points, the transducer determines (from the system of equations)
coefficients aand bof the individual characteristic.
Fig. 6. Individual characteristic of analog outputs
The X1 In value on the transducer input
=> Y1 Out value on the analog output
The X2 In value on the transducer input
=> Y2 Out value on the analog output
Other points of the characteristic are calculated

13
Fig. 7. View of the eCon software window “Individual characteristic
configuration”
5.1.3. Configuration of the analog output at overflows
The user has the additional possibility in the P20 transducer to confi-
gure the preservation of the analog output after the signal overflow
occurrence on the measuring input. By default, the service of overflows
is switched out – then, after the signal overflow on the input, the out-
put is still proportional to the steered up input beyond the basic output
range. After switching the overflow service on, the user can define him-
self by which value the output is to be steered up after the occurrence
of the higher or lower overflow.

14
Fig. 8. View of the “ Output exceedings configuration”
window of the eCon software.
5.1.4. Readout of the measured value
By means of the eCon software you can also read the value currently
measured, check the type of output. These values can be found in the
Measured values window. To display the window, go to the Measured
values tab and use the Show button.
Fig.9. View of the “ Measured values” window of the eCon software

15
5.1.5. Readout of the serial number and software-
version
The serial number and the software version can be found in the upper
right corner of the configuration panel.
Fig.10. View of the “ Measured values” window of the eCon software
Fig.11. View of serial number and software version
in the eCon software

16
6. TECHNICAL DATA
Basic parameters:
- analog output galvanicaly isolated:
- current 0/4...20 mA
- voltage 0...10 V
- maximal load resistance of the
current output £500 W
- minimal load resistance of the
voltage output ³500 W
- accuracy class1) 0.2
- averaging time of the transducer:
- range: d.c. current [mA], d.c. voltage [V] ³0.1 s
- other ranges ³0.3 s
- consumption < 2 VA
- preheating time of the transducer 10 min
- transducer response time:
- range: d.c. current [mA], d.c. voltage [V] ³0.2 s
- other ranges ³0.4 s
- current flowing through RTD < 0.2 mA
- resistance of wires connecting
RTD with the transducer £10 W
Rated operating conditions:
- supply depending on the
execution code 85... 253 V a.c./d.c.
20...85 V d.c., 20...65 V a.c.
- frequency of the supply a.c. voltage 45... 65 Hz
- ambient temperature – 20...23...55°C
- storage temperature – 25...85°C
- related air humidity < 95% (condensation
inadmissible)
- working position any

17
Input parameters:
- resistance of voltage input [V] > 1 MW
- resistance of current input [mA] 12 W±1%
Sustained overload:
- TC and RTD 1.1 Xn
- voltage, current and resistance 1.3 Xn
Short duration overload:
- voltage input 5 Un
- current input 10 In
Ensured protection level
acc. to EN 60529:
- housing IP 40
- from terminal side IP 20
Dimensions: 22.5 ´100 ´120 mm
Weight: 0.125 kg
Fitting on a 35 mm DIN rail,
acc. to EN 60715
Electromagnetic compatibility:
- noise immunity EN 61000-6-2
- noise emission EN 61000-6-4
Safety requirements acc. to EN 61010-1:
- installation category III
- pollution degree 2
- phase-to-earth working voltage:
- supply 300 V2)
- input 50 V
- output 50 V
- altitude above sea level < 2000 m
1) A part of sub-ranges for thermocouples and RTD has a specied individual
class – see table 3
2) Execution for supply voltage 230 V.

18
7. EXECUTION CODES
Execution codes of the P20 transducer
Table 2.
TRANSDUCER P20 - X X XX XX X
Analog outputs:
current 0... 20 mA...................... 1
current 4... 20 mA...................... 2
voltage 0... 10 V ........................3
Supply:
85...253 V a.c./d.c. ............................1
20 … 85 V d.c., 20...65 V a.c. ...........2
Kind of input
see table 3............................................... XX
Execution:
standard ..........................................................00
custom-made* .................................................XX
Acceptance tests:
without extra quality requirements ........................... 8
with an extra quality inspection certicate................ 7
with test certificate.................................................... 4
acc. to customer’s requirements*.............................X
* after agreeing with the manufacturer

19
Coding of the P20 transducer input kind Table 3.
Kod
Pt100 RTD -200...850 01
0...850 02
0...600 03
0...400 04
0...200 05
-200...200 06
-100...100* 07
Pt 250 RTD -200...850 08
0...850 09
0...600 10
0...400 11
0...200 12
-200...200 13
-100...100 14
Pt 500 RTD -200...850 15
0...850 16
0...600 17
0...400 18
0...200 19
-200...200 20
-100...100 21
Pt1000 RTD -200...850 22
0...850 23
0...600 24
0...400 25
0...200 26
-200...200 27
-100...100 28
TC of J type -200...1200 29
0...1200 30
0...1000 31
0...800 32
0...600 33
0...400* 34
-200...200* 35
TC of K type -200...1370 36
0...1200 37
0...1000 38
0...800 39
0...600 40
0...400* 41
-200...200* 42
TC of S type 0...1760 43
0...1600 44
0...1400* 45
0...1200* 46
0...1000* 47
TC of N type -200...1200 48
0...1200 49
0...1000 50
0...800 51
0...600* 52
0...400* 53
-200...200* 54
d.c. voltage 0...10 V 55
0...5 V 56
-10...10 V 57
-5...5 V 58
0...60 mV 59
-60...60 mV 60
0...150 mV 61
-150...150 mV 62
d.c. current 0...20 mA 63
4...20 mA 64
0...5 mA 65
-20...20 mA 66
Resistance 0...400 W67
0...4000
W68
Custom-made execution XX
Type of
sensor/input Range [°C]
* accuracy class 0,5

20
Example of order:
When ordering, please respect successive code numbers.
The code: P20-1.1.04.00.7 means:
P20 – transducer of temperature and standard signals
1– with current analog output: 0…20 mA,
1– voltage supply: 85…253 V a.c./d.c.,
04 – Pt100 input signal, 0…400°C range,
00 – standard execution
7 – with an extra quality inspection certicate
8. MAINTENANCE AND GUARANTEE
The P20 transducer does not require any periodical maintenance.
In case of some incorrect operations:
After the dispatch date and in the period stated in the guarantee
card:
One should return the transducer to the Manufacturer’s Quality
Inspection Dept.
If the instrument has been used in compliance with the instructions,
we guarantee to repair it free of charge.
The disassembling of the housing causes the cancellation of the
granted guarantee.
After the guarantee period:
One should turn over the instrument to repair it in a certied service
workshop.
Spare parts are available for the period of ve years from the date of
purchase.
We reserves the right to make changes in design and
specications of any products as engineering advances
or necessity requires.