Seneca K121 Installation Manual

SENECA
S
Z-PC Line K Line
Z-PC Line K Line
K121
K121
EN EN
EN EN
Universal isolated transmitter
Universal isolated transmitter
with 2 wire - loop powered
with 2 wire - loop powered
Installation
Installation
Manual
Manual
Contents:
Ø General specifications
Technical features
Ø
Ø Diagram: Load resistance vs minimum
functioning voltage.
Ø Installation / Connections rules
Ø Electrical connections
Table: Input range and accuracy of
Ø
measure
Ø Factory settings and advanced
settings.
SENECA s.r.l.
Via Germania, 34 - 35127 - Z.I. CAMIN - PADOVA - ITALY
Tel. +39.049.8705355 - 8705359 - Fax +39.049.8706287
For manuals and configuration software, see www.seneca.it
This document is property of SENECA srl. Duplication and reprodution are forbidden, if not authorized.
Contents of the present documentation refers to products and technologies described in it. All technical data
contained in the document may be modified without prior notice Content of this documentation is subject to
periodical revision.
MI002152-I-E
GENERAL SPECIFICATIONS
Conversion and transmission of the input read into a normalized signal current in the
?
output for the loop 4 ..20 mA that is connected with 2 wire connection.
? Thermocouple input J, K, R, S, T, B, E, N ( EN 60584 ).
? RTD input (PT100 - 500 - 1000, Ni100) with 2, 3 o 4 wire connections.
? Voltage input ± 30 V.
? Voltage input ± 150 mV
? Current input ± 24 mA.
? Potentiometer input with resistance between 500 Ω and 10 KΩ.
Resistance input up to 1760 Ω.
?
? Reduced response time (Voltage and Current input): 140 ms
? Reduced response time (Other inputs): < 620 ms
? High precision.
? 16-bit measurement conversion.
? 1500 Vac output isolation.
Compact size 93 x 102,5 x 6,2 mm.
?
TECHNICAL FEATURES
Output / Power supply
Power supply 7 ..30 V
DC
< 660 mW
Power consumption
4 ..20 mA
Current output
Load resistance 1 kΩ @ 28 Vdc, 21 mA (see the diagram
Load resistance vs minimum functioning
voltage).
Resolution 2 µA (> 13 bit)
Output in case of over-range + 2,5% of end scale, - 2,5% of start scale
+ 5% of end scale, - 5% of start scale
Output in case of fault
Current output protection ~ 30 mA
Potentiometer input
Value of potentiometer
From 500 Ω to 10 kΩ
Input impedance 10 MΩ
Thermocouple input
Input impedance 10 MΩ
Cold junction compensation -40 ..65 ± 1,5°C; Settable
Sensor fault detection Yes; Settable
RTD input / Resistance
Exitation current 375 µA
Maximum cable resistance 25 Ω
Influence cable resistancei 0,003 Ω/Ω
MI002152-I-E
Voltage (mV) input
Input impedance
10 MΩ
Input range
-150 ..150 mV
Voltage (V) input
Input impedance
200 kΩ
Input range -30 ..30 Vdc
Current input
Input impedance
40 Ω
Input range
-24 ..24 mA
Environmental condition
Operating temperature -20 ..+65°C
Humidity 30 ..90% a 40°C non condensing
Storage temperature -20 ..+85°C
IP20
degree protection
Connections
Connections 8 Spring terminals
Dimensions / Box
Dimensions L: 93 mm; H: 102,5
Box PBT, Black
Isolation Standards
1500 V
The module is conforming to the following regulations:
E N 6 1 0 0 0 - 6 - 4 / 2 0 0 2 ( E l e c t r o m a g n e t i c
5 6
e m i s s i o n , i n d u s t r i a l e n v i r o n m e n t ) .
E N 6 1 0 0 0 - 6 - 2 / 2 0 0 6 ( E l e c t r o m a g n e t i c
1
i m m u n i t y, i n d u s t r i a l e n v i r o n m e n t ) .
2
3
EN61010-1/2001 (safety). All circuits must be
4
7 isolated from the other circuits under
8
dangerous voltage with double isolation. The
power supply transformer must comply with
EN60742 "Isolated transformers and safety
transformers".
SUPPLEMENTARY NOTE FOR USE:
Use in environment with 2 or less pollution degree.
ENGLISH 1/8 MI002152-I-E
DIAGRAM: LOAD RESISTANCE VS MINIMUM
FUNCTIONING VOLTAGE
1200
800
400
0
5 10 15 20 25
Minimum functioning voltage U (V )
DC
Fig. 1
INSTALLATION / CONNECTIONS RULES
Installation on DIN46277 rail
The module is designed to be installed, in vertical position, on DIN 46277 rail. For the best
module performance and duration, avoid to place cables raceways and other objects that
could obstruct the ventilation.
Never install the modules near heat sources. The module installation is advised in the bottom
of the control panel.
Inserting the module in the rail Removing the module from the rail
Fig.2a
1) Attach the module in the upper part of 1) Apply leverage using a screwdriver ( as
the rail (as shown in the picture 2a). shown in the picture 2b)
2) Press the module downwards. 2) Rotate the module upwards.
ENGLISH 2/8
MI002152-I-E
Connections with spring terminals
Fig. 3
The module has been designed for spring-type terminal electrical connections:
Proceed as follows to make the connections:
mm; W: 6,2 mm
1) Strip the cables by 0.8 mm.
2) Insert a screwdriver in the square hole and press it until the cable lock spring opens..
3) Insert the cable in the round hole.
4) Remove the screwdriver and make sure that the cable is tightly fastened in the terminal.
ELECTRICAL CONNECTIONS
Description
The signal input may come from thermocouple J, K, R, S, T, B, E, N (EN 60584) sensors or
RTD (thermoresistance) like t P 100 N 100 P 500 P 1000
K121 besides can read voltages in V and mV, current in mA , and resistances.
For the maximum performance it's recommended to use a shielded cable.
See Fig. 4 below for input connections.
ENGLISH 3/8
Potentiometer Volt. (V) Volt. (mV)
R =((U-7)/0.021)
Load
30
Fig. 4
RTD 2 wire connection
This connection can be used for short distances ( < 10 m) between module and probe, you
should note that it adds an error (which may be removed by sofware programming) equivalent
to the resistance contributed by the connection cables to the measurement.
The module must be programmed by PC for 2 wire connection
RTD 3 wire connection
This connection can be used for medium-long distances ( > 10 m ) between module and
probe. The instrument performs a compensation for the resistance of the connection cables.
For a correct compensation the resistance value of each conductor must be the same.
The module must be programmed by PC for 3 wire connection.
RTD 4 wire connection
This connection can be used for medium-long distances ( > 10 m ) between module and
probe. Provides the maximum precision because the instrument measures the resistance of
the sensor independently of the resistance of the connection cables
The module must be programmed by PC for 4 wire connection.
Output and power supply from loop 4 ..20 mA
Current Loop connection (regulated current).
The use of shielded cables is recommended for the
electric connections.
Note: in order to reduce the instrument's
dissipation, we recommend guaranteeing a load of
Fig. 2b > 250 to the current output.
Table: Output signal limit / fault or over-range
Output signal limit Over-range /
20 mA 20,4 mA
4 mA 3,6 mA
ENGLISH 4/8
Input
Pt1000
Voltage
Potent.
Resist.
Resist.
Voltage
Current
Input type
Thermocouple J,K,T,N,E
Thermocouple B, R, S
Input
RTD
Resistance F.S. = 400
Resistance F.S. = 1760
, i , t , t and Ni100 .
Voltage mV
Potentiometer
Voltage V
Current
MI002152-I-E ENGLISH 5/8
FACTORY SETTINGS AND ADVANCED SETTINGS
Current TC RTD
2 Wire 3 Wire 4 Wire
1
? Cold junction compensation: YES.
? Input filter: DISABLE.
? Reversed output: NO.
2
TC Type: K.
?
? Measurement range start: 0°C.
3
? Measurement full-scale: 1000 °C.
? Output signal in case of fault: Towards the top of the output range.
? Over-range: YES, at 2,5% over-range values is accepted, at 5% over-range value is
4 considered a fault.
I
7
? Setting of the start scale and full scale value.
? RTD: 2 wire, 3 wire, 4 wire connections.
? Measure filter: Enable / Disable
8
? Output: Normal (4 ..20 mA) or reversed (20 ..4 mA).
? Selection of input type.
Cable resistance compensation for 2 wires measurement.
?
? Output signal in case of fault: towards the bottom or towards the top of the output range
? Over-range: NO (the fault alone causes at 2,5% over range value) or YES (at 2,5 over-range
value is accepted, at 5 % over range value is considered a fault).
? Cold junction compensation:YES / NO.
The configuration by PC use (see the drawing below) is possible with the following
accessories
.
I
5
Variations of standard parameters are possible by using configuration softwares. See
mA
6
www.seneca.it
Fig. 5
Disposal of Electrical & Electronic Equipment (Applicable throughout the European Union and other European
countries with separate collections programs). This symbol, found on your producr or on its packaging, indicates
that this product should not be treated as household waste when you wish to dispose of it. Instead, it should be
handed over to an applicable collection point for the recycling of electrical & electronic equipment. By ensuring this
product is didposed of correctly, you will help prevent potential negative consequences to the environment and
± 2,5 % Fault ± 5 %
human health, which could otherwise be caused by inappropriate disposal of this product. The recycling of materials
21 mA
will help to conserve natural resources. For more detailed information about the recycling of the product, please
contact your local city office, waste disposal service of the retail store where you purchased this product.
< 3,4 mA
MI002152-I-E ENGLISH 6/8
TABLE: INPUT RANGE AND ACCURACY
OF MEASURE
Minimum
Calibration
Range
EMI Resolution Standard
Span
error
0,1 % 50 °C 5 µV
J -210..1200 °C < 0,5 % EN 60584
0,1 % 50 °C
K -200..1372 °C < 0,5 % 5 µV EN 60584
0,1 % 100 °C
R -50..1768 °C < 0,5 % 5 µV EN 60584
0,1 % 100 °C
S -50..1768 °C < 0,5 % 5 µV EN 60584
0,1 % 50 °C
T -200..400 °C < 0,5 % 5 µV EN 60584
0,1 % 100 °C
B 0..1820 °C < 0,5 % EN 60584
5 µV
0,1 % 50 °C
E -200..1000 °C < 0,5 % EN 60584
5 µV
0,1 % 50 °C
N -200..1300 °C < 0,5 % EN 60584
5 µV
0,1 % 20 °C
-60..250 °C < 0,5 % 6 m DIN 43760
Ni100
0,1 % 20 °C
-200..650 °C < 0,5 % 6 m EN 60751
Pt100
0,1 % 20 °C
-200..650 °C < 0,5 % 28 m
Pt500
0,1 % 20 °C 28 m
-200..200 °C < 0,5 %
0,1 % < 0,5 % 2,5 mV
mV -150..150 mV 5 µV
0,1 % < 0,5 %
500.. 10000 10 % 0.0015 %
0,1 % < 0,5 % 6 m
0..400 10
0,1 % < 0,5 % 10 % 28 m
0..1760
V -30 ..30 Vdc 0,1 % < 0,5 % 0,5 V ~ 1 mV
mA ~ 1 µA
-24 ..24 mA 0,1 % < 0,5 % 0,5 mA
Table of accuracy measure: The greater of
the sum of (A+B) and C
C : Minimum
A : % of measure B : % of span
0.05 % 0.05 % 0.5 °C
0.05 % 0.05 %
1 °C
0.05 % 0.05 % 0.1 °C
0.05 % 0.05 %
40 m
0.05 % 0.05 % 200 m
0.05 % 0.05 % 15 µV
3 mV
0.05 % 0.05 %
0.05 % 0.05 % 3 mV
0.05 % 0.05 % 2 µA
MI002152-I-E ENGLISH 7/8
Factory settings
Advanced setting
Software configuration
S117P (USB/RS232
/TTL) converter
to consult the download section.
ENGLISH 8/8
MI002152-I-E