Rinstrum 1203 Manuale utente
1203
Weight Transmitter
Installation Manual
For use with Software Versions 1.0 and above
1203-601-120
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 2
Copyright
All Rights Reserved. No part of this document may be copied,
reproduced, republished, uploaded, posted, transmitted, distributed,
stored in or introduced into a retrieval system in any form, or by any
means (electronic, mechanical, photocopying, recording or
otherwise) whatsoever without prior written permission of
Rinstrum Pty Ltd.
Disclaimer
Rinstrum Pty Ltd reserves the right to make changes to the
products contained in this manual in order to improve design,
performance or reliability.
The information in this manual is believed to be accurate in all
respects at the time of publication, but is subject to change without
notice. Rinstrum Pty Ltd assumes no responsibility for any errors or
omissions and disclaims responsibility for any consequences
resulting from the use of the information provided herein.
“Everything should be made as simple as possible, but not
simpler.”
- Albert Einstein -
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 3
Table of Contents
1.
INTRODUCTION ..................................................................4
1.1.
Approvals ........................................................................4
1.2.
Features ..........................................................................4
1.3.
Manuals...........................................................................5
1.4.
Models.............................................................................5
2.
SPECIFICATIONS................................................................6
3.
INFORMATION.....................................................................7
3.1.
Digital Setup....................................................................7
3.2.
Setpoints .........................................................................7
3.3.
Remote Input...................................................................7
3.4.
LEDs ...............................................................................7
3.5.
1203 Viewer Software .....................................................7
4.
WARNINGS ..........................................................................8
4.1.
General ...........................................................................8
4.2.
Power Supply ..................................................................8
4.3.
Load Cell Signals and Scale Build ..................................8
4.4.
6-Wire Connection ..........................................................9
4.5.
4-Wire Connection ..........................................................9
4.6.
Serial Ports......................................................................9
4.7.
Cable Shield Connection and Earthing .........................10
5.
CONNECTIONS .................................................................11
5.1.
Load Cell: 6-Wire Connection (J4) ................................11
5.2.
Load Cell: 4-Wire Connection (J4) ................................11
5.3.
Communications: RS-232 Connection (J1)...................12
5.4.
Communications: RS-232 Connection (J6)...................12
5.5.
Communications: RS-485 Connection (J1)...................13
5.6.
Communications: RS-485 Connection (J6)...................13
5.7.
Analog Out (J8) .............................................................14
5.8.
Input / Output: Setpoints (J10) ......................................14
5.9.
Input / Output: Inputs (J10) ...........................................14
5.10.
Power (J12)...................................................................15
6.
CONTROLS........................................................................15
7.
COMMANDS.......................................................................16
7.1.
Query Error Status ........................................................16
7.2.
Query Scale mV/V Value ..............................................17
7.3.
Force Setpoint Outputs .................................................17
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 4
1. Introduction
The 1203 is a precision digital weight transmitter
using the latest Sigma-Delta A/D converter to ensure
extremely fast and accurate weight readings.
1.1. Approvals
•C-tick approved. CE approved. UL approval
pending.
1.2. Features
•Digital setup and calibration.
•Non-volatile security store (retains Zero / Tare, etc.).
•Outputs both 4-20mA and 0-10V analog.
•Two trip points with output drive and status display
via LEDs.
•One opto-isolated configurable input.
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 5
•Two serial outputs allowing communication with
external computers, PLCs and remote displays.
Serial 1: RS-232 and Serial 2: 4-wire RS-485.
•The 1203 has filtering options available which allow
it to be optimised to produce the most accurate
readings possible in the shortest time.
1.3. Manuals
•For more information on the 1203 refer to the 1203
Weight Transmitter Reference Manual and 1203
Display Manual (available free of charge from
www.rinstrum.com).
1.4. Models
•1203 Weight Transmitter P/No: 1203
•1203 Weight Transmitter with Display P/No: 1203/D
•1203 Weight Transmitter - PCB Only P/No: 1203/B
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 6
2. Specifications
General
Operating
Environment
Temperature –10 to +50°C ambient
Humidity: <90% non-condensing
Power Supply 12VDC at 500mA max to
24VDC at 250mA max
Analog Input
Load Cells Excitation: 8VDC
Connection: 6-wire + shield
Available Excitation Current: 150mA
(6 x 350Ωload cells)
Analog Output
Type Configurable (4-20mA, 0-24mA, 0-
20mA, –10-10V, 0-10V, 2-10V, 0-5V,
1-5V, etc)
Isolation >500V
Impedance Maximum current-loop impedance:
1000Ω
Minimum impedance between voltage
outputs 2000Ω
Communications
Serial Output RS-485 full duplex and RS-232 full
duplex
Capability Automatic transmit and network
Input / Output
Input Voltage
Range
Active input voltage range: 5-28VDC
Input Current
Requirements
1.5mA at 5VDC to 13mA at 28VDC
Load Output Maximum load on output: 300mA
Voltage Output Maximum operating voltage on output:
30VDC
Output Protection Reverse and short-circuit protected
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 7
3. Information
3.1. Digital Setup
•Digital setup is carried out entirely using the serial
communications links or by using the 1203/S
Service Tool (Display/Keys).
3.2. Setpoints
•Each setpoint provides a simple comparator
function that can be modified.
•Target weight, switching direction, hysteresis and
logic can be configured.
•Outputs can be forced ON or OFF.
3.3. Remote Input
•Instrument has one remote input that can be
configured to perform a variety of operations.
3.4. LEDs
•The flashing green LED indicates the 1203 is ON.
•The flashing red LED indicates the 1203 is
experiencing an error.
3.5. 1203 Viewer Software
•The 1203 Viewer Software can be used in the setup
of the instrument. This software is available by
contacting Rinstrum or from the web site at
www.rinstrum.com.
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 8
4. Warnings
4.1. General
•Instrument not to be subject to shock, excessive
vibration or extremes of temperature (before or after
installation).
•Inputs are protected against electrical interference,
but excessive levels of electro-magnetic radiation
and RFI may affect the accuracy and stability.
•Instrument and load cell cable are sensitive to
electrical noise. Install well away from any power or
switching circuits.
4.2. Power Supply
•DC supply need not be regulated provided it is free
of excessive electrical noise and sudden transients.
•Instrument can be operated from high quality plug-
pack provided there is sufficient capacity to drive
both it and load cells.
•Instrument is constructed to use 12-24 VDC only.
Voltages outside this range may cause improper
operation or damage.
4.3. Load Cell Signals and Scale Build
•Very low output scale bases can be used but may
induce some instability in weight readings when
used with higher resolutions (ie. higher output/lower
number of divisions equals greater display
stability/accuracy).
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 9
4.4. 6-Wire Connection
•Load Cell Wiring: Use only high quality shielded
multi-core cable.
•Separation distance to other cabling to be not less
than 150mm.
•Do not bundle load cell cables with power or
control-switching cables. Interference can trigger
display instability/unreliable operation.
4.5. 4-Wire Connection
•Instrument not fitted with auto-sensing of load cell
excitation.
•Terminals 3 & 5 and 4 & 6 on the load cell
connector (J4) must be joined by wire bridge.
4.6. Serial Ports
•Serial ports not completely independent.
Commands cannot be sent to 1203 on both ports
simultaneously.
•Serial 1 - RS-232 Port: Terminals 5 to 7 of
communications connector (J6) connected directly
to pins 2, 3 & 5 of the DB9 connector (J1).
•Serial 2 - RS-485 Port: Supports 4-wire full duplex
RS-485 only (ie. 2-wire half-duplex communications
not supported).
Terminals 1 to 4 of the communications connector
(J6) connected to pins 6 to 9 of DB9 connector (J1).
(J6.1-J1.9, J6.2-J1.8, J6.3-J1.7 and J6.4-J1.6).
•Multi-Drop Networking: End devices in multi-drop
RS-485 network may need termination resistors to
balance network loadings. Resistors are built into
1203 (enable/disable using digital setup).
Rinstrum - Weight Transmitter Installation Manual Rev 1.2
Page 10
IMPORTANT NOTICE
4.7. Cable Shield Connection and Earthing
•Care should be taken when connecting shields to
maximise EMC immunity and minimise earth loops
and cross-talk (interference) between instruments.
•For EMC immunity, termination of the load cell
shield at the 1203 end is important (ie. with
connection to the 1203 case via the shield
connection).
•1203 enclosure is directly connected to the shield
connections on the terminal blocks.
•1203 should be connected to earth via a single
reliable link to avoid earth loops.
•Where each instrument is separately earthed,
interconnecting cable shields should be connected
at one end only.
•Caution: Some load cells connect the cable shield
directly to the load cell (and therefore the scale
base). Connection of the shield in this situation may
be site specific.
•Instrument complies with relevant EMC standards
provided case ground connection is correctly made.
Resistance measured between 1203 case and
nearest earth point should be less than 2 ohms.
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