Rice Lake Signal Conditioning Transmitter/Indicators - Manual (Page 8)

4 SCT Weight Transmitter Operator’s Manual
Load Cell Voltage Measurement (Use A Digital Multimeter):
• Remove weight of scale from load cell to be tested.
• Make sure that the excitation wires of the load cell connected to the instrument is 5 Vdc +/- 3%.
• Measure the millivolt signal between the positive and the negative signal wires by directly connecting them to
the multi-meter, and make sure it reads between 0 and 0.5 mV (thousandths of a Volt).
• Apply load to the load cell and make sure that there is a signal increment.
If one of the above conditions is not met, please contact the technical assistance service.
1.4 Specifications
• Weight indicator and transmitter for Omega/DIN rail mounting suitable for back panel; space saving vertical
shape. Six-digit semi alphanumeric display (18mm h), 7 segment. Four-key keyboard. Dimensions:
25x115x120 mm.
• Displays the gross weight; with an external contact capable of remote zeroing and gross/net switching.
• Peak weight function.
• Analog Output Option - Transmits the gross or net weight via opto-isolated analog output 16 bit, current 0-
20mA, 4-20mA or voltage 0-10V, 0-5V (±0V / ±5V by closing a soldered in jumper).
DeviceNet Option – It has a DeviceNet DP V0 Slave port that allows to exchange the main system parameters
with a DeviceNet master.
Profibus Option – It has a Profibus DP V0 Slave port that allows to exchange the main system parameters
with a Profibus master.
Ethernet Option – It has an Ethernet/IP device port that allows to exchange the main system parameters with
an Ethernet/IP scanner.
Modbus/TCP Option – It has a Modbus/TCP device port that allows to exchange the main system parameters
with a Modbus/TCP master.
• Transmits the gross or net weight via RS-485 serial port, by means of protocols:
- Modbus RTU
- ASCII bidirectional protocol
- Continuous transmission
Important
ANALOG OUTPUT
(Current and Voltage)
PLC
PLC or FIELD SIGNALS
2 DIGITAL INPUTS
(Optoisolated,
Externally supplied)
JUNCTION BOX
3 RELAY
MAX 8 LOAD CELLS IN
PARALLEL
RS-485
RS-232
Modbus RTU
SERIAL PORT
DC power
supplier
(12-24 Volt )
Other Options
Devicenet
Profibus
Ethernet
OUTPUTS