Operating instructions

§ Attach the cable to the weighing platform as follows:
– Expose approximately 5 cm (2 inches) of the wires for installation.
– Strip the casing from approximately 1 cm (1/2 inch) of the wires and attach ferrules
to the wires.
– Install the ferrite ferrule over wires 1 to 6
– Securely attach the wires to the screw terminals.
Wiring Diagram
No. Signal name Meaning
1 BR_POS Bridge supply voltage, positive
2 SENSE_POS Sense (+)
Bridge supply voltage
3 OUT_POS Measuring voltage, positive
4 OUT_NEG Measuring voltage, negative
5 SENSE_NEG Sense (-)
Bridge supply voltage
6 BR_NEG Bridge supply voltage, negative
!Note:
Please refer to the data sheet or operating instructions for the load cell or weighing platform
in question for details on the assignment of wire colors to signals. Disconnect any lines that
are not used.
Weighing platform with 4-wire technology:
!If a load receptor that uses 4-wire technology is connected, connect wire 1 (BR_POS)
to wire 2 (SENSE_POS) and wire 6 (BR_NEG) to wire 5 (SENSE_NEG).
Connecting the Combics to AC Power
§ Check the voltage rating and the plug design.
$ The indicator is powered through the pre-installed power cord. The power supply is built
into the indicator, which can be operated with a supply voltage of 100V to 240V.
Make sure that the voltage rating printed on the manufacturer´s ID label is identical to that
of your local line voltage. If the voltage specified on the label or the plug design of the
AC adapter does not match the rating or standard you use, please contact your Sartorius
office or dealer. The power connection must be made in accordance with the regulations
applicable in the U.S.
§ To power a protective class 1 device, plug the power cord into an electrical outlet that is
properly installed with a protective grounding conductor.
Safety Precautions
If your local AC output does not have a protective grounding conductor have a certified
electrician install equivalent protection according to installation requirements. You may not
neutralize the protective grounding effect by using an extension cord that lacks a protective
grounding conductor.
Connecting Electronic Peripheral Devices
§ Make absolutely sure to unplug the device from AC power before you connect or disconnect
a peripheral device (printer or PC) to or from the interface port.
Warmup Time
To deliver exact results, the device must warm up for at least 30 minutes after initial
connection to AC power or after a relatively long power outage. Only after this time will
the device have reached the required operating temperature.
Using Equipment Verified as Legal for Trade Instruments:
$ Make sure to allow the equipment to warm up for at least 24 hours after initial connection
to AC power or after a relatively long power outage.
!The indicator may be opened only by authorized service technicians who have been
trained by Sartorius and who follow Sartorius’ standard operating procedures for
maintenance and repair.
8