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DSC Strain Gauge Cabling Arrangement
STRAIN
GAUGE
Note: The specified cable above shows a yellow wire this will be replaced with a white wire.
Key Requirements
The Strain Gauge cable should be a twin twisted pair with independent shields, with the two pairs used for the EXC
and SIG signal-pairs.
For specified performance, the load cell must be grounded to the SH.
Communications Cabling and Grounding Requirements
To achieve full performance specifications and conform to environmental approvals, it is important to follow
the wiring procedures outlined in this section.
DCell Power and Communications Wiring
The following diagram illustrates how to connect a puck to the communications and power supply ("bus") cable.
DCell Bus-End Arrangement
M2 screw to metal body
A
B
CH
Body is Grounded
Note: The specified cable above shows a yellow wire this will be replaced with a white wire.
Key Requirements
The cable must enter the load cell via an EMC cable gland, which connects the cable shield to the load cell body.
This must be a 360 Degree connection
The cable should be a twin twisted pair with independent shields, with one pair used for the communications and
the other for the power wires.
There MUST be a common connection from the PSU and the RS485 ground to ensure the RS485 stays within the
required common mode voltage of +/- 7v.
The shield should be connected to the grounded enclosure of the power supply.
Micron Meters DCell & DSC User Manual
*Shield
EMC Gland
Note shield terminated
at EMC gland using
360° termination
*Tail length must be kept
to a mimimum
EMC Gland
2 x Twisted Pair
Note shield terminated
at EMC gland using
360° termination
'A'
(G)Data -
RS485
'B'
NuDam
ND-6520
+
- Power
(B)GND
-
PSU
+
62
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