Unipulse F805AT-CK, Руководство по эксплуатации

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4.WAY OF CONNECTION
21
4-1-4. Connecting load cells in parallel
Some industrial applications require several load cells connected in parallel (e.g., tank or flow scales).
A summing junction box should be used to facilitate connection and corner correction.
4-1-5. Sensor cable
Cable colors of sensors may differ from one manufacturer to another (it may even differ from one
model to another for some products). Refer to the sensor manual (or data sheet) and check signal names
and colors in order to connect the cables correctly.
R
R
R
R
R
R
+EXC
-SIG
+SIG
-EXC
+EXC
-SIG
-EXC
+SIG
SHIELD
+S
-S
‘n’ (number) load cells connected in
parallel are considered one unit whose
capacity is ‘n’ x rated capacity of load
cells (load cells must have the same
capacity, bridge resistance, and mV/V).
The averaging resistor (R) must be in
same relative ratios with a low
temperature coefficient.
Averaging resistors are not needed if
load cells were designed for parallel
connection.
R
R
Notice
When connecting several
load cells in parallel, load cell
capacity should be higher
than expected load to
compensate for mechanical
shock or eccentric loading.