Wiring Outputs - Wiring Hookup; Strain Gauge; Figure 2.9 4-Wire Voltage Input With Internal Excitation; Figure 2.10 A) - Omega i Series User Manual

2.3.4 Strain Gauge (continued)
The figure below shows Voltage (bridge with
amplified output) input with internal excitation.
Where:
+S: signal plus
-S: signal return
+Ext: excitation plus
-Ext: excitation return
+E: plus excitation sense
-E: minus excitation sense.

2.3.5 Wiring Outputs

This meter has two, factory installed, outputs. The SPDT Mechanical Relay, SPST
Solid State Relay, Pulse and Analog Output Connection are shown below.
Figure 2.10 a) Mechanical Relay and SSR b) Pulse and Analog
Outputs Wiring Hookup
This device has snubber circuits
designed to protect the contacts of the
mechanical relays when it switches
inductive loads (i.e. solenoids, relays). These
snubbers are internally connected between the
Common (C) and Normally Open (NO) relay
contacts of Output 1 and Output 2.
If you have an inductive load connected
between Common (C) and Normally Closed
(NC) contacts of the mechanical relays and you
want to protect them from the rush current
during the switching period, you have to connect
an external snubber circuit between Common
(C) and Normally Closed (NC) contacts as
indicated in the figure below.
4-Wire Voltage Input (Bridge
withAmplified Output)
with Internal Excitation.
Outputs Wiring Hookup
Figure 2.11 Snubber
Circuits Wiring Hookup
10
Figure 2.9