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Helios PD2-6100 Strain Gauge, Load Cell, and mV Meter
Instruction Manual
18
Shunt Resistor (Switch 5)
The PD2-6100 provides a means of simulating strain
in a strain gauge bridge circuit via a 60.4K
Ω shunt
resistor included in the meter. This will simulate an
approximate 70% full-scale load in the case of a 350
Ω
strain bridge.
OFF
Shunt
Shunt resistor is
disconnected
from the input
bridge.
Turn this switch
OFF to remove the
shunt resistor
ON
Shunt
Shunt resistor is
connected to the
input bridge.
Turn switch ON
when you want to
simulate a strain
load
Strain Gauge Connections
The following figures show examples of strain gauge
connections.
There is a 5-position DIP switch (CONFIG) to set up
the input ranges and sensor excitation.
Note: Refer to Switch Configuration on page 17 for
proper configuration switch positioning.
Figure 13. Strain Gauge Powered by Internal
Supply
Figure 14. Strain Gauge Powered by External
Supply
When connecting multiple strain gauges to the meter,
each must be wired in parallel. This is typically done
with the use of a junction box.
Figure 15. Multiple Strain Gauges Connected
Through Junction Box
Figure 16. mV Transducer Input Connections
Figure 17. Four-wire mV Transducer Connections
Notes
1.
Two-wire mV signals: Connect positive to SG+
and negative to SG-
2.
Three-wire transducer: Connect EX- to SG-.