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12.2.7 “2-wire Current”
Amplifiers with Single-
wire Shunt Cal
Use the following wiring diagram when connecting an amplified transducer or in-line
amplifier with a 2-wire current amplifier to a High-Level Input channel. Examples of
such devices include
•
transducers with the Option 2p internal amplifier (not equipped with shunt cal)
•
transducers with the Option 2p,3d internal amplifier (single-wire shunt cal)
•
transducers with the Option 2y internal amplifier (not equipped with shunt cal)
•
transducers with the Option 2y,3d internal amplifier (single-wire shunt cal)
The High-Level Input channel’s Configuration Jumpers must be set as follows for
proper operation. See “Excitation and Signal Jumpers” on page 100.
•
(+)Excitation supply: “+28 VDC”
•
(-)Excitation supply: “GND”
•
Signal type: “current”
•
Signal reference: “single ended”
Figure 12-6: “2-wire Current Amp w/Single-Wire Shunt Cal” Connection to High-Level Input Chan-
nel
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