Cooper Instruments & Systems DFI 1650 Multi-Channel Digital Force Indicator - Manual (Page 55)

CF 66 49 Rev. C 2/05
• (+)Excitation supply: “+28 VDC”
• (-)Excitation supply: “GND”
• Signal type: “current”
• Signal reference: “single ended”
Figure 12-5: “2-wire Current Amp w/Buffered Shunt Cal” Connection to High-Level Input Channel
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” in Section 12.3.
• (+)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 Channel
12.2.8 Low Voltage DC-DC LVDTs
Use the following wiring diagram when connecting a low-voltage DC-DC LVDT to a High-Level Input channel.
Examples of such devices include:
• Models DLB, DLE, and DLF DC-DC LVDTs