MTS FlexTest Models 200 - Manual (Page 144)

MTS FlexTest® Models 40/60/100/200 Controller Hardware
Digital Universal Conditioner Mezzanine Cards
Mezzanine Cards 144
Digital Universal Conditioner (DUC) Features
You can configure a DUC as either an AC conditioner or a DC conditioner.
General
• Software-configurable conditioner gains allows the use of a wide range
of transducers.
• Each DUC channel has its own indicator LED (located on the I/O
carrier board).
• The conditioner includes a IEEE 1451.4, Class 2 smart transducer
interface.
• A high-frequency input filter helps protect against ESD and EMI
interference.
• An analog anti-aliasing filter is provided before the A-to-D converter.
• The conditioner includes programmable digital filters.
Excitation
• In DC mode, an excitation-sense circuit helps compensate for IR line
losses by boosting the DC excitation voltage when necessary.
• Excitation under- and over-current detection is available for all
configurations. A system interlock is generated if an excitation fault is
detected.
• The AC conditioner supports multiple, software-configurable excitation
frequencies
.
DC configuration • The DC conditioner supports quarter-, half-, and full-bridge
transducers.
• The quarter-bridge DC conditioner supports the use of a customer-
supplied bridge-completion resistor that you install on the I/O carrier
board and bridge-completion circuitry on the DUC.
• The half-bridge DC conditioner uses a bridge-completion circuit
located on the conditioner.
• Software configuration allows you to apply a shunt resistor (installed
on the I/O carrier board) to the selected leg of the bridge.