EPRO CON021/913/040 Signal Converters

Configured for shaft displacement, axial position, eccentricity, and speed/key monitoring in turbomachinery protection systems, the Emerson CON021/913/040 (CON021 Eddy Current Signal Converter) provides direct physical/electrical execution. The hardware conditions raw proximity transducer signals across a dynamic frequency range of 0 to 20 kHz (-3 dB) with a rise time of under 15 us.

Hardware Specifications

4-20 mA HART Loop Protocol and DCS Connectivity

The CON021/913/040 incorporates high-speed active conversion circuits engineered to interface directly with 4-20 mA HART loop protocol architectures and DCS networks, including Emerson DeltaV and Ovation platforms. Integrated channel-to-channel isolation prevents ground loop currents and cross-talk interference between adjacent proximity transducer input channels. Active signal logic conditions high-frequency eddy-current probe voltage changes into configurable analog outputs while maintaining a linearity error of <= 2.0%. Internal thermal drift compensation guarantees signal integrity across the full operating range from -30 deg C to +100 deg C.

Frequently Asked Questions

Q: How is the transducer input connected to the CON021/913/040 signal converter?

A: Transducer input wiring attaches via a self-locking LEMO plug interface, while supply voltage and output signals terminate through screw terminal connections.

Q: Which power supply input options determine the analog output voltage range?

A: A supply input of -23 VDC to -32 VDC yields an output span of -4 VDC to -20 VDC, whereas a supply input of -21 VDC to -32 VDC produces an output span of -2 VDC to -18 VDC.

Field Installation Guidelines

1. Panel-mount the aluminum alloy LMgSi 0.5 F22 housing using the four M5x20 screws into an IP-rated enclosure.
2. Align and press the transducer cable connector into the self-locking LEMO socket until the locking mechanism engages.
3. Route transducer and output wiring in dedicated, grounded metallic conduits separate from high-voltage AC conductors.
4. Terminate signal cable shielding exclusively at the single-point cabinet instrument earth ground bus bar.
5. Verify power supply polarity and negative DC input voltage levels before applying power to the terminal blocks.