Signal conditioners, transmitters, and optical isolators solve ground loop problems, isolate noise issues, convert signals to desired levels and types, and allow longer cable runs. Limit alarms take analog inputs and provide low-limit, high-limit, or other discrete outputs based on the input value.
Signal integrity is vital for accurate control of a process, and it starts with accurate measurements and quality equipment. However, even with the best equipment, signals can be degraded if the equipment or wiring are not properly installed or isolated. Signal conditioners and isolators can mitigate such issues.
Limit alarms provide discrete outputs based on set values of its analog input.
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These signal conditioners isolate analog voltage and current signals or provide bipolar/unipolar voltage conversions with isolation. Various inputs are supported including current, voltage, RTD, and thermocouple, with current, voltage, and/or relay outputs. Many units can be configured via DIP switches, or a programming module, depending on model.
Universal input conditioners/isolators accept a variety of inputs and provide current, voltage, and/or relay outputs with programmable ranges and functions all in one unit. They are configurable via a detachable programming module that displays the input signal, engineering units, output signal, and relay status.
Thermocouple and RTD transmitters accept popular sensor types and measurement ranges and provide current outputs. Universal models also accept millivolt, current and potentiometer inputs. These units are ideal for wiring and extending signals to controllers.
Optical isolators connect encoders to PLCs, servo drives, and other devices. They solve electrical noise issues, convert encoder signal types or voltage levels, provide multi-channel high-speed isolation for other sensor types, and can be used as repeaters for long cable runs.
Limit alarms accept analog inputs and provide low-limit, high-limit, or other discrete output indications based on the input value. Voltage or current input signals are compared to trip points configured via DIP switches or a programming module. Relay outputs can be used to interface with other process equipment.
6mm-wide signal conditioners are space-saving units that provide conversion of standard voltage and current signals, bipolar signals, thermocouples and RTDs, with isolation to eliminate ground loop problems. Models include single-, two-channel, and signal splitter styles and include options for an in-rail power bus.
Accessories and spare parts for signal conditioners include replacement terminal blocks, configuration software for programmable units, configuration cable (for use with software), and a detachable programming/display module for select models.