Current Loop Converters Specifications

Help with Current Loop Converters specifications:

Device Specifications

	Analog Input Channels:		This is the maximum number of analog channel inputs. The single-ended number is specified when single-ended inputs are available as twice the number of differential inputs. Differential channels use the difference between two signals as an input; common mode is filtered out. In some systems, differential inputs are combinations of two single-ended inputs. When this is the case, twice the number of differential channels are available as single-ended inputs.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Differential Channels		Differential channels have two inputs. The signal to process is the voltage (V) difference between the two inputs. For example, if one reading is 4.93 V and the other reading is 5.16 V, the meaningful value is the 0.23 V difference between the two. Often, this applies to precision measurements where the difference between two low-voltage inputs is small but critical.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
	Accuracy		Accuracy depends on the signal conditioning linearity, hysteresis, temperature considerations, etc. It is represented here as percent full scale of measurement range.
	Search Logic:		All matching products will have a value less than or equal to the specified value.
	Bandwidth		Bandwidth is the difference between the high and low limits of the frequency response, typically defined by a variation from a nominal value by a stated value such as 3 dB.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Maximum Output		This is the limit of output voltage.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Signal Isolator		Signal isolation is the separation of any direct electrical contact of a signal. This can be done in various ways, including optical isolation, capacitors, and magnetic induction.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

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Signal Inputs

	Your choices are...
	DC Voltage Input
	DC Current Input?
	AC Voltage Input?
	AC Current Input?
	Frequency Input?		Input for varying frequency, pulse, or other specialized waveform.
	Charge Input?		Charge is the output of a piezoelectric device. A charge signal typically requires filtering and amplification.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Sensor Inputs

	Your choices are...
	Accelerometer Input		The inputs are specifically for an accelerometer, such as a piezoelectric or current-fed sensor.
	Thermocouple Input		The inputs are for a thermocouple or thermocouple series.
	Thermistor Input		Inputs for thermistors and potentiometers handle variable resistance as a function of the process being measured.
	RTD Input		The inputs are designed for a resistance temperature detector (RTD).
	Strain Gauge / Bridge Input		The inputs are designed for a Wheatstone bridge, in full, half, or quarter bridge configurations. Strain gauges are sensors which commonly use Wheatstone bridges.
	LVDT / RVDT Input		The inputs are for a linear (LVDT) or rotary (RVDT) variable differential transformer.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Specialized & Other Inputs

	Your choices are...
	Encoder Input?		Inputs for an encoder signal such as binary, gray, or binary-coded decimal (BCD).
	Counter / Tachometer Input?		Typically, the inputs from counters or tachometers are one signal per cycle counts.
	Timer / Clock Input?		Inputs for any type of time signal.
	Relay / Switch Input?		Inputs for a discrete, on/off signal from an exterior device.
	Other Input?		Other unlisted or specialized inputs.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Transducers & Excitation

	Your choices are...
	Voltage Excitation Supply?		Devices have a voltage output that is meant to power or activate the sensor whose signal the device is receiving.
	Current Excitation Supply?		Devices have a current output that is meant to power or activate the sensor whose signal the device is receiving.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Form Factor

	Form Factor
	Your choices are...
	Printed Circuit Board (PCB)		Devices are printed circuit boards (PCBs) that attach to enclosures or plug directly into computer backplanes.
	Panel / Chassis Mount		Devices attach to a panel or bolt onto a chassis.
	Modular Bay / Slot System		Devices stack in modular bays or slots, and can be interfaced to other units.
	Rack Mount		Devices are rack-mounted and fit inside enclosures such as a standard 19 in. telecommunications rack.
	DIN Rail		Devices mount on a standard DIN rail. DIN is an acronym for Deutsches Institut für Normung (DIN), a German national organization for standardization.
	Stand Alone		Devices are benchtop or floor-standing units with a full casing or cabinet, and an integral interface.
	Other		Other unlisted form factors.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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User Interface

	User Interface
	Your choices are...
	None		There is no user input or programmability. Instead, there is "black box" style of storage for download or processing elsewhere.
	Front Panel and Display		There are integral controls, a keypad, and/or a display on the panel of the unit.
	Touch Screen		The device's visual display screen is contact-sensitive to allow direct input.
	Hand-held / Remote Programmer		The interface unit is designed specifically to be held in the hand while the user enters program parameters, and may include remote programming.
	Computer Programmable		The device is interfaced to a separate supervisory or host computer.
	Other		Other unlisted user interface methods.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

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Environment

	Operating Temperature		Full required range of ambient operating temperature.
	Search Logic:		User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
	Vibration Rating		Maximum vibration that the device can withstand and still meet performance specifications.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.
	Shock Rating		Maximum shock that the device can withstand and still meet performance specifications.
	Search Logic:		All matching products will have a value greater than or equal to the specified value.

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