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Analog Input Channels:
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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.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Differential Channels
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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.
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Search Logic:
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"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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Maximum Output:
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This is the limit of output voltage.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Bandwidth:
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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.
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Search Logic:
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All matching products will have a value greater than or equal to the specified value.
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Accuracy:
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Accuracy depends on the signal conditioning linearity, hysteresis, temperature considerations, etc. It is represented here as percent full scale of measurement range.
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Search Logic:
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All matching products will have a value less than or equal to the specified value.
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Signal Isolator
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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.
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Search Logic:
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"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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DC Voltage Input?
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Search Logic:
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"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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AC Voltage Input?
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Search Logic:
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"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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Voltage Output?
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Variable voltage output such as 0-10V, ±5V, etc.
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Search Logic:
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"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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Current Output?
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Variable current level output such as 0-20mA, 4-20 mA current loop, etc.
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Search Logic:
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"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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Frequency Output?
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Output is a frequency or pulse signal such as AM, FM, or PWM monitoring or control.
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Search Logic:
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"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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Timer / Counter Output?
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Output is a counting or timing of measured events.
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Search Logic:
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"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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Relay Output?
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Switch type output; contacts are open or closed depending on the state of one or more of the inputs.
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Search Logic:
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"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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Resistance / Potentiometer Output?
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Output is a variable resistance such as a potentiometer.
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Search Logic:
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"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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Other Output?
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Unlisted or specialized output.
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Search Logic:
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"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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Integral Filter?
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A filter will allow certain signal frequencies to pass while attenuating others. Filters can operate on signal phase also.
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Search Logic:
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"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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Programmable Filter?
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Filter parameters such as cutoff frequencies may be interactively programmed by user.
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Search Logic:
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"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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Low Pass Cutoff Frequency:
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Nominal frequency below which input signal is passed and above which the signal is blocked.
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Search Logic:
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User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Form Factor
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Your choices are...
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Integrated Circuit (IC)
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Devices are integrated circuit (IC) chips that mount on printed circuit boards (PCBs).
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Printed Circuit Board (PCB)
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Devices are printed circuit boards (PCBs) that attach to enclosures or plug directly into computer backplanes.
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Panel / Chassis Mount
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Devices attach to a panel or bolt onto a chassis.
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Modular Bay / Slot System
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Devices stack in modular bays or slots and can be interfaced to other units.
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Rack Mount
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Devices are rack-mounted and fit inside enclosures such as a standard 19” telecommunications rack.
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DIN Rail
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Devices mount on a standard DIN rail. DIN is an acronym for Deutsches Institut für Normung (DIN), a German national organization for standardization.
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Stand Alone
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Devices are benchtop or floor-standing units with a full casing or cabinet and an integral interface.
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Other
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Other unlisted form factors.
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Search Logic:
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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
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Your choices are...
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None
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No user input or programmability; "black box" style of storage for download or processing elsewhere.
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Front Panel & Display
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Integral controls, keypad, and/or display on the panel of the unit.
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Touch Screen
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The device's visual display screen is contact sensitive to allow direct input.
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Hand-held / Remote Programmer
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Interface unit specifically meant to hold in hand while entering program parameters; may include remote programming.
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Computer Programmable
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Device is interfaced to a separate supervisory or host computer.
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Other
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Any unlisted user interface method.
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Search Logic:
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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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