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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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Digital I/O Channels:
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Digital or discrete channels are used for low-level on-off signals used in applications such as communication, user interface, or control.
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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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Sampling Frequency:
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Frequency of analog signal sampling and conversion to a digital value.
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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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Resolution:
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Resolution refers to the degree of fineness of the digital word representing the analog value. A ten-bit number contains 210, or 1024, increments. A 0-10V signal could therefore be resolved into approximately 0.01V increments. A 12-bit representation would be in 212 (4096) increments, or divisions of 0.0024V for the same signal. Each additional bit doubles the resolution, and one bit is required for the polarity (sign) of a number.
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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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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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Application
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Your choices are...
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General Lab & Industrial
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General laboratory and industrial data acquisition systems. Special hardening against weather, shock, extreme heat, and other unusual conditions not necessary.
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Environmental
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Designed for use in environmental applications such as groundwater monitoring or pollution measurement.
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Vehicular
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Applications for vehicular motion, including provisions for factors such as high speed, shock, etc.
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Marine
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Designed for use in water or salt water applications.
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Aerospace / Military
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Designed for use in aviation, aerospace, or other military or defense applications, including associated technical or military standards.
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Seismic / Geotechnical
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Designed for use in seismic applications such as earthquake or volcano research, or industries such as mining.
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Weather / Meteorology
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Designed to handle weather or atmospheric data; may include weatherproofing.
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Medical / Biomedical
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Designed for use in medical, biomedical, pharmaceutical, or surgical applications.
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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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Your choices are...
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DC Voltage
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DC Current
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AC Voltage
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AC Current
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Frequency
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Input for varying frequency, pulse, or other specialized waveform.
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Charge
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Charge is the output of a piezoelectric device. A charge signal typically requires filtering and amplification.
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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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Your choices are...
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Accelerometer
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Input specifically for an accelerometer, such as a piezoelectric or current-fed sensor.
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Thermocouple
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Input for a thermocouple or thermocouple series.
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Thermistor
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Input for thermistors and potentiometers handle variable resistance as a function of the process being measured.
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RTD
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Input designed for a resistance temperature detector.
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Strain Gauge / Bridge
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Input designed for a Wheatstone bridge, in full, half, or quarter bridge configurations. Strain gauges are sensors which commonly utilize Wheatstone bridges.
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LVDT / RVDT
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Input for a Linear (LVDT) or Rotary (RVDT) Variable Differential Transformer.
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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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Your choices are...
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Encoder
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Input for an encoder signal such as binary, gray, or BCD.
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Counter / Tachometer
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Input from counters or tachometers are typically one signal per cycle counts.
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Timer / Clock
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Input for any type of time signal.
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Relay / Switch
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Input for a discrete, on/off signal from an exterior device.
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Other
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Unlisted or specialized input.
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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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Voltage Excitation Supply?
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Device has a voltage output that is meant to power or activate the sensor whose signal the device is receiving.
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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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Current Excitation Supply?
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Device has a current output that is meant to power or activate the sensor whose signal the device is receiving.
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| |
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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Your choices are...
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Voltage Output
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Variable voltage output such as 0-10V, ±5V, etc.
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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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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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Timer / Counter Output
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Output is a counting or timing of measured events.
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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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Resistance / Potentiometer Output
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Output is a variable resistance such as a potentiometer.
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Other
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Unlisted or specialized output.
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| |
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
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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:
|
|
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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Application Software Included?
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Included compatible software for control or for monitoring data acquisition or signal conditioning from a supervisory or host computer.
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| |
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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RAM / On-board Memory:
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Random access memory; capacity of memory for control software or function / program loading.
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| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
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Data Storage:
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Capacity for data storage, typically with a hard drive.
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| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
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Connection to Host
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Your choices are...
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Direct Backplane Interface
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The circuit board installs directly into a computer motherboard or backplane.
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RS232
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Interface between data terminal equipment and data communications equipment employing serial binary data interchange.
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RS422
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RS422 is a balanced serial interface for the transmission of digital data. It was designed for greater distances and higher Baud rates than RS232.
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RS485
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RS485 is a balanced serial interface for the transmission of digital data. The advantage of a balanced signal is the greater immunity to noise. The difference between RS422 and RS485 is that RS485 can be transformed into a multi-point application.
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USB
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Universal Serial Bus. The standard serial bus for low-to-medium speed peripheral device connections to Personal Computers, including keyboards, mice, modems, printers, joysticks, audio functions, monitor controls, etc.
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IEEE 1394 (Firewire®)
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A companion to USB, IEEE 1394 is a very high-speed serial bus (400 Megabit - 1 Gigabit). It was designed to replace all external high-speed peripheral connections to personal computers, including hard disks, CD-ROM's, DVD's, graphics cards, high-speed scanners, direct video, monitors, etc.
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GPIB (IEEE 488, HPIB)
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GPIB (General Purpose Interface Bus) is designed to connect computers, peripherals and laboratory instruments so that data and control information can pass between them. It is also known as IEEE 488 or HPIB, and is electrically equivalent to IEC 625 bus.
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SCSI
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SCSI (Small Computer System Interface) is a parallel interface standard used by Apple Macintosh computers, PCs, and many UNIX systems for attaching peripheral devices to computers.
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TTL
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Transistor-transistor logic, a common type of digital circuit in which the output is derived from two transistors. More commonly, however, TTL is used to designate any type of digital input or device.
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Parallel Interface
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A channel capable of transferring more than one bit simultaneously; parallel communication protocols include GPIB / IEEE-488 / HPIB Protocol.
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Ethernet
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A local-area network (LAN) protocol developed by Xerox Corporation in cooperation with DEC and Intel in 1976. Ethernet uses a bus or star topology and supports data transfer rates of 10 Mbps. The Ethernet specification served as the basis for the IEEE 802.3 standard, which specifies the physical and lower software layers. Ethernet uses the CSMA/CD access method to handle simultaneous demands. It is one of the most widely implemented LAN standards.
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Modem
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Modulator-demodulator. A modem is a device or program that enables a computer to transmit data over telephone lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves. A modem converts between these two forms.
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Radio / Telemetry
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Communication from data acquisition device to host or storage unit via radio transmission.
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Other
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Unlisted, specialized, or proprietary communication configuration.
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| |
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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Transmission Rate:
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Transmission speed in bits per second.
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| |
Search Logic:
|
|
All matching products will have a value greater than or equal to the specified value.
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Web Enabled?
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Device contains hardware and software protocols such as Hypertext Transfer Protocol (http) or Web Access Protocol (WAP) for being addressable to, or a node of, the World Wide Web for remote monitoring or communication.
|
| |
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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Networkable System?
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Device is designed to communicate with or be a node of a digital network.
|
| |
Search Logic:
|
|
"Required" and "Must Not Have" criteria limit returned
matches as specified. Products with optional attributes
will be returned for either choice.
|
|
| |
Network Options:
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Your choices are...
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Ethernet
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A standard method of connecting computers to a local area network (LAN) using coaxial cable.
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CANbus
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CANbus is a high-speed serial data network engineered to exist in harsh electrical environments.
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DeviceNet
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DeviceNet is a network designed to connect industrial devices such as limit switches, photoelectric cells, valve manifolds, motor starters, drives, and operator displays to PLCs and PCs. The network eliminates hard wiring while providing device-level diagnostics.
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SDS
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Smart Distributed System (SDS) is an advanced bus system for intelligent sensors and actuators using CAN-based technology.
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Foundation Fieldbus
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A bi-directional communications protocol used for communications among field instrumentation and control systems.
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Profibus
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PROFIBUS is a vendor-independent, open field bus standard used in a wide variety of manufacturing and process automation applications.
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SERCOS
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(SErial Real-time COmmunications System) is an open controller-to-intelligent digital drive interface specification, designed for high-speed serial communication of standardized closed-loop data in real-time over a noise-immune, fiber-optic cable.
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IEEE P1451
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A standard designed to produce network-capable, network-independent smart sensors. With the standard, all transducers are identical, regardless of the target network or fieldbus.
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Beckhoff I/O
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A communications system that couples open fieldbus protocols to Beckhoff's Bus Terminal I/O. This allows connectivity to a large variety of devices on the Bus Terminal (K-bus).
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| |
IEEE 1394 (Firewire®)
|
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The IEEE 1394 standard is a scalable, flexible, digital interface designed by Apple Computer, Inc., to integrate the worlds of consumer electronics and personal computers. The IEEE 1394 standard defines both a back plane physical layer and a point-to-point cable-connected virtual bus implementations. FireWire, Apple's implementation of IEEE 1394, is a fast peripheral standard for use with multimedia peripherals such as video camcorders and other high-speed devices like the latest hard disk drives and printers.
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Other
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Any unlisted network system; may include proprietary networks.
|
| |
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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Operating Temperature:
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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.
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Vibration Rating:
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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.
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Shock Rating:
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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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