Signal Conditioning - Data Acquistion - Data CommunicationsIf you want high common mode rejection ratios and excellent normal mode ratios also with 1500VAC RMS Galvanic isolation, these are the products.(applies to most conditioning and data acquistion products)
MasTec has been distributing Dataforth since 1996 and has hundreds of I/O points running with Dataforth moodules.
We break with our simple page convention in this page and below you will find a short discussion on each product type.
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Each Instrument-ClassTM DSCA module provides a single channel of isolated analog input or output. Various input modules accept analog voltage or current signals from all types of field sensors and sources and filter, isolate, amplify, linearize, and convert these input signals to high-level analog outputs suitable for use in data acquisition, test and measurement, and control systems. Output modules accept high-level analog voltage signals from a system, then buffer, isolate, filter, and amplify before providing a current or voltage output to a field device.
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Dataforth's DSCP and SCTP series of products are a complete family of loop and universal AC/DC powered models of transmitters in DIN and head-mount packages. The input type, measurement range and many other parameters are software programmable using only a PC, interface cables, and easy-to-use configuration software. They accept a wide range of voltage, thermocouple, or RTD signals then filter, isolate, amplify, linearize, and convert these input signals to high level analog outputs suitable for use in data acquisition, test and measurement, and control systems. They protect valuable measurement and control signals as well as connected equipment from the dangerous and degrading effects of noise, transient power surges, internal ground loops, and other hazards present in industrial environments. |
Dataforth's DSCL series of products is a complete family of loop and universal AC/DC powered models of isolators in component, DIN and panel-mount packages. They include multi-channel, fixed-gain, and hardware programmable models. Depending on the model, they accept a wide range of voltage or current signals then filter, isolate, amplify, and convert these input signals to high level analog outputs suitable for use in data acquisition, test and measurement, and control systems. They protect valuable measurement and control signals as well as connected equipment from the dangerous and degrading effects of noise, transient power surges, internal ground loops, and other hazards present in industrial environments. |
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Dataforth's DSCT series of loop powered two-wire transmitters consists of seven family groups with a total of 48 transmitter models that interface to a wide variety of voltage, current, temperature and position measuring devices. The DSCT is the latest introduction of Instrument Classô products available from Dataforth, which provide superior specifications such as ±0.03% accuracy, five poles of filtering, 1500Vrms continuous isolation, low output noise, and much more. The DSCT two-wire transmitter conditions and sends analog signals from sensors located in the ìfieldî to monitoring and control equipment, usually computers, located thousands of feet away in central control areas. The DSCT accepts a wide range of inputs, including millivolt, volt, milliamp, thermocouple, RTD, potentiometer, and slide wire. It operates on power from a 2-wire signal loop and modulates the supply current to represent the input signal within a 4 to 20-milliamp range. Two-wire transmission loops are very economical methods for connecting sensors to distant control rooms. Since the DSCT operates from the signal loop current, no additional, expensive power and wiring are required. Only low cost, twisted pair wiring is needed. |
 SCM5B Series Isolated Analog Signal Conditioning Products Each SCM5B module provides a single channel of isolated analog input or output. Input modules interface to all types of external sensors. The modules filter, isolate, amplify, and convert the input signal to a high-level analog voltage output. The output modules accept a high-level analog voltage signal from a host system, then buffer, isolate, and amplify before providing a process current or voltage output to field devices. Over 250 different SCM5B modules are available encompassing a wide selection of isolated analog input and output functions. Analog inputs include voltage and current in narrow and wide bandwidths, Thermocouple, RTD, Accelerometer, Potentiometer, Strain Gage, Frequency and 2-Wire Transmitter. Custom I/O ranges are also available. All modules are CSA certified and FM approved for safe operation in Class I, Division 2, Groups A, B, C, and D hazardous environments. Accessories include addressable and non-addressable single, dual, 8 and 16 channel backpanels which include on-board temperature sensors and cold junction thermocouple compensation; power supplies, mounting racks, interface cables, and evaluation boards. |
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SCM9B-1000/2000/5000/D100 SENSOR-TO-COMPUTER MODULES: These isolated modules provide complete sensor/RS-232C or /RS-485 interfaces with 15-bit measurement resolution. They accept a variety of voltage, current, thermocouple, RTD/thermistor, strain gage, timer/frequency, and multichannel digital inputs/outputs. ì2000î Series modules include additional programmable features such as ASCII output scaling to desired engineering units and linearization using straight-line segment approximation. ì5000î Series modules provide four analog input channels. D100 Series modules are DIN rail mountable. SCM9B-3000/4000
COMPUTER -TO- ANALOG OUTPUT MODULES: SCM9B-A1000/2000/D192 CONVERTERS AND REPEATERS: These products convert RS-232C communications signal levels to the correct RS-485 signal requirements, and may also be configured as repeaters to extend communications bus lengths. They are optically isolated, require no external control signals, and are completely transparent to host software. |
SCMD miniature
digital I/O modules are solid-state devices which send "ON"
and "OFF" electrical signals to and from a computer.
The input modules, depending on the type selected, convert AC
or DC voltages to DC logic signals and send them to the computer
system. Output modules work in the opposite direction, switching
either AC or DC circuits on or off in response to logic-level
voltage commands from the computer. SCMD modules are available
in "miniature" versions of four basic types: AC input,
DC input, AC output, and DC output. SCMD-MOAC and -MODC are miniature output modules accepting 5VDC, 15VDC, or 24VDC inputs and providing several different output ranges, including 120VAC, 240VAC, 5-48VDC, 5-90VDC, and 5-150VDC. Fast switching, and other special options are also available. SCMD-MIAC and -MIDC miniature input modules and SCMD-MOAC and -MODC miniature output modules are functional equivalents of full-sized modules but are 33% thinner and 20% shorter for increased density |
The SCMVAS (Signal
Conditioning Modular Voltage Attenuator System) is an analog
signal conditioning system designed to safely monitor and accurately
measure voltage potentials up to 460VAC (1300V peak-to-peak).
These highlevel voltages are typically found in industrial applications
such as induction heaters or electric-motor drive controllers.
The system reduces the input signal to a level suitable for interface
to data acquisition systems, while at the same time providing
various filter characteristics and 1500Vrms isolation. |
| more on SCMVAS Attentuators For signals comprised of harmonics or noncoherent content, the SCM5B33 True RMS Input module is recommended. Use of this module provides a DC output that is directly related to input signal power, or the RMS (Root Mean Square) value, allowing true RMS representation of input signals ranging from pulses to complex nonperiodic waveforms. The attenuator and signal conditioning modules have excellent stability over time and do not require recalibration.Overall system accuracy is ±0.06%. Input signal connections to the SCMVAS-Mnnn attenuator module are made using a pluggable terminal block for ease of system assembly and reconfiguration. For safety purposes, the terminal block has a cover over the screws and there are no other exposed high-voltage points on the SCMVAS-Mnnn series modules, SCM5B30-07 or SCM5B40-07 module, or the mounting backpanel. The SCMVAS system has two specially designed backpanels for mounting the attenuator and signal conditioning modules. The SCMVAS-PB8 high density, 8-channel backpanel can be panel mounted or DIN rail mounted and provides the conditioned output signal on screw terminal blocks. Jumpers are provided on each channel to optionally connect or isolate each module's I/O Common from other channel's I/O Common and/or Power Common. The SCMVAS-PB16 has 16 channels of analog I/O simultaneously available to high-speed data acquisition (ADC) boards through a 26-conductor ribbon cable. Refer to the SCMPB01 Data Sheet and Application Note AN502 in this catalog for recommended ground connections and host system interfaces. Both the SCMVAS-PB8 and SCMVAS-PB16 backpanels can be mounted on the SCMXRK-002 19-inch metal rack |
IsoLynz is a fast, intelligent,
fully isolated data acquisition system providing superior accuracy
and isolation for a wide range of rugged industrial applications.
All I/O is channel-to-channel isolated. The flexible, modular
design combines a 12-channel I/O Controller module and optional
8- or 16- channel expansion backplanes, which can be either panel
or DIN rail mounted |
Analog output modules are available
that provide a wide selection of current or voltage output ranges.
Industry standard miniature digital I/O modules are used for
digital AC/DC input and output requirements. The user can mix
and match any I/O module type on a per-channel basis thus reducing
wasted I/O channels and saving costs. ±0.03% Accuracy
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