Murata Electronics North America, Inc.
Smyrna, GA 30080
Dec 01, 2008 Designed for use with multi-band mobile phones, CEG23 series compact isolator includes LGA terminals which contribute to mounting space reduction. It utilizes two-port circuit technology, integrated circuit board, and electrode construction that results in reduction of characteristics such as dispersion, insertion loss, and variation within bandwidth.

Weidmuller, Inc.
Richmond, VA 23236
Nov 07, 2008 Offering savings on both I/O wiring and panel space with 12.5 mm width, ITXPlus measures, filters, and isolates different input parameters and converts them into 4-20 mA output. It can be programmed to suit full range of common analog signals and sensor types. Including selectable upscale or downscale sensor-break response, unit features built-in functionality for applications requiring temperature measurements and user-programmable characteristic table containing up to 101 measurement values.

Calex Mfg. Co., Inc.
Concord, CA 94520
Oct 09, 2008 Designed for multiple load cell systems, Model 4800 can be powered from 115 Vac, 230 Vac, or 11-30 Vdc. Unit has built-in excitation supply capable of delivering up to 120 mA at 10 V, enough current to drive four 350 W load cells. Input is isolated from output and both are isolated from supply voltage, eliminating unwanted ground loop problems. Full scale live load signals as low as 5 mV can be amplified to 20 mA or 10 V with overall accuracy of ±0.1%.

Calex Mfg. Co., Inc.
Concord, CA 94520
Sep 16, 2008 Designed for complete signal isolation, 8900 Series includes 16 dc powered signal conditioners to offer 8 inputs, including 0-50 and 0-100 mV, 0-5, 0-10, and 0-100 V, and 4-20, 0-20, and 0-50 mA, which can be combined with choice of 2 outputs. It employs 3-way signal isolation topology, where input is isolated from output and both are isolated from supply voltage. UL 508/1604 compliant series comes in 4.3 x 0.89 x 2.9 in. plastic case with built in DIN Rail mounting foot.

R. Stahl, Inc
Houston, TX 77054
Sep 03, 2008 Complementing ISpac Isolator System, Type 9170 Switching Repeater and Type 9175 Digital Output modules provide safety while transferring intrinsically safe binary signals. Available in 1- or 2-channel versions, Model 9170/x0-14-12 emulates Namur signal at control system output, while Model 9175/10-1x-12 detects short circuits and wire breaks in field. Units ensure consistent error monitoring of every channel from field to control level despite isolator in between.

Absolute Process Instruments Inc.
Libertyville, IL 60048
Sep 02, 2008 Offering full 3-way (power/input/output) isolation, API 4300 DIN PLC solves isolation and ground loop problems when used with PLCs that have single-ended, 4-20 mA inputs. It can be selectively wired for sinking or sourcing I/O, allowing use with either passive or powered 4-20 mA signal sources. Features include input/output LoopTracker® LEDs and functional test pushbutton that lets users test output independent of input signal.

Analog Devices, Inc.
Norwood, MA 02062-9106
Aug 05, 2008 AEC-Q100-qualified for -40 to +125°C operation, ADuM120xW 2-channel, ADuM130xW 3-channel, and ADuM140xW 4-channel digital isolators are designed for motor drives and battery management systems. They provide multiple isolation channels in various configurations and data rates up to 25 Mbps. Based on iCoupler® chip-scale micro-transformer technology, units include digital interface and CMOS-based parts that operate with supply voltage on either side from 3.0-5.5 V.

Analog Devices, Inc.
Norwood, MA 02062-9106
Aug 04, 2008 Housed in 10 x 10 mm surface mount package, ADuM540x Series integrates iCoupler® digital isolation technology and isoPower(TM) DC-DC converter, which provides up to 500 mW of regulated, isolated power and can operate at 5.0 or 3.3 V. Based on chipscale transformers, iCoupler digital isolators condition and drive data across transformers, while isoPower converter employs switches, rectifiers, and regulators to generate power that is isolated to same degree as data channels.

Wilcoxon Research, Inc.
Germantown, MD 20876
Jul 23, 2008 Measuring 1 in. across flats with 0.82 mounting pad, Models SF21 and SF22 accommodate up to medium diameter accelerometers and small diameter side-exit accelerometers. Models SF23 and SF24 are both 1 1/8 in. across flats with 0.94 in. mounting pad that can accommodate large diameter top-exit sensors. All have ¼-28 integral stud on accelerometer side, and are used to prevent voltage spikes from reaching sensor by electrically isolating it from case of machine.

Omega Engineering, Inc.
Stamford, CT 06907
Jul 16, 2008 Suited for chemical, petrochemical, water, power, energy, and HVAC industries, Passive Loop Powered Isolator Model DR910 is used to provide electrical isolation between control electronics and process I/O. It obtains power from input signal and does not need any auxiliary power. CE compliant unit is DIN Rail mountable in accordance with EN 50 022.

Texas Instruments, Inc., Semiconductors
Dallas, TX 75243
Jul 31, 2007 Suited for high-voltage, noisy applications, dual-channel ISO7220 and ISO7221 utilize capacitive technology to provide galvanic isolation up to 4,000 V and immunity from external magnetic fields. Devices also offer immunity against data corruption due to voltage transients up to 24 kV/µs. To faciliate PCB layout, ISO7220 has 2 channels in same direction and ISO7221 has 2 channels in opposite directions. Both provide 3 speed options of 1, 25, and 150 Mbps.

Pepperl+Fuchs
Twinsburg, OH 44087
Jun 25, 2007 HiC family of Intrinsic Safety Isolators provide single channel of isolated power and ultra-thin housing for reliable industrial signal transmission and system availability. Motherboard-mounted HiC modules feature SIL 2/3 rating and 0.8 W power dissipation that keeps cabinets cool. Units can be fastened onto 8 or 16 slot termination boards without need for tools or wiring, and can be expanded with HART communication board and fault indication board.

Absolute Process Instruments Inc.
Libertyville, IL 60048
Dec 26, 2006 Offering 2 channels of signal isolation and retransmission, DuoPak(TM) Signal Conditioners can be custom-configured to accept any 2 process signal inputs including DC voltage or current, AC voltage or current, frequency, potentiometer, or RTD temperature. Two optically isolated output channels can be configured for standard or custom DC voltage or current signals. Units include I/O LoopTracker® LEDs and functional test pushbutton for testing output independent of input signal.

Acromag, Inc.
Wixom, MI 48393 7037
Sep 07, 2004 AC/DC-powered 630T Series isolators and signal splitters feature internal excitation supply to drive up to two 2-wire transmitters or other input loop devices. Multi-channel isolators provide space-efficient solution to eliminate ground loops, filter signal noise, and block high voltage surges. Measuring 1 in. wide, single/dual-channel isolators receive 4–20 mA inputs and provide fully isolated 4–20 mA output signals.

Absolute Process Instruments Inc.
Libertyville, IL 60048
Jul 17, 2003 IsoSplitterâ„¢ 4393 dc/dc transmitter accepts one dc voltage or current input and provides 2 optically isolated dc voltage or current outputs. Input and output ranges can be independently configured to requirements. Unit includes LoopTracker® LEDs for input/output monitoring and functional-test button for testing output, independent of input signal. It is suitable for systems with multiple devices on same process loop, including PLCs, DCS, BAS, panel meters, and recorders.

JH Technology, Inc.
Sarasota, FL 34233 2432
Feb 07, 2003 Model FDT5000 provides on-site display, isolation, and conversion of 4–20 mA loops and other process signals. Unit features 1,000 V isolation and 24 V output compliance, making is suitable for solving ground problems, increasing loop drive, or splitting signals between 2 isolated loops. Housed in NEMA-4x splash-proof, corrosion-resistant enclosure, conformal-coated circuit boards provide protection for use outdoors or in remote, damp, and dirty process areas.

ICS Electronics Corp.
Milpitas, CA 95035
Oct 30, 2002 Model 4860A isolates instruments from bus controller and does not generate false replies to 488.2 FindListener Protocol used by LabViewâ„¢ and VEEâ„¢. Use of optical isolators and separate power supplies achieve 2,000 Vdc isolation between main bus and isolated bus. Optical isolators also provide 5,000 V/µsec noise and 50 V common mode isolation between buses. Smart logic recognizes which bus is connected to bus controller-in-charge and active talker.

Wilkerson Instrument Co., Inc.
Lakeland, FL 33811
Sep 26, 2002 Model DR4300 isolated signal conditioner can be supplied with inputs from ±50 mV to ±256 Vdc or ±0/1 mA to ±200 mA. Outputs can be supplied for 0/1 V, 1/5 V, 0/5 V, -5/5 V, 0/10 V, -10/10 V, 0/1 mA, 0/20 mA, or 4/20 mA. Unit is powered by 21 to 28 Vdc and provides 3-way isolation rated at 1500 Vac, 50/60 Hz. It has plug-in screw terminal blocks, and ZERO and SPAN controls on front panel. Isolator can measure voltage or current signals with high common mode levels present.

WAGO Corporation
Germantown, WI 53022
Nov 28, 2001 786 Series transducers can convert 0-10 V or 4-20 mA signals into isolated 0-10 V, 0-20 mA, or 4-20 mA signal with isolation rating of 4kV. It can be plugged directly onto terminal block assembly using base receptacle blocks that are 15, 20, or 25 mm wide. Modules are protected against mismating and can be replaced in single operation during maintenance without affecting wiring. Touchproof test contacts can also be used.