Multi-Channel, Two-Wire Isolators
In stock
Custom manufacturer 7 yrs CN
About Product
Models get power from the 4-20mA output or input loop (sinks or sources current). Typical uses are as a current repeater or to drive resistive loads651T and 250T models are ideal for applications that require an isolator with a power supply in series with the output signal. Power is obtained from the output loop. The isolator must control current draw from the power supply in the output loop which is the 4-20mA signal. Since output and power share the same two wires, this type of isolator can be placed anywhere between the field sensing device and the PLC/DCS or monitoring device. Usually, the isolator is located close to the field device. Since both the input and output signal are 4-20mA, location of the device is not critical.670T and 270i models are useful when adding and isolating a monitoring instrument to an existing current loop. When adding a field device such as a recorder or display, no additional power source is required for the added loop or for the isolator. The isolator’s output is powered by the input loop power and drives passive loads only.
| Item # | Item Name | Response Time | Diagnostics | Ambient Operating Temperature | Isolation |
|---|---|---|---|---|---|
| 651T, 652T, 653T | 651T, 652T, 653T Multi-Channel, Two-Wire Isolators | For a step input, the output reaches 98% of output span in 15 Millisiemen (mS), typical. | Light Emitting Diode (LED) power indicator: Off for output open loop detection, power, or load compliance problem. Field test points: An internal 10 ohm sense resistor provides test points for monitoring the output signal current during field main | -25 to 70 ºC | Inputs, outputs, and individual channels are isolated from each other for common-mode voltages up to 250 Volt (V) AC, or 354 Volt (V) DC off ground, on a continuous basis (will withstand 1500 Volt (V) AC dielectric strength test for one minute without bre |
| 671T, 672T, 674T | 671T, 672T, 674T Multi-Channel, Two-Wire Isolators | For a step input, the output reaches 98% of output span in less than 300 Millisiemen (mS), typical, into 250 ohms. | -25 to 70 ºC | Inputs, outputs, and individual channels are isolated from each other for common-mode voltages up to 250 Volt (V) AC, or 354 Volt (V) DC off ground, on a continuous basis (will withstand 1500 Volt (V) AC dielectric strength test for one minute without bre |
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Website:https://www.acromag.com/
Company Name:Acromag, Inc.
Location:Wixom, MI 48393
Description:Manufacturer of a wide variety of I/O devices for manufacturing, military, scientific, public utility, and transportation applications. For process instrumentation, the signal conditioning line features transmitters, isolators, alarms, and computation modules. If networked I/O is required, analog and discrete I/O modules for ethernet, modbus, and profibus are offered. For real-time control systems, a full line of high-performance analog, digital I/O and serial I/O bus boards for VMEbus, PCI, and CompactPCI® computer systems including AcroPack®, IndustryPack®, XMC, and PMC mezzanine modules are provided. Rugged embedded computers and COM Express for deployable options are also available.
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