Download detailed specifications for this product

Download PDF

0/4 to 20 mA Current Isolator

SCC301

SCC301 is a dual purpose, current-to-current converter with 3-port isolation. It provides a fully floating, isolated DC supply for energising a conventional 2 or 3-wire 4~20mA transmitter/ smart transmitter and repeats the current in another isolated circuit or accepts a 4~20mA signal from a controller/source to drive loads up to 750 ohms. A 20~35VDC power supply is required for operation. The power supply terminations are at the top of the unit to enable this model to be used either as a repeater power supply or driver. For a 2-wire smart transmitter the unit also allows bi-directional transmission of digital communication signals superimposed on the 4~20mA signal so that the transmitter can be interrogated either from the operator station or by a handheld configurator.

 

 Specification
  • Number of channels : One
  • Input and output signal
    • 0~20 mA for normal operation
    • 4~20 mA for operations with digital communication
  • Isolation (mutual, between 2700 VAC RMS power supply, input and output)
  • Power supply : 20~35 V DC
  • LED indicator : 1 red LED indicating POWER ON
  • Voltage available to 20 V minimum at 20 mA transmitter
  • Digital signal bandwidth : 100 Hz ~ 10 KHz
  • Maximum load resistance
    • Conventional transmitters/drivers :750 ohms
    • Smart transmitters : 220ohms to 650 ohms
  • Voltage drop across input <0.5V from current source (terminal 5 & 6)
  • Transfer accuracy at 25 °C ±0.1% of span (±20 micro Amps) (including non-linerarity and hysterisis)
  • Temperature effect on <1 micro Amps / °C accuracy
  • Response time 10 ms (to reach 90% of span)
  • Power requirement
    • 135mA max at 20V with a (supplying a transmitter) 20mA signal
    • 95mA max at 35 V with a 20mA signal
  • Power requirement
    • 90mA max at 20V with a (current source input) 20mA signal
    • 65mA max at 35 V with a 20mA signal
  • Common mode rejection ratio Better than 160dB
  • List of compatible devices for All HART compatible devices digital communication
Enclosure
  • Material ABS plastic
  • Dimensions 80(H) x 25(W) x 85(D) mm
  • Mounting : Snap on for 35 mm DIN rail to DIN 46277
  • Connection, single/stranded  2.5 mm², AWG 14 wires
  • Weight < 200 grams
  • Protection IP 20
Temperature, Humidity
  • Ambient, storage -40 ~ +80 °C
  • Ambient, operation -20 ~ +55 °C
  • Relative humidity 5 ~ 95%
  • 0~20 mA IN/OUT
  • HART compatible
  • 2700VAC RMS galvanic isolation between supply, input & output
  • Accuracy : ±0.1% of span (±20 micro Amps)
  • Din rail mount, 25 mm wide enclosure
  • 20~35 V DC supply

Applications

Industries

Customization

    Not Available

    Please choose from our customization options and enter under comments while inquiring about this product`

Inquiry for

required after months
×

Email Details Of 0/4 to 20 mA Current Isolator - SCC301



×