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Rishabh-Passive Signal Isolator

RISH Ducer TI 816 (Single Channel Passive isolator)

The DC signal isolator serves to electrically isolate the analog DC signal in the range from 0(4)-20mA which depending on version is then converted to a current signal 0(4)-20mA or voltage signal 0(2)-10V It does not require a separate power supply, but derives the little auxiliary power it needs from the DC signal..


  • Electrically isolated analog DC signals 0-20mA- prevents the transfer of interference voltages and currents. Solves grounding problems in meshed signal networks.
  • No separate power supply needed/saves wiring costs and is easy to install in existing plants.
  • Snaps onto a DIN rail or screws onto a wall or panel – easily adaptable to the mounting facility at the place of installation
  • Insulation Level 3.7kV
  • Small and Compact: makes best use of available space.
  • Input: 0-20ma, Output: 0-20ma or 0-10vdc
  • Number of Input/Outputs: 1 x Input, 1 x Output

Block Diagram:

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Line Seiki-Communication Preset Counter

The G20 Series:  is a DIN 72 x 144 preset counter + tachometer with communication capability.  This counter is fully programmable and can handle complex manufacturing processes including multi-step operations such as batching, cut to length, packaging,  etc.  Up to 4 preset levels, batch output, pre-warn output combinations is possible.  The G20 series has a dual line 6 digits LED display.  The upper line display is a RED LED, 14.22 x 7.8mm figure size that displays Count values (preset, batch, total) and Tachometer.  The lower line display is a GREEN LED, 10.0 x 5.5mm figure size that displays the Preset values.

The G20 series is powered by AC100~240V and an external power supply of DC12V is available for sensors.  This counter can accept Contact, Open Collector or DC Voltage input signals and count modes includes Add, Subtract, Add/Subtract and Quadrature (bidirectional) and count speed is selectable from 30Hz ~ 8kHZ.  The unit has a built-in output relay which actuates when preset values are reached.  NPN Open Collector output is also available.  Operation modes and Output modes are also programmable to suit any complex process.  Reset can be done via the front reset button or remotely.

The front panel has a 10-key button for easy programming and operation and it is dust-proof and splash-proof.  Other programmable features are Pre-scale, Decimal Point Position, Free Write and Key Protect.  The G20 Series also has a built in EEPROM memory for count value and settings retention even during sudden power loss.  This counter uses a RS484 Serial interface for data communication.  Wiring connections are secured thru the terminal screw connection.

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