SCM5B42 - 2-Wire Transmitter Interface, 100Hz Bandwidth

Main features

  • Input Ranges 4-20mA
  • Output Ranges 1-5V DC, 2-10V DC
  • Output Control Enable / Disable
  • Isolation
    • Voltage 1500Vrms
    • Type 4-way: Input, Output, Power, Excitation source
  • Common Mode Rejection 100dB
  • Normal Mode Rejection (100Hz) 120dB
  • Bandwidth 100Hz
  • Filter 6-Pole
  • Input Voltage Withstand 240Vrms
  • Gain/Offset Adjust Fixed
  • Accuracy from ±0.03%
  • Linearity ±0.005%
  • Drift ±0.1µV/°C
  • Power ±5V DC, ±5% at 180mA At Transmitter Load Of 20mA
Clear
Price request Datasheet

Each SCM5B42 2-wire transmitter interface module provides a single channel which accepts a 4 to 20mA process current input and provides a standard +1 to +5V or +2 to +10V output signal . An isolated +20V DC regulated power supply is provided to power the current transmitter. This allows a 2-wire loop powered transmitter to be directly connected to the SCM5B42 2-wire transmitter interface module without requiring an external power supply. The regulated supply will provide a nominal +20V DC at a loop current of 4mA to 20mA.

The SCM5B42 2-wire transmitter interface module will provide a 1500V isolation barrier for non-isolated 2-wire field transmitters. It can also be used when additional isolation is required between an isolated 2-wire transmitter and the input stage of the control room computer.

The voltage output on the SCM5B42 2-wire transmitter interface module is logic switch controlled, which allows these modules to share a common analog bus without the requirement of external multiplexers.

The SCM5B42 2-wire transmitter interface module is designed with a completely isolated computer side circuit which can be floated to ±50V from Power Common, pin 16. This complete isolation means that no connection is required between I/O Common and Power Common for proper operation of the output switch. If desired, the output switch can be turned on continuously by simply connecting pin 22, the Read-Enable pin, to I/O Common, pin 19.

A precision 20 ohm current conversion resistor is supplied with the SCM5B42 2-wire transmitter interface module. Sockets are provided on the SCMPB01/02/03/04/05/06/07 backpanels to allow installation of this resistor. Extra resistors are available under part number SCMXR1. All field inputs are fully protected from accidental connection of power-line voltages up to 240V AC. The module has a 3dB bandwidth of 100Hz. Signal filtering is accomplished with a six-pole filter, with two poles on the field side of the isolation barrier, and the other four on the computer side.

A wide range of backpanels, DIN rail mounting options, cables, racks, power supplies and other accessory items are available for the SCM5B42 2-wire transmitter interface module.

SCM5B42-01 - Input Range: 4-20mA Output Range: +1V to +5V

5B

SCM5B42-02 - Input Range: 4-20mA Output Range: +2V to +10V

5B

SCM5B422-Wire Transmitter Interface, 100Hz Bandwidth
SCM5B42-01Input Range: 4-20mA Output Range: +1V to +5V
SCM5B42-02Input Range: 4-20mA Output Range: +2V to +10V

SCM5BPT - Pass Thru Module SCM5BPT -
Pass Thru Module

The SCM5BPT is a pass-through module used to establish a direct connection between an input signal and the SCM5B series backplane analog bus. It has unity gain and ...

SCMPB01 - 16-channel backpanel with standoffs for mounting. SCMPB01 -
16-channel backpanel with standoffs for mounting.

The SCMPB01 16-channel backpanel can accept any of the SCM5B analog modules in any mixture. It can be mounted on the SCMXRK-002 19-inch metal rack. The SCMPB01 has ...

SCMPB02 - 16-channel backpanel with standoffs for mounting. SCMPB02 -
16-channel backpanel with standoffs for mounting.

The SCMPB02 16-channel backpanel can accept any of the SCM5B analog modules in any mixture. It can be mounted on the SCMXRK-002 19-inch metal rack. The SCMPB02 has ...

SCMPB03 - Single channel backpanel. No mounting hardware included. SCMPB03 -
Single channel backpanel. No mounting hardware included.
The SCMPB03 is single channel mounting panels for the SCM5B modules, for DIN rail mounting.
SCMPB04 - Dual channel backpanel. No mounting hardware included. SCMPB04 -
Dual channel backpanel. No mounting hardware included.
The SCMPB04 is dual channel mounting panels for the SCM5B modules
SCMPB05 - 8-channel backpanel with standoffs for mounting. SCMPB05 -
8-channel backpanel with standoffs for mounting.

The SCMPB05 backpanel can accept up to eight SCM5B analog input and/or output modules in any combination. It can be mounted on the SCMXRK-002 19-inch metal rack. A ...

SCMPB06 - 8-channel backpanel with standoffs for mounting, multiplexed SCMPB06 -
8-channel backpanel with standoffs for mounting, multiplexed

The SCMPB06 backpanel can accept up to eight SCM5B modules in any combination. It can be mounted on the SCMXRK-002 19-inch metal rack. The SCMPB06 has two analog ...

SCMPB07 - 8-channel backpanel, No mounting hardware included SCMPB07 -
8-channel backpanel, No mounting hardware included

The SCMPB07 8-channel high-density backpanel can accept any of the SCM5B analog modules in any mixture. Its overall width is 5.5 inches (139.7mm) versus 10 inches (254mm) for ...

SCMXCA004 - Interface cables SCMXCA004 -
Interface cables

System interface cable for the SCMPB01/02/05/06 backpanels. This is a 26 conductor ribbon cable with a mass terminated socket connector installed on each end. It can be ordered ...

SCMXCJC - Encapsulated Cold Junction Compensation SCMXCJC -
Encapsulated Cold Junction Compensation

The SCMXCJC is the identical circuit used on the SCMPB01/02/03/04/05/06/07 backpanels except it is packaged as a component for use in customer designed mounting boards. When interfaced to ...

SCMXEV - Analog Module Evaluation Board SCMXEV -
Analog Module Evaluation Board

The SCMXEV is a single channel board with a test socket for SCM5B module evaluation. All signal input/output, control, and power connections are connected to terminal blocks for ...

SCMXIF - Universal Interface Board SCMXIF -
Universal Interface Board

The SCMXIF is a universal interface board which converts a 26-pin ribbon cable input to 26 screw terminals for discrete wire. It can be mounted on the back ...

SCMXJP-003 - Jumper strap SCMXJP-003 -
Jumper strap

Package of 10 jumpers for connecting adjacent input/output modules on the SCMPB01 backpanel. This connection is made if it is desired to direct the output of any input ...

SCMXR1 - Current Conversion Resistor SCMXR1 -
Current Conversion Resistor

A precision 20Ω, 0.1%, 10ppm/°C resistor used with the SCM5B32 current input module or SCM5B42 two-wire transmitter interface module. Sockets are provided on the SCMPB01/02/03/04/05/06/07 and SCMXEV backpanels ...

SCMXRK-002 - 19 "metal rack for mounting SCMXRK-002 -
19 "metal rack for mounting

The SCMXRK-002 is a 19"metal rack for mounting 8BP04/08/16 rear panels and 8BXIF interface board, SCMPB01/02/05/06 et SCM7BP04/08/16

063709719c66c4e9ddd3e0d715404f0b+++++++++++++