8B45 - Frequency Input Modules

Main features

  • Accepts Frequency Input Signals 0 to 100kHz
  • TTL or Zero-Crossing Signal Inputs
  • Isolation 1500Vrms
  • Input Voltage Withstand 240Vrms
  • Common Mode Rejection 100dB
  • Normal Mode Rejection 100dB per decade above 1KHz
  • Accuracy ±0.10%
  • Linearity ±0.025%
  • Power ±5V DC ±5%, 30mA

 

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8B modules are an optimal solution for monitoring real-world process signals and providing high-level signals to a data acquisition system. Each 8B45 frequency input module isolates and conditions a frequency input signal and provides an analog voltage output.

The frequency input signal can be either a TTL level or zero crossing with as little as ±100mV amplitude. Input circuitry for each signal type has built-in hysteresis to prevent spurious noise from corrupting the module output. TTL signals are applied to the + and – terminals while zero crossing signals are applied to the +EXC and – terminals. Reference the block diagram below.

A 5V excitation is available for use with magnetic pick-up or contact closure type sensors. The excitation is available on the –EXC terminal with return on the – terminal.

A special input circuit on the 8B45 frequency input module provides protection against accidental connection of power-line voltages up to 240V AC. Clamp circuits on the I/O and power terminals protect against harmful transients.

Isolation is provided by optical coupling to suppress transmission of common mode spikes or surges. The 8B45 frequency input module is powered from +5V DC, ±5%.

The 8B45 frequency input module is designed for installation in Class I, Division 2 hazardous locations and have a high level of immunity to environmental noise.

A wide range of backpanels, DIN rail mounting options, cables, racks, power supplies and other accessory items are available for the 8B45 frequency input module.

8B45-01 - Input Range: 0-500Hz Output Range: 0-5V

8B

8B45-02 - Input Range: 0-1KHz Output Range: 0-5V

8B

8B45-03 - Input Range: 0-2.5KHz Output Range: 0-5V

8B

8B45-04 - Input Range: 5KHz Output Range: 0-5V

8B

8B45-05 - Input Range: 0-10KHz Output Range: 0-5V

8B

8B45-06 - Input Range: 0-25KHz Output Range: 0-5V

8B

8B45-07 - Input Range: 0-50KHz Output Range: 0-5V

8B

8B45-08 - Input Range: 0-100KHz Output Range: 0-5V

8B

8B45Frequency Input Modules
8B45-01Input Range: 0-500Hz Output Range: 0-5V
8B45-02Input Range: 0-1KHz Output Range: 0-5V
8B45-03Input Range: 0-2.5KHz Output Range: 0-5V
8B45-04Input Range: 5KHz Output Range: 0-5V
8B45-05Input Range: 0-10KHz Output Range: 0-5V
8B45-06Input Range: 0-25KHz Output Range: 0-5V
8B45-07Input Range: 0-50KHz Output Range: 0-5V
8B45-08Input Range: 0-100KHz Output Range: 0-5V

8BP01 - Single Channel DIN Rail Mount Carrier 8BP01 -
Single Channel DIN Rail Mount Carrier

The 8BP01 provides simple mounting and I/O connections for any of the 8B signal conditioners. 8BP01-205 and 8BP01-305 models accept 5V power and provide it to the module. ...

8BP02 - Standard 2-channel backpanel with standoffs for mounting. 8BP02 -
Standard 2-channel backpanel with standoffs for mounting.

The 8BP02 backpanels can accept any of the 8B analog I/O modules in any mixture and can be mounted on the SCMXRK-002 19-inch metal rack. Analog I/O signal ...

8BP04 - Standard 4-channel backpanel with standoffs for mounting. 8BP04 -
Standard 4-channel backpanel with standoffs for mounting.

The 8BP04 backpanels can accept any of the 8B analog I/O modules in any mixture and can be mounted on the SCMXRK-002 19-inch metal rack. Analog I/O signal ...

8BP08 - Standard 8-channel backpanel with standoffs for mounting. 8BP08 -
Standard 8-channel backpanel with standoffs for mounting.

The 8BP08 backpanels can accept any of the 8B analog I/O modules in any mixture and can be mounted on the SCMXRK-002 19-inch metal rack. Analog I/O signal ...

8BP16 - Standard 16-channel backpanel with standoffs for mounting. 8BP16 -
Standard 16-channel backpanel with standoffs for mounting.

The 8BP16 backpanels can accept any of the 8B analog I/O modules in any mixture and can be mounted on the SCMXRK-002 19-inch metal rack. Analog I/O signal ...

8BPWR-2 - 8B Power Supply Module 8BPWR-2 -
8B Power Supply Module

The 8BPWR-2 encapsulated power supply has a wide ranging 7-34VDC input voltage range and provides 5VDC output suitable for all 8B modules. It is designed to mount on ...

8BXIF - Universal Interface Board 8BXIF -
Universal Interface Board

The 8BXIF is a universal interface board which converts a DB25 cable input to 25 screw terminals for discrete wire. It can be mounted on the back of ...

MAQ20-XCA - Cables to Interface 8B Backpanels to MAQ20-VSN Modules MAQ20-XCA - Cables to Interface 8B Backpanels to MAQ20-VSN ModulesMAQ20 backbone expansion
SCMXCA006 - Interface cables SCMXCA006 -
Interface cables

System interface cable for the 8BP04/08/16 backpanels. This is a DB25 Male/Female cable assembly. It can be ordered in lengths of 1m, 2m, and 7m.

SCMXPRT-001/D - 8B Power Supply Module SCMXPRT-001/D -
8B Power Supply Module

The SCMXPRT-001/D encapsulated power supplies is available in 220VAC input voltage ranges and provide 5VDC outputs suitable for all 8B modules.

SCMXPRT-003 - 8B Linear Power Supply SCMXPRT-003 -
8B Linear Power Supply

The SCMXPRT-003 linear power supplies is available in 220VAC input voltage ranges and provide 5VDC outputs suitable for all 8B modules.

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

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