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Sensorlex, 8b isolated analog signal conditioning products – Impulse SCMXRAIL1 User Manual

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34

SensorLex

™

8B Isolated Analog Signal Conditioning Products

8B

Ordering Information

Part Number Description

8BP02

Standard 2-channel backpanel with standoffs for mounting.

8BP02-1

8BP02 without cold junction compensation sensor. Use when

cost savings is desired and thermocouple input modules

8B37 and 8B47 will not be used.

8BP02-2

8BP02 with DIN rail mounting option. The backpanel is

captured by DIN rail mounting elements and is shipped

fully assembled.

8BP02-3

8BP02-1 with DIN rail mounting option.

8BP04

Standard 4-channel backpanel with standoffs for mounting.

8BP04-1

8BP04 without cold junction compensation sensor. Use when

cost savings is desired and thermocouple input modules

8B37 and 8B47 will not be used.

8BP04-2

8BP04 with DIN rail mounting option. The backpanel is

captured by DIN rail mounting elements and is shipped

fully assembled.

8BP04-3

8BP04-1 with DIN rail mounting option.

8BP08

Standard 8-channel backpanel with standoffs for mounting.

8BP08-1

8BP08 without cold junction compensation sensor. Use when

cost savings is desired and thermocouple input modules

8B37 and 8B47 will not be used.

8BP08-2

8BP08 with DIN rail mounting option. The backpanel is

captured by DIN rail mounting elements and is shipped

fully assembled.

8BP08-3

8BP08-1 with DIN rail mounting option.

8BP16

Standard 16-channel backpanel with standoffs for mounting.

8BP16-1

8BP16 without cold junction compensation sensor. Use when

cost savings is desired and thermocouple input modules

8B37 and 8B47 will not be used.

8BP16-2

8BP16 with DIN rail mounting option. The backpanel is

captured by DIN rail mounting elements and is shipped

fully assembled.

8BP16-3

8BP16-1 with DIN rail mounting option.

Electrical

Power

The 8B backpanels have two power supply options. A +5VDC ±5% supply can

be connected to the ‘+5V Supply’ terminal block, or alternatively, a wide ranging

12-28VDC supply can be connected to the ‘Alternate Supply’ terminal block. In

the latter case, the 8BPWR-2 module must be installed on the backpanel. The

backpanel contains circuitry which automatically switches between the supplies

such that only one at a time provides power to the modules. When power

connections are made to both terminal blocks simultaneously, the 12-28VDC

supply takes precedence over the +5VDC supply.

Fusing

Backpanel power is fuse protected through F1 and F2. Zener diodes D3 and

D4 provide extra protection from overvoltage and supply reversal.

Grounding

For full protection against large electrical disturbances on the field-side of the 8B

modules, a #10-32 ground stud is provided on the backpanel. An electrical

connection between this ground stud and system ground should be provided

with a large gauge wire of the shortest possible length.

Figure 3: 8BP08 Analog I/O Backpanel

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