Impulse SCMXRK-002 - Manual (Page 3)

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SensorLex ® 8B Isolated Analog Signal Conditioning Products 8B
8B
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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 are 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 are 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 are 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 are 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
7-34VDC 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 7-34VDC
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 the system ground should be provided
with a large gage wire of the shortest possible length.
Figure 4: 8BP08 Analog I/O Backpanel