Impulse SCMXIF - Manual (Page 3)

SCM7B
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Isolated Process Control Signal Conditioning Products
SCM7B
SCM7BP01/SCM7BP02
Backpanel
Description
The SCM7BP01 (Figure 3) and SCM7BP02 (Figure 4) are 1 and 2 channel
backpanels. Unlike other backpanels available, both the system and field side
sides have screw terminal connectors able to accept discrete wire (10-24 AWG).
The backpanels can be ordered with standoffs to allow mounting, using a #6
or smaller screw, or with DIN rail mounting hardware.
System Side - Power
Both backpanels accept 14-35VDC between “V+” and “COM” using a screw
terminal (10-24 AWG) block. No reverse supply diodes are provided with this
model, but both are fused at 1/4 Amp (01) or 1/2 Amp (02) for module protection.
Field Side - Signal
On the field side, a temperature sensor is mounted underneath the field side
terminal block to provide cold junction compensation for thermocouple modules,
and a current-to-voltage conversion resistor (P/N SCM7BXR1) socket location
is provided (supplied with SCM7B33 modules).
Specifications
Operating Temperature –40°C to +85°C
ATEX Group II, Category 3 –20°C to +40°C
Relative Humidity 90%
Interface Connector:
Field high density screw clamp, 10-24 AWG
System high density screw clamp, 10-24 AWG
Figure 4: SCM7BP02 Dimensions
Figure 3: SCM7BP01 Dimensions