The Series SCD-8 Multi-Loop DIN Rail Mount Temperature Controller can
be used to control up to 8 independent PID control circuits. The base
unit comes standard with 4 thermocouple or 3 RTD input channels.
Additional input cards can be purchased if
needed, but the additional inputs must be of the same type as the inputs
that came with
the base unit. If more than 8 loops are required or to mix input types,
SCD-2000 slave modules can be added without wiring additional power or
Each loop can be programmed either through the standard RS-485 serial
communications or an optional plug in LED display module. Each control
loop will have two outputs and a single input. The outputs can be
for dual loop control or for a control loop and an alarm. One of the two
outputs for each control loop must be a relay or pulsed voltage output.