Single replay

4 relay override

2 Stage relay

3 Stage relay

4 Stage relay

6 (10) Stage relay

8 Stage relay

Phase cut
module

Digital input
multiplexors

Resistance input
module

Transmitter setpoint
controller

Analogue rescaling
module

Analogue override
module

E-I & I-P
convertor

Transformers

Resistance output module

Max, min, average module

Raise / lower in
0-10VDC out