West Instruments Limit Controllers

The Classic 96mm * 96mm PID controller format

The Modern, compact 48mm * 48mm format

All the controllers shown above come with the main control output as selected and their modular construction means that you can simply purchase and fit additional option boards as and when required. As well as the main control output there are a further 2 general purpose module slots, which can be populated as follows
Maximum 2 relays (1 cool output and/or 1 alarm output or 2 alarms)
Maximum 1 retransmission
Maximum 1 transmitter power supply (NOT on 6100)
There is a further option slot which can accomodate EITHER
a RS485 comms module OR a Dual Setpoint module
Easy to follow instructions to fit the modules are included with every instrument and no soldering is required!