Sterlco M2B+ Controller - Manual (Page 10)

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Chapter 2: Functional Description
2-1 Models Covered in This Manual
This manual provides operation, installation, and maintenance instructions for the Advanced
and M2B+ controller. The Advanced and M2B+ are available for use with several models of
temperature control units (TCUs). A separate manual describes operation, installation, and
maintenance instructions for the
TCU itself.
2-2 General Description
The Advanced and the M2B+ are microprocessor-based process controllers designed for use
with temperature control units. The Advanced and M2B+ monitor and maintain the
temperature of the fluid in any given process to a selected setpoint using a unique
proportional integral derivative (PID) auto-tuning program. The controller employs PID
algorithms to automatically tune the system to heat or cool the fluid as required by the
process.
The Advanced and M2B+ have a Liquid Crystal Display (LCD) that provides all operational
status and programming menus. The controllers includes self- diagnostics to check hardware
functions. All diagnostic information is displayed in the second line of the Liquid Crystal
Display.
The Advanced and M2B+ are panel-mounted and have a membrane keypad with tactile
feedback. When properly installed with a sealing gasket, the Advanced and M2B+ meet
NEMA 4 or IP66 integrity.