This blog will present application solutions and equipment used in process heating. Components such as temperature controls, thermocouples, gas pressure regulators and flow meters, to complete industrial burner systems will be discussed. We hope to educate on current technologies, introduce unique process heating applications, and present new industrial heating/process products. For more, please visit Combustion Technology or call 800-327-1831.
Wiring the Siemens Combustion Controls SQM4 Synchro for 4-20 mA Modulation
This video explains the simple wiring of the most common SQM4 Synchro actuator from Siemens Combustion Controls. The "5" board (SQM4x.x5x...) is used with a 4-20mA signal and offers a fantastic alternative to outdated MODulating actuators.
The Siemens SQM4 Synchro is a cost effective modulating actuator with up to 160 in-lbs and 12 or 25 second drive times for 90 degrees. The SQM4 Synchro is suited for driving oil pressure controller, butterfly valves, dampers or for use on other applications that require rotary motion.
SQM4 SYNCHRO FEATURES
NEMA 4 – No need for weather shields
No restrictions on mounting orientation – No more elaborate linkages to keep the shaft horizontal!
The modulating input versions accept 2-10 Vdc, 4-20 mA or 0-135 ohm control signals
Areas of application are oil and gas burners of medium to higher capacity as well as