3738 - Advanced limit switch

The Type 3738 smart inductive limit switches for pneumatic control valves are designed to work in all general industrial applications. The limit switch will work on linear control valves via IEC NAMUR and direct (Type 3277 actuator) attachment methods, as well as on rotary valves according to VDI/VDE 3845.

The 3738 limit switches are offered in two versions: the 3738-20 with diagnostics and the 3738-50 with Foundation Fieldbus and diagnostics. Diagnostic functions of the 3738 include partial stroke test (PST), movement counter, operating hours counter, and dead time and transit time measurement.

• Operation: Linear or rotary
• Switching: Inductive
• Permissible ambient temperature: –40 to 80 °C
• Explosion protection: without, Ex ia, Ex e
• Features: Diagnostic capability, solenoid valve