Product Description

NAKAKITA NS770C Series Pneumatic Indicating Controller

The NAKAKITA NS770C series represents a line of pneumatic indicating controllers designed for reliable process control in various industrial and marine applications. These controllers typically manage temperature or pressure by modulating a final control element (like a valve) based on the difference between the measured process variable and the desired setpoint. Featuring a clear indicating scale for both the setpoint and the process variable, the NS770C allows for easy monitoring and adjustment. Built for durability, they are often employed in demanding environments such as ship engine rooms for controlling cooling water temperature, lubricating oil temperature, or steam pressure.

Technical Specifications:

Controller Type: Pneumatic Indicating Controller
Control Action: Typically Proportional (P) or Proportional + Integral (PI) depending on model
Input Signal: Process variable (Temperature or Pressure, specific range depends on model)
Output Signal: Standard pneumatic signal (e.g., 0.02-0.1 MPa / 0.2-1.0 kgf/cm² / 3-15 psi)
Supply Air Pressure: Typically 0.14 MPa (1.4 kgf/cm² / 20 psi)
Indication: Analog scale for setpoint and process variable
Adjustment: Setpoint knob, Proportional band adjustment (and Integral time if applicable)
Mounting: Typically surface or panel mounting
Application: Temperature control (e.g., cooling water, oil), Pressure control (e.g., steam)
Manufacturer: Nakakita Seisakusho Co., Ltd.