Fisher 4195K Gauge Pressure Indicating Controller
Rp123000.00
Fisher 4195K Gauge Pressure Indicating Controller
Descriptions
The Fisher 4195K Series is a rugged, field-mounted pneumatic controller designed to measure and control pressure in a wide range of industrial processes. Built with a precise mechanical design and robust housing, it provides dependable performance, high accuracy, and ease of calibration in demanding environments such as oil and gas, chemical, refining, and power generation facilities.
The 4195K controller combines a pressure gauge indicator with a pneumatic control mechanism, allowing direct on-site pressure monitoring and automatic adjustment of control valves without the need for external power. Its dual-pointer display clearly shows both process pressure and set point, enabling operators to quickly visualize deviations and system performance.
This instrument can operate in Proportional (P), Proportional + Reset (PI), or Proportional + Reset + Rate (PID) modes to maintain optimal process control. It accepts a 3–15 psi input signal and delivers a matching 3–15 psi output, making it fully compatible with standard pneumatic control systems.
Designed for field reliability, the Fisher 4195K features a weatherproof enclosure, corrosion-resistant materials, and stable performance across wide temperature ranges. It supports direct or reverse acting operation, with adjustable zero, span, proportional band, reset, and rate settings for precise tuning.
The 4195KBFE variant specifically offers balanced performance for gauge pressure applications, ideal for maintaining stable control of line pressure, vessel pressure, or pneumatic systems in process industries.
Technical Specifications
Parameter | Specification |
Manufacturer / Brand | Fisher – Emerson |
Model / Type | 4195K (Variant: 4195KBFE) |
Instrument Type | Pneumatic Gauge Pressure Indicating Controller |
Input Signal Range | 3 to 15 psi |
Output Signal Range | 3 to 15 psi |
Maximum Outlet Pressure | 40 psi |
Controller Modes | P, PI, PID, Differential Gap (On/Off) |
Action | Direct or Reverse (field reversible) |
Repeatability | ±0.4% of output span |
Dead Band | Less than 0.4% of process span |
Steady-State Air Consumption | Approx. 0.08 m³/hr (2.8 scfh) for 3–15 psi output |
Supply Medium | Clean, dry air or non-corrosive natural gas |
Process Connection | ¼″ NPT female (stainless steel) |
Optional Connection | ½″ NPT adapters |
Enclosure / Protection | Weatherproof (NEMA 3 / IEC IP54) |
Ambient Temperature Range | –40 to +71 °C (–40 to +160 °F) |
Indication | Dual pointer for process pressure and set point |
Adjustments | Set point, zero, span, proportional band (5–500%), reset, rate |
Material | Corrosion-resistant aluminum housing with stainless steel internals |
Mounting | Wall, panel, or pipe mounting |
Hazardous Area Classification | ATEX Group II, Category 2 Gas & Dust |
Weight | Approx. 4.5 kg (10 lb) |
