Key Parameters & Specifications Parameter / Feature Category Description Product Name Fisher™ QUIKLOOK 3-FS Portable Communicator / Calibrator Primary Application Configuration, calibration, and diagnostics of Fisher FIELDVUE® digital valve controllers, DVC series positioners, and other HART communication protocol devices. Communication Protocol HART (Highway Addressable Remote Transducer) Protocol. Display Backlit LCD screen for displaying menus, parameters, and graphical data. Input / Control Keypad for navigation and data entry. Power Supply Uses replaceable alkaline batteries or a rechargeable battery pack. Pressure Measurement • Ranges: Typically features two built-in pressure sensors (e.g., one high range like 0-750 psi / 0-52 bar, and one low range like 0-150 psi / 0-10 bar) for precise measurement of pneumatic actuator supply and output pressures. • Accuracy: Typically ±0.1% of reading or better. Current Measurement • Range: Measures the 4-20 mA analog input/output signal. • Accuracy: Typically ±0.025% of reading or better. Current Sourcing / Simulation Can source and simulate a 4-20 mA signal to test valve travel or controller output. Pressure Control / Simulation Does not have a built-in pressure pump or regulator to control air pressure. It is primarily used for measuring and monitoring pressure, not for generating it. An external air supply is required for testing. Valve Testing & Diagnostic Functions • Auto/Manual Stroke Testing: For calibrating valve zero and span. • Step Response Test: Evaluates the dynamic response performance of the valve assembly. • Friction Test: Diagnoses packing and actuator friction. • Travel Deviation Monitoring: Monitors and records deviations from the expected valve position. Software & Data Management Capable of storing device configurations and test results. Data can often be transferred to a computer for further analysis and record-keeping. Environmental Rating Typically rated for use in harsh industrial environments and may have certifications for use in hazardous areas.