Product selector Find the right Kuncham instrument Answer a few application questions and narrow the most suitable Kuncham product family.
Signal & measurement Choose a signal & measurement tool Scale signals, check analog loops, PLC counts, damping, HART addressing and measurement performance.
4–20 mA ↔ Process Variable Calculator Convert between a 4–20 mA loop signal and its engineering-unit process value. Open tool
Analog Signal Error & Calibration Calculator Compute measurement error against span for common analog signal types. Open tool
Voltage Loop Scaler Linearly scale a voltage signal to (or from) an engineering-unit range. Open tool
Square Root Extractor — DP Flow Simulate a DP flow transmitter with editable valve position, DP span, flow span, square-root extraction, 4–20 mA output, trend and totalizer. Open tool
PLC Raw Counts / A-D Converter Convert A/D raw counts to an engineering-unit value for a given resolution. Open tool
Loop Loading & Maximum Impedance Calculator Determine the maximum allowable loop resistance for a 2-wire loop at an editable design current. Open tool
Split-Range Valve Allocator Allocate a single 4–20 mA controller output to two split-range valves. Open tool
HART Multi-Drop Address Check Validate a HART polling address for multi-drop loop configuration. Open tool
Signal Damping / Time Constant Calculator Model and run a first-order instrument response between editable initial and final process values. Open tool
Pressure & level Choose a pressure & level tool Convert pressure, calculate hydrostatic level, tank volume, remote-seal effects and level-related pressure ranges.
Pressure Unit Converter Convert between common pressure units used in process instrumentation. Open tool
Hydrostatic Pressure ↔ Liquid Level Calculator Relate liquid column height to hydrostatic pressure for a given specific gravity. Open tool
Tank Volume & Liquid Level Calculator Calculate contained liquid volume from level for common tank geometries. Open tool
Tank Height → Recommended Transmitter Pressure Range Determine a suitable calibrated pressure range for a level transmitter. Open tool
Length / Height Unit Converter Convert between common length and height units. Open tool
Remote Seal Elevation / Suppression Calculator Compute the zero shift caused by a capillary fill-fluid height difference. Open tool
Bubbler Purge Backpressure Calculator Determine required purge gas supply pressure for a dip-tube bubbler system. Open tool
DP Static Pressure Shift Calculator Estimate zero shift caused by high static line pressure on a DP transmitter. Open tool
Flow & pipeline Choose a flow & pipeline tool Work with DP flow, pressure drop, Reynolds number, valve sizing, steam and pipeline behaviour.
Differential Pressure / Orifice Flow Calculator Fully controllable orifice-flow station with valve-driven or directly entered ΔP, editable geometry, fluid SG, DP span, 4–20 mA output and totalization. Open tool
Pipe Pressure Drop Calculator Simulate a flowing pipeline and calculate velocity, Reynolds number, friction factor, pressure loss and outlet pressure. Open tool
Control Valve Sizing — Cv Calculator Estimate the required valve flow coefficient (Cv) for a liquid application. Open tool
Orifice Beta Ratio Calculator Compute the beta ratio (or bore size) for an orifice plate. Open tool
Reynolds Number Calculator Determine flow regime (laminar / transitional / turbulent) in a pipe. Open tool
Gas Compressibility Z-Factor Calculator Estimate gas compressibility factor from reduced pressure and temperature. Open tool
Saturated Steam Calculator Estimate saturation temperature for a given saturated steam pressure. Open tool
Vortex Shedding Frequency Calculator Estimate the shedding frequency of a vortex flowmeter bluff body. Open tool
Mass Flow Pressure / Temperature Correction Calculator Correct a measured gas flow reading to standard/reference conditions. Open tool
Turndown Ratio / Rangeability Calculator Compute the turndown ratio of a flow measurement device. Open tool
Temperature Choose a temperature tool Convert temperature and evaluate RTDs, thermocouples, thermistors and thermowell applications.
Temperature Unit Converter Convert between Celsius, Fahrenheit, Kelvin, and Rankine. Open tool
Pt100 / Pt1000 RTD Calculator Convert between temperature and resistance for a platinum RTD with editable R0 and alpha for simulation/calibration studies. Open tool
Thermocouple mV → Temperature Calculator Approximate temperature from thermocouple millivolt output. Open tool
Thermowell Resonance Check Screen a thermowell for flow-induced resonance risk (simplified). Open tool
Thermowell Insertion Length Check Check thermowell immersion depth against the U/d ≥ 10 rule of thumb. Open tool
Thermistor / Steinhart-Hart Calculator Convert thermistor resistance to temperature using the Steinhart-Hart equation. Open tool
Materials & fabrication Choose a materials & fabrication tool Estimate metal weight, nesting, raw stock, cutting requirements and fabrication material usage.
Metal Weight Calculator Calculate single-piece and batch weight for plate/sheet, round, square, flat, hex bar or pipe/tube stock. Open tool
Sheet & Plate Material Requirement / Nesting Calculator Lay out repeated rectangular parts on standard sheet/plate stock and calculate sheets required, utilization, scrap and material weight. Open tool
Rod, Bar & Pipe Material Requirement / Cutting Calculator Cut repeated components from standard rod, square/flat/hex bar or pipe stock and calculate stock lengths, kerf loss, leftover and weight. Open tool
Standard Stock Length / Cutting Optimization Calculator Optimize repeated cuts from standard stock while accounting for saw kerf and end trim. Open tool
Calibration & safety Choose a calibration & safety tool Calibration, tolerance, intrinsic-safety, SIL, reliability and control-valve response checks.
Transmitter Accuracy & Error Calculator Compute measurement error as a percentage of span and of reading. Open tool
As-Found 5-Point Calibration Check Check a 5-point as-found calibration against tolerance (values as % of span). Open tool
IS Entity Parameter Matcher Check intrinsic-safety entity parameter compatibility between barrier, cable, and field device. Open tool
SIL PFDavg → Risk Reduction Factor Calculator Convert average probability of failure on demand to risk reduction factor and SIL band. Open tool
Hysteresis & Deadband Calculator Compute instrument hysteresis from up-scale and down-scale readings. Open tool
MTBF ↔ Failure Rate Calculator Convert between MTBF and failure rate, and estimate system availability. Open tool
Valve Dead-Time & Step Response Calculator Run a control-valve step test with editable initial position, commanded position, dead time and first-order time constant. Open tool
Analytical & gas Choose a analytical & gas tool pH, conductivity, gas concentration, oxygen and other analytical measurement calculations.
pH from EMF / Nernst Calculator Compute pH from electrode millivolt output using the temperature-compensated Nernst equation. Open tool
Conductivity → TDS Calculator Estimate total dissolved solids from a conductivity measurement. Open tool
Gas Concentration Unit Converter Convert gas concentration between ppm (v/v) and mg/m³. Open tool
Zirconia O₂ Analyzer Calculator Compute sample oxygen concentration from a zirconia cell millivolt output. Open tool
ORP Temperature Standardization Calculator Correct a measured ORP reading to a standard 25 °C reference. Open tool
Venting & utilities Choose a venting & utilities tool Tank breathing, nitrogen purge and loop-cable installation-support calculations.
Tank In-Breathing / Out-Breathing Calculator Estimate atmospheric tank venting load from liquid movement and thermal breathing, with selectable filling or emptying direction. Open tool
Nitrogen Purge Rate Calculator Determine required nitrogen purge flow rate for a vessel volume change target. Open tool
Loop Cable Voltage Drop Calculator Check available voltage at a 2-wire loop-powered device after cable resistance loss. Open tool