Free Instrumentation Simulators: 4–20 mA, DP Level, Gas Detector, Loading Arm

Instrumaniaa Software – Simulation

Free online simulators and engineering tools for instrumentation, oil terminals & fire and gas safety.

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Simulators

Engineering tools

Transmitter range

Convert a process value into a 4–20 mA loop signal (NAMUR NE43 diagnostics).

LRV (4 mA)

URV (20 mA)

Unit Process value:

Loop output

Signal sent to the PLC / DCS.

12.00 mA

Percent of span

Loop statusOK

Tank & fluid

Hydrostatic level measurement: ΔP = ρ · g · h.

Tank height (m)

Fluid (kg/m³)

Low alarm (%)

High alarm (%)

Level:

Differential pressure

Transmitter output

AlarmNORMAL

Orifice plate

Flow is proportional to √ΔP. Compare linear vs square-root extracted output.

Max flow (m³/h)

ΔP at max flow (mbar)

Measured ΔP:

Result

Calculated volumetric flow.

Output – linear ΔP

Output – √ extraction

Low-flow cutoff (<1% ΔP)ACTIVE FLOW

Fixed gas detector

Simulate gas concentration and two-level alarms (A1 / A2). Thresholds are editable — follow your site standard.

Gas

Alarm A1

Alarm A2

Concentration:

Detector status

Output signal

StatusNORMAL

Ship movement & arm envelope

Move the tanker (drift, tide, surge) and watch the position monitoring system: pre-alarm, ESD1 (stop loading) and ESD2 (emergency release – PERC).

Inner arm (m)

Outer arm (m)

Ship drift – distance riser / manifold: Tide & draft – manifold height above quay: Surge – movement along berth:

Reach (% of max)

Slew angle

Inner / outer arm angle

Envelope statusNORMAL

Local control panel

Hydraulics

Coupler

Valve open

ERS released

Loading rate0 m³/h

Loaded volume (simulated, ×60 speed)0.0 m³

Unit converter

Pressure, temperature, flow, length, volume and mass — all results at once.

Quantity

Value

From unit

Results

Instrument selection assistant

Describe your application to get the recommended measurement technology and a preliminary specification.

Measured variable

Process medium

Max. process temp. (°C)

Max. pressure (bar g)

Pipe size (DN)

Hazardous area

Electrically conductive liquid (>5 µS/cm) Corrosive medium High accuracy / custody transfer Foam, vapour or agitator (level) Safety function (SIS / SIL)

Recommendation

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Flame Detector Coverage Simulator — 3D

Choose an IR, IR3 or UV/IR detector (standard values or your own datasheet values), place the fire and see the cone of vision, blind zones and 2ooN voting.

Open in full page

P&ID Reader — Instrument Index, I/O List, Datasheets & Loop Diagrams

Upload a P&ID (PDF): get the instrument index, the I/O list, the I/O card summary, a datasheet and a loop diagram for every instrument.

Simulators and tools are for training and pre-sizing only; they do not replace a detailed engineering study.

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Simulation · instrumaniaa software

Marine Loading Arm Simulator — full version

Operate the arm from the local control panel, move the ship and follow live the signals the PLC sends to the SCADA, right up to ERS release.