Technical Data & Features
This chapter summarizes key capabilities, device compatibility, and technical limits of the EasyGraph system.
Software Capabilities
| Feature |
Value / Description |
| Supported OS |
Windows x64 |
| Runtime |
.NET 9.0 Desktop Runtime |
| Interface language |
English, German |
| Max sample rate |
Up to ~1000 Hz (device-dependent) |
| Channel model |
Multi-device aggregation; channels only limited by host resources |
| Triggering |
Threshold-based with pre-trigger buffer, configurable duration, and hold mode |
| Recording modes |
Manual and trigger-controlled |
| Analysis tools |
Cursor measurement (time + value delta, statistics), zoom/pan navigation |
| Math Settings |
Per-channel gain and offset for engineering-unit conversion |
| Math Channels |
Formula-based derived channels (live + recordable; beta) |
| Calculation Assistant |
K-factor, IPF, nominal flowrate, gain/offset for analog sensors |
| Virtual Folders |
Logical organization of recordings and analysis assets within a session |
| Gear/Rotor Visualization |
Flowmeter gear visualization tool for mechanical inspection |
| Rendering |
GPU-accelerated live plot via DirectX 11 |
| Powersave |
Frame throttle on window unfocus or session lock |
| Localization |
Multi-language UI; currently English and German |
Supported Devices
| Device |
Interface |
Activation model |
Channels / signals |
| log.flow (4881) |
USB — FTDI D2XX |
Hardware serial key (offline) |
2× frequency / pulse (HTL) |
| log.flowV (4881/V) |
USB — FTDI D2XX |
Hardware serial key (offline) |
1× frequency / pulse + 1× analog voltage (0..10 V) |
| log.flowI (4881/I) |
USB — FTDI D2XX |
Hardware serial key (offline) |
1× frequency / pulse + 1× analog current (0/4..20 mA) |
| IO.flow® |
IO-Link USB master |
Online software license |
IO-Link flowmeter — flowrate + volume |
| A341 |
USB-RS232 adapter |
Online software license |
Display value e.g. flowrate |
| A350 |
USB-RS232 adapter |
Online software license |
Display value e.g. flowrate or volume |
| FU210 |
Mini-USB |
Online software license |
Measured value e.g. flowrate or volume |
| SimpleSerial |
Any COM port |
Online software license |
Plain-text serial source; configurable parser |
Signal Compatibility (log.flow)
| Parameter |
Value |
| Supported input signal type |
HTL (0..24 V) push-pull / PNP |
| TTL (0..5 V) or NPN support |
No / Only with external components |
| Input high threshold (\(V_{IH}\)) |
> 21 V |
| Input low threshold (\(V_{IL}\)) |
< 7.8 V |
| Undefined input range |
7.8 V … 21 V (avoid) |
| Maximum input voltage (protected) |
26 V |
| Internal pull-down resistance |
~8 kΩ (LOW when unconnected) |
| Connector type |
M12 (4/5-pin) |
| Max measurable input frequency |
~ 1–2 MHz |
| Recommended max input frequency |
≤ 250 kHz |
| Max USB sample rate |
1000 Hz |
| Analog voltage input range (4881/V, pin 4) |
0..10 V |
| Analog current input range (4881/I, pin 4) |
0/4..20 mA |
| Internal 24 V boost converter output |
≤ 50 mA @ 24 V total |
| External supply voltage (DC jack) |
24 V DC nominal (18–26 V DC) |
For full mechanical and electrical specifications see log.flow Device Specifications.
| Format |
Extension |
Re-importable |
Use case |
| Binary |
.bin |
Yes |
Full-fidelity archive; preferred for re-analysis |
| XML |
.xml |
Yes |
Legacy / alternative archive format |
| Excel Report |
.xlsx |
No |
Statistical summary for documentation (not raw data) |
| PDF Report |
.pdf |
No |
Print-ready document with plot snapshots |
License Model
| Device family |
License type |
Internet required at startup |
License bound to |
| log.flow |
Hardware serial key |
No |
Device hardware (portable across PCs) |
| IO.flow®, A341, A350, FU210, SimpleSerial |
Software license key |
Yes |
Activation slot (PC-limited) |
Minimum PC Requirements
See the current requirement list under Hardware requirements.