03 / EC TEST & EVALUATION
Watch Yunxue’s English fertigation precision demonstration, then use the evaluation notes below to discuss the performance your project needs.
Read the test notes ↓The stated EC range refers to steady-state control under specified operating conditions. It is not a certified absolute measurement accuracy specification or a guarantee for all models.
WRITTEN VIDEO OVERVIEW
The video introduces Yunxue’s development work on fertigation control and presents an EC-control demonstration at a target EC of 2.00 mS/cm. The stated EC variation at steady state is ±0.03mS/cm; verify performance under the conditions agreed for your project.
This is a manufacturer demonstration. The number should be read with the test setup and control version, and should not be treated as an independent calibration certificate or a universal field-performance guarantee.
For a procurement decision, ask for the configuration, test conditions and measurement records relevant to the machine being supplied.
INTERPRETING AN EC RESULT
Measures how tightly the monitored EC value stays around the target setpoint under continuous settled flow. The stated EC variation at steady state is ±0.03mS/cm. Verify results against this range under the agreed test conditions once the system has stabilized.
Describes how close displayed readings are to traceable laboratory standards. Absolute accuracy requires calibrated industrial electrodes, routine calibration against standard solutions, and dynamic temperature compensation.
Evaluates settling time and transient overshoot when the machine starts, changes irrigation recipes, or responds to line flow step-changes. Dynamic stability prevents sudden shock to root systems.
The demonstration was recorded on a workshop test loop under controlled water chemistry, continuous flow, and specific GXF configurations. Results depend on local operating parameters and cannot be assumed for uncalibrated field conditions. Yunxue provides verifiable data rather than unverified claims.
AGREE THE ACCEPTANCE TEST
Use the same operating conditions and measurement method when comparing machines or control versions.
| Record | Why it matters |
|---|---|
| Machine model & controller version | Distinguishes the configuration tested from other models or revisions. |
| Water source, temperature & initial EC | Defines the incoming water and measurement conditions. |
| Stock-solution concentration & dosing channels | Describes the dosing load and available control range. |
| Flow, pressure & mixing arrangement | Defines the hydraulic conditions, including any storage or recirculation. |
| Sensor calibration & sampling location | Supports interpretation of the measured EC value. |
| Setpoint, sampling interval & duration | Separates startup behavior from a defined steady-state window. |
| Raw readings & pass criteria | Allows variation, target deviation and settling behavior to be evaluated consistently. |
A separate supporting page provides 75 readings from Yunxue’s technical presentation, with source notes and the conditions still required for a complete acceptance report. Inspect the recorded readings and test conditions. The presentation trace is a separate source from this video.
FROM A TEST TO YOUR PROJECT
Share your target EC/pH, crop, water source, flow range and existing equipment. We can discuss the appropriate machine and what should be verified before delivery.
Explore machine selection ↗TEST & ACCURACY QUESTIONS
No. The stated EC variation at steady state (±0.03mS/cm) describes allowable variation around the target setpoint under specified conditions; it is not proof of absolute measurement accuracy. Absolute accuracy requires calibrated sensors, reference standard solutions, and regular probe maintenance.
Steady-state variation is reading stability under constant conditions; measurement accuracy is truth against a reference liquid standard; dynamic response is recovery time and overshoot when recipes or flow rates shift. A complete evaluation requires looking at all three dimensions.
No. Field results depend on your selected model (mixing tank vs inline injection), controller revision, incoming water chemistry, fertilizer stock concentration, sensor cleanliness, and hydraulic backpressure. We establish performance criteria specifically for the machine and setup quoted.
Yes. Yunxue conducts hydraulic leak checks, sensor calibration tests, and electrical sequence testing on all machines prior to export crating. Specific factory acceptance testing (FAT) logs can be provided upon request.
Yes. Send your current machine model, control system details, existing EC/pH sensor type, and operational traces. We evaluate whether a control upgrade or skid replacement is appropriate.
LET’S DEFINE YOUR PROJECT
Send your crop, project location and irrigation needs. We can discuss a complete system, selected equipment or an upgrade.
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