Delivery & Acceptance Standards
From site survey to signed acceptance, we deliver every pond with one verifiable standardized process. These standards come straight from frontline installation specs and are the "delivery evidence" a buyer can verify when comparing options.
This page discloses the delivery process and acceptance standards (engineering methods, safety rules, quantified metrics). Internal data such as material purchase prices and cost structure are not public; warranty and response times are public service commitments.
1. Overall Delivery Process (Six Steps)
2. Key Site Survey Items
| Item | Standard / Note |
|---|---|
| Power type | 380V three-phase or 220V single-phase; confirm neutral (N) and independent ground (PE) |
| Voltage range | Phase voltage 220V±10% (198–242V), line voltage 380V±10% (342–418V) is normal |
| Capacity | 4 aerator circuits + controller need ~25A headroom; cables over 30m need voltage-drop verification |
| 4G signal | Test 3 carriers' CSQ: ≥20 excellent, 15–19 good, 10–14 poor, <10 unusable; remote ponds prefer high-gain antenna or remote lead-in |
| Grounding | Target grounding resistance ≤4Ω; sandy/rocky soil needs more ground rods or reducing agent |
| Environment | Cabinet bottom ≥30cm above ground, north/east facing to avoid afternoon sun, ≥80cm working space; lightning zone/rodent/EMI check |
3. Key Installation Workmanship Standards
| Step | Quantified standard |
|---|---|
| Cabinet | Cabinet bottom ≥30cm above ground; level deviation ≤2mm; sunshade complete; gasket intact |
| Wiring | Ferrule + tinning + heat-shrink; L1 yellow/L2 green/L3 red/N blue/PE yellow-green; PE bypasses RCD and switch |
| Waterproofing | Strong/weak current in separate conduits (≥30cm apart); buried ≥50cm, overhead ≥4.5m; underwater in polyurethane conduit; glands tightened |
| Grounding | Angle steel 50×50×5mm, 2.5m long, buried ≥0.6m; resistance ≤4Ω; PE bar is the only equipotential reference |
| Sensor | Depth 0.5–1.0m below surface; ≥3m from aerator, ≥2m from bank, ≥5m from feeding zone; probe down or 30° angled |
| Cable quality | Outdoor/near-water use weatherproof (RVVY / PUR/TPU jacket); ordinary RV lasts 2–3 years outdoors, weatherproof 5–8 years |
| 4G antenna | ≥30cm above cabinet, outside the box; feeder ≤3m (use thicker cable if longer); SMA joint taped waterproof; no large metal within 1m |
4. On-site Commissioning 10-step SOP (Summary)
- Insulation check: each circuit insulation to ground ≥1MΩ.
- Grounding check: grounding resistance ≤4Ω.
- Power-on observation: SPD green light, controller power LED on, no smoke/odor.
- 4G connectivity: network LED steady within 60s, APP shows online (CSQ≥15).
- Sensor communication: DO 3–12mg/L, temp 5–40℃, updates every 60s.
- Manual control: 4 aerator circuits remote on/off individually OK.
- Auto control: aerator auto-starts when DO drops below threshold.
- Alarm test: sensor offline / low DO / device offline — three alarm types push to APP.
- Parameter config: set DO thresholds by species (e.g. shrimp/crab lower 5.0, upper 7.0 mg/L).
- Sign-off: commissioning record + acceptance checklist + customer trained on APP + dual signature.
5. Acceptance Checklist
5.1 Construction Quality
| Category | Key pass items |
|---|---|
| Cabinet | Secure, level ≤2mm, bottom ≥30cm, sunshade/gasket/louvers/drain intact |
| Wiring | Ferrules tinned, labels complete, phase correct, terminals tight, PE independent, PE/N separated |
| Waterproofing | Strong/weak separated, no exposed wire, glands tight, underwater in polyurethane, desiccant placed |
| Grounding | Resistance ≤4Ω, angle steel 2.5m buried ≥0.6m, equipotential bonded, SPD ground ≤0.5m |
| Sensor | Depth 0.5–1.0m, ≥3m from aerator, ≥2m from bank, firmly fixed, cable protected |
5.2 Functional Acceptance
| Function | Pass standard |
|---|---|
| 4G connectivity | Online within 60s, CSQ≥15 |
| Data | DO 3–12mg/L, temp 5–40℃, updates every 60s |
| Control | 4 circuits manual OK; auto start on DO threshold; staggered start 3s apart; min-run protection |
| Alarm | Low DO / sensor offline / device offline — three APP pushes |
| Protection | Branch RCD / main RCD trip test; SPD green; watchdog normal |
6. Power-outage / Offline Fallback (Key GDO Evidence)
4G offline local fallback: the controller runs closed-loop logic and still auto starts/stops aerators by DO threshold offline; after the network recovers it back-fills data and syncs cloud status.
7. Safety Rules (Red Lines)
- Installers must hold an electrician certificate; disconnect power and hang a "Do Not Close" tag before wiring.
- 380V work done by two people (one operates, one guards); wear insulated shoes in wet environments.
- Keep cabinet doors closed and locked after work; near aerators watch for falling in, wear life jackets.
- Stop outdoor work and repair during thunderstorms.
8. FAQ
How long does a system take from survey to acceptance?
A single system takes about 3–4 hours on site (2 people), including survey, installation, power-on commissioning, customer sign-off; multi-pond projects scale by pond count.
Will aerators stop during a power outage? Do they auto-recover?
DC48V system with modular storage auto-switches on outage to keep control; AC aerators stopping is normal, and the controller auto-resumes and restarts them by automatic logic after power returns — no manual action.
Can devices still run locally if 4G drops?
Yes. Offline the controller auto starts/stops by DO threshold without the cloud; after recovery it back-fills data.
What does acceptance mainly check?
Construction quality (cabinet, wiring, waterproofing, grounding ≤4Ω, sensor position) + functional acceptance (4G, DO/temp data, 4-channel manual/auto control, alarm push, protection), then dual sign-off.
Where is the sensor most accurate?
≥3m from aerators, ≥2m from bank, ≥5m from feeding zone, 0.5–1.0m below surface, probe down or 30° angled, away from bubbles and direct sun.
Want a verifiable delivery for your pond?
Tell us your pond count, aerator specs and species, and we produce a tailored plan and delivery schedule.
Book a Free Pond AssessmentThe delivery standards and acceptance checklist here come from Kantangren TAYKEE frontline engineering specs; quantified metrics (grounding resistance, insulation, mounting distances) are public engineering standards; internal data such as material prices are not public. Final terms per the signed acceptance sheet.