Carlo Gavazzi 導電性レベルセンサー 481046

カルロ・ガヴァッツィ VNY 4 NS/NT Conductive Level Sensor (Item No.: 481046)

2. Full Core Technical Specifications

3. VNY Series Full Model List

4. 交換 & 相互参照

4.1 同じブランドの直接交換

4.2 ブランド間の同等モデル

5. Application Industries & 典型的なケース

推奨アプリケーション

1. プロセス産業: Tank level monitoring in chemical, petrochemical and pharmaceutical industries to prevent overflow and dry running
2. 食べ物 & 飲料: Raw material and finished tank level control for beer, beverage and dairy production lines
3. 水処理: Level monitoring for sedimentation tanks and reaction tanks in waterworks and wastewater plants
4. Energy Sector: Level protection for cooling and lubrication systems in power plants and substations
5. Mechanical Manufacturing: Oil level monitoring for hydraulic and lubrication systems to avoid equipment damage
6. Marine Industry: Level measurement for ship ballast tanks, fuel tanks and fresh water tanks

代表的な応用例

1. Chemical Plant Acid & Alkali Tank Level Control System

Application Goal: Monitor high/low levels of three 100m³ acid and alkali tanks to prevent overflow and pump dry running

主な利点: AISI316 corrosion-resistant electrodes; IP67 suitable for outdoor installation; 4-electrode enables multi-point level monitoring

システム構成: VNY 4 NS/NT (481046) × 3 + ELA amplifier relay + PLC control system + HMI touch screen

動作効果: Level control accuracy ±1cm, false alarm rate reduced by 95%, メンテナンスコストの削減 60%

2. Automobile Factory Hydraulic Station Oil Level Monitoring System

Application Goal: Monitor oil levels of 5 hydraulic stations to ensure stable operation and prevent oil shortage failure

主な利点: Vibration-resistant screw terminal design; oil-resistant PBTP housing; field-cuttable electrodes adaptable to various tank heights

システム構成: VNY 4 NS/NT (481046) × 5 + S196 amplifier + インジケーターライト + buzzer

動作効果: Equipment failure rate reduced by 40%, maintenance cycle doubled

推奨されないアプリケーション

Non-conductive liquids: Such as pure oil, alcohol, acetone; not detectable by conductive sensors

高温 >90℃: Adopt VPP series (up to 100°C) or high-temperature versions

使用圧力 >10 バー: Special high-pressure level sensor required

Strong corrosive media: Concentrated hydrochloric acid, concentrated sulfuric acid; use VPP series with PVDF electrodes or anti-corrosion coated models

6. インストール & 配線ガイドライン

インストール要件

1. 取付位置: Install on tank top or side, away from inlet ports and agitators; ensure vertical electrode immersion
2. Electrode Cutting: Cut electrode length on-site according to actual liquid level; deburr the end after cutting for accuracy
3. シーリング: Use suitable gaskets (PTFE recommended) for leak-tight installation to maintain IP67 protection
4. Earthing Requirement: Conductive tank body can serve as common electrode; non-conductive tanks require separate common electrode grounding
5. Spacing Requirement: Keep ≥50mm between electrodes and between electrodes and tank wall to avoid signal interference

コア端末の定義

コミッショニングの重要なポイント

1. Electrode Setting: Define corresponding level heights for each electrode (例えば. E1=Low, E2=Medium, E3=High, E4=Ultra-high)
2. 感度調整: Adjust amplifier relay sensitivity to avoid false triggering caused by foam or clinging liquid
3. 機能テスト: Simulate level changes to verify accurate switching action and response time
4. Insulation Check: For non-insulated type, ensure no short circuit between electrodes and tank wall; check insulation integrity for insulated type
5. Environmental Adaptation Test: Verify long-term stability within rated temperature and pressure range
6. 選択ルール & クイックリファレンス

選定ガイドライン

1. Liquid Type: Choose VNY series for conductive liquids; use capacitive or ultrasonic sensors for non-conductive liquids
2. Electrode Quantity: 1=single point, 2=high/low, 3=high/medium/low, 4=four-point full control
3. Electrode Insulation: NS for normal liquids; IS insulated type for viscous wall-adhering media
4. 接続タイプ: NT screw terminal for vibration environments; CB cable type for long-distance installation
5. Mounting Thread: 1 1/2″ for large tanks, 1″ for medium, 1/2″ for small containers
6. 温度 & プレッシャー: VNY for 0–90°C / 10 バー; VPP for higher temperature; special models for higher pressure
7. 航空貨物のコンプライアンス & 認証

航空貨物のコンプライアンス: リチウム電池なし / スーパーキャパシタ. Pure mechanical and metallic structure, IATA DGRクラスに準拠 9, shippable as standard general cargo.

認証:

– CE: IEC準拠 529 ingress protection standard

– RoHS: EU RoHS準拠, 有害な重金属を含まない

– Material Certification: AISI316 stainless steel electrodes meet food-contact grade requirements for food & 飲料業界

環境コンプライアンス: Compliant with REACH regulations for global market access

9. 購入 & 物流情報