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Daihatsu Infinearth Device / Instrument

Oil Mist Detector MD-SX

Daihatsu MD-SX crankcase oil mist detector for low-, medium- and high-speed engines; up to 16 points, light-scattering detection 0–2.0 mg/L, type-approved by NK, LR, DNV, BV, ABS, KR, CR, CCS and RINA.

Description

The Oil Mist Detector MD-SX from Daihatsu Infinearth continuously monitors oil mist concentration in the engine crankcase to give early warning of serious engine damage, such as bearing overheating, on low-speed as well as medium- and high-speed engines. It consists of sensors mounted on the engine and a controller.

Key features

  • Natural diffusion sampling – no suction mechanism, drive air or piping required
  • Light-scattering detection for compact design, reliability and easy maintenance
  • Compact MD-SX-C sensor; explosion-proof MD-SX-EX sensor for gas engines
  • Up to 16 detection points, or 8 points x 2 engines (subject to class requirements)
  • Alarm and external signal output when mist concentration exceeds the set value

Technical data

  • Detection range: 0–2.0 mg/L
  • Detection: continuous, response time 1 second or less for 16 points
  • Outputs per engine: PRE ALARM and HIGH ALARM; one SYSTEM FAILURE output
  • Contacts: volt-free changeover, AC125V-0.4A / DC30V-2A (resistive load)
  • Power: sensor supplied from controller (60 mA per unit); controller DC24V (+30 to -25%)
  • Sensor mounting: G 3/4 thread; protection IP 55; sensor weight approx. 400 g
  • Controller weight: approx. 5.0 kg (wall-mount gland type), 5.6 kg (wall-mount coaming type), 5.8 kg (panel mount)

Approvals

  • Class type approvals: NK, LR, DNV, BV, ABS, KR, CR, CCS, RINA
  • CE marking
  • MD-SX-EX: ATEX DEKRA 21ATEX0029 II 3/- G Ex ic IIA T1 Gc

Specifications

形式 MD-SX-C / MD-SX-EX センサ MD-SXセンサ （従来品） MD-SXコントローラ
機能 オイルミスト濃度検出・ミストレベル信号出力 ミストレベル表示・警報監視
検出点数 / 接続点数 1点 / 1ユニット 最大16点 (8点×機関2台も可)
ミスト導入・検出方式 自然拡散・光散乱方式
ミスト検出濃度 0～2.0mg/L
検出間隔 連続 (応答時間：1秒以下 / 16点)
表示 LED 1点： POWER (緑) PRE ALARM (赤点滅) HIGH ALARM (赤点灯) FAILURE (橙) LED 3点： POWER (緑) ALARM (赤) PRE ALARM：点滅HIGH ALARM：点灯 FAILURE (橙) ミストレベル3色LEDバーグラフ表示 LED 4点：RUN、PRE ALARM、HIGH ALARM、SYSTEM FAILURE LCD
コントローラ接点出力 警報出力2点(機関毎)：PRE ALARM、HIGH ALARM 装置故障出力1点：SYSTEM FAILURE
コントローラ接点仕様 無電圧C接点出力、接点容量：AC125V-0.4A / DC30V-2A (抵抗負荷)
電源 コントローラより給電 DC24V (+30～-25%)
消費電流 (最大) 60mA / 1ユニット 1.5A (内部消費：0.5A、センサ給電：1.0A)
取付 ネジサイズ G 3/4 壁取付け、パネル取付け
保護等級 IP 55 IP 55
質量 約400g 約460g 約 5.0kg (壁取付グランドタイプ) 約 5.6kg (壁取付コーミングタイプ) 約 5.8kg (パネル取付けタイプ)
塗装色 マンセル N1.0 (黒) マンセル N1.0 (黒)

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