Arrester

Arrester NZR-7B

An arrester protects measuring instruments and transducers from induced lighting. In lighting-prone areas, the induced voltage of lighting traveling through the cables of measuring instruments or switch boxes can damage instruments and transducers. When placing measuring instruments and transducers, connection of NZR-7B/NZ-7C on cabling between an instrument and a switch box or NZ-6B on cabling between a transducer and switch box will protect the instrument and transducer by allowing induced current to pass to the ground.

Arrester NZR-7B
Features
  • While a measuring instrument is on standaby, NZR-7B automatically separates the circuit between all instruments with a high-voltage relay to block induced current
  • Either soldering or NDIS plug is possible for cable connection
  • Specifications

    Type NZR-7B
    Applicable instruments Data logger: TDS-630, TDS-540, TDS-530
    Switching Box: ASW-50C, ASW-30C, SSW-50D
    Surge resistance (8/20µs)
    Between bridges: 442A between bridge
    Between bridge and ground: 10kA
    Between F and ground: 10kA
    Between G and ground: 10kA
    Dimensions 290 (W) x 64 (H) x 101 (D) mm
    Weight Approx. 1.4kg

Arrester NZ-7C

An arrester protects measuring instruments and transducers from induced lighting. In lighting-prone areas, the induced voltage of lighting traveling through the cables of measuring instruments or switch boxes can damage instruments and transducers. When placing measuring instruments and transducers, connection of NZR-7B/NZ-7C on cabling between an instrument and a switch box or NZ-6B on cabling between a transducer and switch box will protect the instrument and transducer by allowing induced current to pass to the ground.

Arrester NZ-7C
Features
  • Either soldering or NDIS plug is possible for cable connection
  • Contains a commercial power supply (built-in varistor) terminal, allowing power supply for a switch box to be connected easily
  • Specifications

    Type NZ-7C
    Applicable instruments Data logger: TDS-630, TDS-540, TDS-530
    Switching Box: ASW-50C, ASW-30C, SSW-50D
    Surge resistance (8/20µs)
    Between bridges: 442A
    Between bridge and ground: 10kA
    Between F and ground: 442A
    Between G and ground: 442A
    Dimensions 290 (W) x 62(H) x 101 (D) mm
    Weight Approx. 1.3kg

Arrester NZ-6B

An arrester protects measuring instruments and transducers from induced lighting. In lighting-prone areas, the induced voltage of lighting traveling through the cables of measuring instruments or switch boxes can damage instruments and transducers. When placing measuring instruments and transducers, connection of NZR-7B/NZ-7C on cabling between an instrument and a switch box or NZ-6B on cabling between a transducer and switch box will protect the instrument and transducer by allowing induced current to pass to the ground.

Arrester NZ-6B
Features
  • Large discharge capacity
  • Equalized discharge circuit
  • Fully waterproof
  • Applicable to KM transducers with relative temperature measurement function
  • Accommodates input common 2-point sensor (2-axis inclinometer)
  • Specification

    Type NZ-6B
    Applicable sensor Strain gauge
    Quarter Bridge 3-wire,
    Half Bridge,
    Full Bridge (including transducer)
    Full bridge + Quarter Bridge 3-wire (transducer with rerative temperature measurement function)
    Full bridge + Thermocouple
    2-axial transducer having common input (2-axial inclinometer)
    Surge current resistance 10kA (8/20µs)
    Dimensions ø24mm, Length 225mm
    Weight 230g

Thunder proof for TML-NET NNZ-2A

Protects network measuring system TML-NET from induced lighting. In lighting-prone areas, the induced voltage of lighting traveling through the cables of measuring instruments or network modules can damage network drivers and network modules on the network. When this unit is connected at both ends of the extended network line, it automatically separates the network line when instruments enter standby, to block induced current on the line from lighting and protect networked drivers and modules.

Thunder proof for TML-NET NNZ-2A
Features
  • Shuts off network line automatically during measurement standby status to avoid induced current
  • Power is supplied from network line
  • Monitors voltage of network line and current of network modules, and shuts off immediately if abnormal condition occurs
  • Specifications

    Type NNZ-2A
    Surge tolerance 100A (8/20µs impulse)
    Available number for one system NNZ-2A: up to 10
    Low-comsumption network module: up to 100
    Rated power supply voltage DC18 to 24V
    Display function Drop of voltage in the network line
    Over current of network module (Shuts off the network modules at over current)
    Environment −20 to +60℃ 85%RH or less (no condensation)
    Dimensions 50 (W) x 28 (H) x 100 (D) mm (except projecting parts)
    Weight Approx. 120g