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Accessories





TRIPLE ZENER BARRIER FOR LOAD CELLS "ZBA1S"


  TRIPLE ZENER BARRIER FOR LOAD CELLS "ZBA1S"
 

The Zener Barrier ZBA1S is the perfect solution for the connection between a weighing terminal and a weight receiver system in the ATEX ZONE. ZBA1S integrates three barriers in one, protecting the excitation line, signal and sense. This feature makes the installation easier, especially in small spaces. This saves time and money.
Single barrier marking: ATEX II (1)G, II (1)D, I (M1)
Protection: [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I (-20 °C ≤ Tamb ≤ +60 °C)

TECHNICAL FEATURES

  • Equipped with 3 channels for the protection of the Signal line (CN1/CN4), the Excitation line (CN3/CN6) and the Sense line, for improved signal stability.
  • “SLIM” type case, iper-compact, for DIN rail installation.
  • Temperature of usage: -20°C ÷ +60°C.
  • Storage temperature: -25°C ÷ +70°C
  • Rating: 14Vrms differential and 8Vrms through earth for CN3 connector, 20Vrms for the CN1 & CN2
  • Maximum Security Voltage(Um): 250Vrms
  • Maximum Security Current (current interruption capability): 1500A
  • Degree of protection: IP20
  • Excitation, Signal and Sense Marking: ATEX II (1)G, II(1)D, I(M1)
  • Protection: [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I (-20°C ≤ Tamb ≤ +60°C)
  • Please refer to the User Manual for more information.

    NOTE:
  • Can connect up to 4 Load Cell of 350 Ohm.
  • Combined use of one or more Zener Barriers (1) GD [Ex ia], implies that the Atex marking of the set of barriers must be upgraded (2) GD [Ex ib], as written in the EN 60079-14 normative.

KZBA CASE FEATURES

  • Material: ABS
  • Glands: n.4, ATEX certified.
  • Protection for Case + Barrier:
    - ATEX II 3(1) Ex Na [ia Ga] IIC T4 Gc (-20°C ≤ Ta ≤ +50°C) for Gas
    - ATEX II 3(1)D Ex tb [ia Da] IIIC T130°C Dc IP65 (-20°C ≤ Ta ≤ +50°C) for Dust.
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Available versions
 CodeDescription
ZBA1S Intrinsic protection three channel Zener barrier. Specific for connection to load cells, for mounting on DIN rail in a safe area, or in a hazardous-proof case. Marking: ATEX II (1) GD [Ex ia Ga] IIC [Ex ia Da] IIIC.
KZBA ATEX ABS housing kit with Zener Barrier ZBA1S for load cells. For intrinsically safe weighing systems in an explosive zone. Dimensions 180x180x150mm.Can connect up to 4 Load Cell of 350 Ohm. Marking of housing + Zener Barrier ZBA1S: ATEX II 3(1)G Ex nA [ia Ga] IIC T4 Gc (-20°C ≤ Ta ≤ +50°C) for gas, ATEX II 3(1)D Ex tb [ia Da] IIIC T130°C Dc IP65 (-20°C ≤ Ta ≤ +50°C) for dust.
Declaration of ATEX conformity
 CodeDescription
DCATEXMB4 ATEX declaration of the whole for systems with zener barriers. Ex II 2GD IIC T6 T125°C X system, with relative label of whole system, for weight indicator connected to Dini Argeo zener barriers, connected to a mechanical structure with ATEX load cells (each cell must be certified with CCATEX option).
Connection cables
 CodeDescription
LCCB Shielded 6x0,25 mm² cable (suitable for Ex zones). €/m
EXCB6(S6) Shielded, blue, 6x0,22mm² cable, for EX i (2GD) applications. €/m

All the specifications and images can be subject to variations and upgrades without prior notice.
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