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7MH4960-2AA01

Series: SIWAREX WP231 Weighing Module Brand: Siemens AG

SIWAREX WP231 Weighing Modules

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Single-channel, legal-for-trade, for NAWI non-automatic weighing instruments (e.g. platform scales or hopper scales) with analog load cells (1–4 mV/V), 1 x LC, 4 × DQ, 4 × DI, 1 × AQ, 1 RS 485, Ethernet port.

Specifications

Brand

Integration in Automation Systems

  • SIMATIC S7-1200
  • Other Systems Via Modbus RTU or ModbusTCP/IP

Communication Interface

  • SIMATIC Bus
  • Ethernet
  • RS-485

Internal Resolution

  • Up to 4 Million Parts

Internal/External Updating Rate

  • 10 ms/100 Hz

Measuring Accuracy

  • EU Type Approval as Non-automatic Weighing Instrument, Trade Class III: 3,000 d ≥ 0.5 μV/e
  • Error Limit According to DIN 1319-1 of Full Scale Value at 20° C ± 10 K (68° F ± 10 K): 0.05 %

Load Cell

  • Full-bridge Strain Gauges in 4-Wire or 6-Wire System

Supply Voltage

  • 4.85 Vdc
  • Auxiliary: 24 Vdc

Permissible Range of the Measurement Signal

  • -21.3 to +21.3 mV With 4 mV/V Sensors)

Maximum Distance of Load Cells

  • 500 m (229.66 ft)

Certifications & Approvals

  • ATEX
  • UL
  • EAC
  • KCC
  • RCM
  • OIML R-76
  • NTEP Class III / III L
  • Design Approval 2009/23/EC (NAWI)
  • EMC

Environmental Protection

  • IP20

Operating Temperature

  • -10° to 55° C (14° to 131° F)

Documentation

Brochure

Catalogs

View Product Series

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