DFWIECEX-BATCH1 weighing indicator certified by IECEx and ATEX, for Zones 1 and 21, 2 and 22.

The DFWIECEX-BATCH1 weight indicator is the ultimate solution for single-product dosing applications in hazardous areas. It features an RGB backlit display that guides the operator throughout the dosing process and an advanced 3-speed control system (fast, medium, slow) with fully programmable thresholds.
Lance control manages the lifting of the lance automatically. The indicator includes a database with up to 50 memories to store preset dosing targets for quick recall.

HIGHLIGHTS

• In-load dosing function with automatic unloading phase

• RGB backlit LCD display, clearly readable in all lighting conditions

• 4 digital inputs for remote START, STOP, and PAUSE commands

• 12 digital outputs for fast, medium, and slow dosing speeds, lance control, and error signalling

• High-performance X-Core CPU, ideal for fast and accurate weighing, filling, and dosing processes

• Database with up to 50 formulas

• Fly weight management

• Tolerance control

• Safety tare check at dosing start

• Programmable lance control

• Optional analog output proportional to dosed weight or dosing speed

TECHNICAL FEATURES

Protection:

• Gas: Ex ib [ib Gb] [ia Ga] IIC T4 Gb

• Dust: Ex tb [ib Db] [ia Da] IIIC T135°C Db

• ATEX: II2(2)G(1)G

• ATEX: II2(2)D(1)D

• Ambient temperature (Ta): 0 °C to +50 °C

• High-contrast RGB backlit display with 6 digits, 25 mm height

• Waterproof 17-key keyboard

• AISI 304 stainless steel enclosure with IP65 and IP68 certified protection

• Minimum measurement resolution (internal use): 0.01 µV/d

• 4 load cell inputs with selectable operating modes:

  • Single scale (with external junction box)

• Metrological approval: 10,000e or multi-range 3 × 3000e @ 0.3 µV/e

• Connection for up to 8 load cells of 350 Ohm

• Direct connection capability to load receptors installed in Zone 0 and Zone 20

• 1 intrinsically safe RS485 serial port as standard for bidirectional communication with PLCs, PCs, or devices in hazardous areas
  (up to 2 additional RS485 ports available as options)

Power supply options (see options table):

• Via Dini Argeo power supply: 110–230 Vac or 24 Vac / 24 Vdc

• Battery-powered version available on request

• Dimensions: 280 × 143 × 185 mm

• Cable glands: 2 × PG9 fitted as standard, 1 PG supplied loose (not mounted), and provision for 2 additional optional PG9 glands

MAIN CERTIFICATIONS

• EU Type Examination Certificate (EN 45501:2015)

• OIML R76

• EN/IEC 60079-0

• EN/IEC 60079-11

• EN/IEC 60079-5

• EN/IEC 60079-31

Certified according to ATEX Directive 2014/34/EU and compliant with the IECEx certification scheme, Group II, Category 2GD, in accordance with EN/IEC 60079-0, -11, -5, and -31.
IECEx and ATEX certified and approved for legal-for-trade use.

COMMUNICATION INTERFACES

DIGITAL INPUTS / OUTPUTS

Intrinsically safe digital I/O board with 4 inputs and 12 outputs, with the following specifications:

Inputs

• Ui: 18 V

• Ri: 214 Ω

• Input resistance: 859 Ω

Electronic relay outputs

• Ui: 18 V

• Pi: 1.75 W

• In: 70 mA