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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
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In-load dosing function with automatic unloading phase
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RGB backlit LCD display, clearly readable in all lighting conditions
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4 digital inputs for remote START, STOP, and PAUSE commands
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12 digital outputs for fast, medium, and slow dosing speeds, lance control, and error signalling
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High-performance X-Core CPU, ideal for fast and accurate weighing, filling, and dosing processes
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Database with up to 50 formulas
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Fly weight management
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Tolerance control
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Safety tare check at dosing start
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Programmable lance control
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Optional analog output proportional to dosed weight or dosing speed
TECHNICAL FEATURES
Protection:
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Gas: Ex ib [ib Gb] [ia Ga] IIC T4 Gb
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Dust: Ex tb [ib Db] [ia Da] IIIC T135°C Db
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ATEX: II2(2)G(1)G
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ATEX: II2(2)D(1)D
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Ambient temperature (Ta): 0 °C to +50 °C
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High-contrast RGB backlit display with 6 digits, 25 mm height
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Waterproof 17-key keyboard
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AISI 304 stainless steel enclosure with IP65 and IP68 certified protection
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Minimum measurement resolution (internal use): 0.01 µV/d
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4 load cell inputs with selectable operating modes:
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Single scale (with external junction box)
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Metrological approval: 10,000e or multi-range 3 × 3000e @ 0.3 µV/e
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Connection for up to 8 load cells of 350 Ohm
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Direct connection capability to load receptors installed in Zone 0 and Zone 20
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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):
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Via Dini Argeo power supply: 110–230 Vac or 24 Vac / 24 Vdc
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Battery-powered version available on request
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Dimensions: 280 × 143 × 185 mm
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Cable glands: 2 × PG9 fitted as standard, 1 PG supplied loose (not mounted), and provision for 2 additional optional PG9 glands
MAIN CERTIFICATIONS
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EU Type Examination Certificate (EN 45501:2015)
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OIML R76
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EN/IEC 60079-0
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EN/IEC 60079-11
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EN/IEC 60079-5
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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
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Ui: 18 V
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Ri: 214 Ω
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Input resistance: 859 Ω
Electronic relay outputs
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Ui: 18 V
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Pi: 1.75 W
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In: 70 mA
