GS300

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GS300

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Description

The GS300 weight indicator represents the state of the art for weighing in environments with a high risk of explosion. Thanks to the RGB backlit display, to the powerful processor, and above all to the main interfaces available, all intrinsically safe, the GS300 allows the integration of weighing within production processes, directly in hazardous areas, driving solenoid valves and communicating with PLCs and other devices. IECEx and ATEX certified and approved for legal-for-trade use.

Highlights

  • CD display with RGB backlight
  • State-of-the-art, high-speed X-Core CPU ideal for handling fast and accurate weighing, filling or dosing processes
  • Comprehensive range of industrial interfaces, at your choice:
    • Intrinsically safe digital I\O
    • Intrinsically safe analog output
    • Up to 3 intrinsically safe bi-directional RS485 serial ports
    • Bluetooth

NOTE: All of the above interfaces are certified for use in hazardous areas

Features

  • Protection:
    • for Gas: Ex ib [ib Gb] [ia Ga] IIC T4 Gb
    • for dust: Ex tb [ib Db] [ia Da] IIIC T135°C Db
    • ATEX: II2(2)G(1)G
    • ATEX: II2(2)D(1)D
    • Ta 0°C / +50°C
  • High contrast RGB backlit display, with 6 digits of 25mm. Brightness adjustable from keyboard.
  • 17-key waterproof keyboard
  • AISI304 stainless steel casing, with IP65 and IP68 certified protections.
  • Minimum measurement range (internal use): 0.01 μV/d
  • 4 load cell inputs, with selectable operating mode:
    • Single scale (use of only one input)
    • 4-channel digital junction box (use of multiple load cell inputs)
  • Metrological approval: 10,000e or multi range 3x3000e @ 0.3μV/e.
  • Connection up to 8 load cells of 350Ohm.
  • Possibility of direct connection to load receptor installed in Zone 0 and 20.
  • 1 Intrinsically safe RS485 serial port as standard, for two-way communication with PLCs, PCs or devices in explosive zones.
  • Power supply of your choice (see options table):
    • Through Gedge power supply, 110-230 Vac or 24 Vac – 24 Vdc
    • Through Gedge external battery, in stainless steel, with autonomy of about 40 h
      (Connection/disconnection directly in explosive zone and charging in safe area)

NOTE: Autonomy may be reduced depending on load reception system, connected communication accessories, and backlight configuration.

  • Dimensions: 280x143x185 mm.
  • Available cable glands: 2 x PG9 as standard, 1 PG supplied (not mounted) and setup for a further 2 optional PG9s.

 

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
  • Certification according to ATEX directive 2014/34/EU and in compliance with IECEx certification scheme, group II category 2GD according to EN/IEC 60079-0, EN/IEC 60079-11, EN/IEC 60079-5, EN/IEC 60079-31.
  • EXDC: ATEX certification of assembly for GS300

Specifications

Load Cell6-wire strain gauge
Signal Input0-4.5mV/V (+/- 45mv trade, +/- 100mv non-trade)
Power Supply85-265V AC 50/60Hz or 12-24V DC
Display1 x 6 digit (20mm), 7 segment numeric LCD. IP65 dust/splash proof when panel mounted.18 buttons, 4 set-point indicator LED’s + 1 NET/GROSS indication.Range/interval indicator, 60mm x 10mm LCD alphanumeric matrix.
Panel Mount CaseH:90mm x W:184mm x D:133mm Panel cutout: 186mm x 92mm
Relay Outputs1 standard, 4 optional programmable 5A form A relays (3A 240V AC max or 3A 30V DC max).Includes hysteresis, make delay and enabling of LCD annunciators for alarms and relay status indication.
Analogue Output1 x isolated 16-bit 4-20mA and 0-10V output (Output program mable over any range within the full scale range of the controller)
Serial Port3 x Isolated RS232 or RS485 serial output (Modes: ASCII, Modbus/ RTU slave, Gedge C1-5.Data rates: 2400, 4800, 9600, 19.2 baud. Parity: Odd/even/none, all serial ports programmable)
Remote Inputs5 x Programmable inputs (zero, units, tare, peak, peak reset, valley, valley reset, plus more)
Optional OutputsEthernet (tcp/ip, Modbus RCU) Devicenet USB
Excitation Voltage10V DC supplied by controller (powers up to 16 x 700Ω load cells TRADE)
Sampling RateUp to 50Hz Selectable
Resolution24-bit (16,777,216 internal counts)
Accuracy0.005% of reading
Temperature DriftTypically 3ppm/°C
Display ResolutionSelectable (1,2,5,10,20,50,100)
Operating ApplicationsGeneral weighing Batching (GS600B) Weighbridge Controller Check weighing

Communication Interfaces - Options

OPTIONAL DIGITAL INPUTS/OUTPUTS:

  • Intrinsically safe 4-input, 4-output digital card with the following specifications:
    • Inputs
      • Ui: 18 V
      • Ri: 214 Ω
      • R input: 859 Ω
    • Electronic relay outputs
      • Ui: 18 V
      • Pi: 1,75 W
      • In: 70 mA
  • Intrinsically safe power supply terminal, for piloting devices in ATEX zone or push-button panel. Output voltage 6V, max current 300mA.
    NOTE: by using the available power supply terminal, it is possible to manage the push button panel code in a direct way, even in a safe area, without protection barriers.

OPTIONAL ANALOG OUTPUT:

  • Intrinsically safe analog output, programmable at 0…10Vdc, 0…20mA or 4…20mA.
    NOTE: It is possible to transmit the signal directly to the safe area using the intrinsically safe protective barrier code for analog output in 0…20mA (or 4…20mA) configuration.

The analogue output of the GS300 is an active analogue output, which is why it must not be powered. The resistance of analogue input shall be:

  • If the output signal is in voltage: Rmin=1K
  • If the output signal is in current: Rmax=300ohm

S485 SERIAL PORT

  • 2 Optional intrinsically safe RS485 serial ports for communication with repeaters and other devices.
    NOTE: it is possible to transmit data directly to the safe area using the protective barrier code

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