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NTEP - National Conference on Weights and Measures

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Made in USA

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Group Four Transducers Inc

GDAD 141.1 DIN-Rail/TS35 Digital Amplifier

The Digital Amplifier, GDAD141.1 is a stand-alone device for DIN-rail mounting (TS35). It is an all-in-one device for non-automatic and automatic weighing, filling or loss-in-weigh operations. The standard device includes all the communication facilities needed for industrial weighing, control and registration.

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  • Weighing mode, Input:
    • Drives up to 6 pcs 350 ohm Load cells.
    • External resolution ±200 000 increments at ±2mV/V input.
    • Output update rate 1-600 upd./sec.
    • Bandwidth 0,2-20Hz.
    • OIML R-76 Class III: 10000e; e=0.25 μV/VSI.
  • Input/Outputs, standard:
    • Analogue current output.
    • Analogue voltage output.
    • Triple logic output.
    • Dual logic input.
    • Ethernet TCP/IP, selection of protocols.
    • RS485 full duplex.
  • Built in special programs:
    • Check-weighing.
    • Dozing and filling of bulk goods (pending).
    • Loss-in-weigh applications (pending).
  • Features:
    • Android App for remote set-up and calibration via a LAN (Wi-Fi or Blue Tooth).
    • Six digit display and keyboard for direct set-up, calibration and operation.
    • Advanced digital filter performance (FIR or IIR etc.).
    • Load cell (mV/V) calibration.
    • PC programme (Buzzard DOP) is available for set-up,calibration and process analysing.


  • Non-automatic and automatic weighing, filling or loss-in-weigh operations.
  • Analog current- and voltage output, Ethernet, RS485 and logic I/O’s for direct control of valves or bars and simple remote operations.