A&D AD-4328 Weighing Indicator

Key Features

• Accumulative data is stored automatically or manually.
• Comparator output for optional relays (HI/OK/LO).
• Setpoint comparison for batching applications (Near Zero/Prelim/Target/Free Fall).
• Powered via AC adaptor or external DC (6~12V) power supply.
• Optional bi-directional RS-232C, RS-422, RS-485 interfaces and BCD, relay, current loop outputs.
• Front panel protected to IP-65.
• Powers up to 6 load cells at 350Ω.
• Gravity Compensation Function ensures accurate weighing without recalibration after transport.
• Standard serial output for printers and external displays.
• 1/10000 displayed count resolution.
• Mountable on panel, column, stand, or desk top.
• External inputs allow remote control of indicator operation.
• Tare weight can be entered via the keyboard (Preset Tare).
• RFI/EMI protected.
• Meets or exceeds OIML Class III specifications.
• An uncased version of the AD-4328 is available.

Specifications

Input

• Input Sensitivity: 0.2µV/d (Min.)
• Input Signal Range: -1mV - +15mV
• Loadcell Excitation: 5V DC ±5%
• Loadcell Drive Capacity: Up to 6 loadcells at 350Ω/loadcell (Max. 90mA)
• Zero Temperature Coefficient: ±(0.2µV+0.0008% of dead load)/°C (typ.)
• Span Temperature Coefficient: +8ppm/°C of reading (typ.)
• Non-Linearity: 0.01% of full scale
• Input Noise: 0.2µVp-p
• Input Impedance: 10MΩ Min.

A/D Conversion

• Method: Integrating dual slope type
• Resolution: 40,000 counts (Max.)
• Rate: Approximately 10 times per second

Display

• Type: 6 digits, 14.2mm LED
• Resolution: 10,000 counts (Max.)
• Minimum Division: 1, 2, 5, 10, 20, 50 selectable
• Maximum Display: 500000
• Under ZERO Indication: '-' minus sign
• Annunciators: ZERO, MD, GROSS, NET
• Keys: PRESET TARE, kg/t or kg/lb, STANDBY/OPERATE, NET/GROSS, PRESET TARE, ZERO, M+, TARE, MODE, PRINT

Power

• Type: DC 9V (AC adaptor or direct input to terminals)

Environmental

• Net Weight: Approximately 0.8kg
• Operating Temperature: -10°C to 40°C
• Storage Temperature: -10°C to 70°C

Physical Dimensions

• Main Unit: 170(W) x 126+19(D) x 130(H) mm (including terminal cover)
• Panel Cut out: 124±0.5 x 162±0.5 mm

Standard Accessories

• Manual
• AC Adaptor

Options

• OP-01: BCD Output (Open Collector)
• OP-02: Comparator Output (Open Collector)
• OP-03: RS-422/485 with Relay Output
• OP-04: RS-232C/Current Loop/Relay Output
• Note: Only one option can be selected. One to be chosen from RS-422 or 485.

Communications and Connectivity

The AD-4328 supports various communication and connectivity options:

• Platform Scale: Connects to Computer Interface (RS-422/485, RS-232C, Current Loop) or PLC (BCD, Open Collector).
• Packing Scale: Relay Output for Near Zero, Prelim, Target, Free Fall.
• Hopper Scale: Relay Output for Near Zero, Prelim, Target, Free Fall.
• Conveyor Base: Can be integrated with weighing systems.
• Check Weigher: Comparator Output (HI/OK/LO).
• External Display: Supports RS-232C, Current Loop.
• External Printer: Supports Relay Output, RS-232C, Current Loop.

Rear Panel View

The rear panel features I/O terminals designed for easy maintenance:

• I/O terminals are screw type.
• Supports AC adaptor or DC power source.
• Allows remote operation of front panel keys.
• Terminal Locations:
  • ① DC input terminals
  • ② Load cell connection terminals
  • ③ AC adaptor connector
  • ④ Standard serial output
  • ⑤ External front panel switch control
  • ⑥ Option installation terminals

Company Information

A&D MERCURY PTY. LTD.

Head Office:
32 Dew Street, THEBARTON, South Australia 5031
Telephone: (08) 8352 3033
Facsimile: (08) 8352 7409

Victorian Office:
Unit 4, Cnr Arden & Lloyd Streets, KENSINGTON, Victoria 3031
Telephone: (03) 9372 1522
Facsimile: (03) 9372 1193

New South Wales Office:
Unit 2, 49 Derby Street, SILVERWATER, New South Wales 2128
Telephone: (02) 9748 4766
Facsimile: (02) 9748 4724

Email: sales@mail.andmercury.com.au

Internet: http://www.andmercury.com.au