AD-4329A High-Precision Weighing Indicator AND

AND AD-4329A High-Precision Weighing Indicator

AD-4329A High-Precision Weighing Indicator

Detailed Description & Specifications

The AD-4329A is a versatile, high-performance weighing indicator engineered for reliability and precision across a wide spectrum of industrial applications. Designed with a robust feature set including advanced data management, flexible connectivity, and superior noise immunity, it is the ideal control center for platform scales, packers, hoppers, checkweighers, and truck scales. Its compliance with OIML Class III standards ensures accuracy for trade-approved applications.

---

Key Features & Capabilities

• Brilliant Vacuum Fluorescent Display (VFD): A high-contrast, 7-digit, 13mm character height display ensures excellent readability in all lighting conditions, from bright sunlight to low-light environments.

• Advanced Data Accumulation: Automatically or manually store and manage cumulative weight data, streamlining inventory and batch totalization processes.

• Integrated Comparator & Batching Functions: Features a built-in comparator with Hi/OK/Lo outputs (available as an option) for checkweighing. Sophisticated set-point control (Near Zero/Prelim/Target/Free Fall) optimizes speed and accuracy for batching operations.

• Multi-Range Flexibility: Supports up to three selectable weighing ranges, allowing for a single unit to handle different capacity scales or optimize resolution for specific tasks.

• Robust Communication & Outputs: Comes standard with both RS-232C and a 20mA current loop interface. Optional outputs include BCD, relay, RS-422/485, and 4-20mA analog for seamless integration with PLCs, printers, and PC systems.

• High Precision & Stability: With a maximum display resolution of 1/20,000 and advanced delta-sigma A/D conversion (16 million internal counts), the AD-4329A delivers exceptional accuracy. It is further protected against RFI/EMI interference.

• Powerful Load Cell Drive: Capable of powering up to 8 x 350Ω load cells or 16 x 800Ω load cells (with optional accessories), making it suitable for large-scale systems like truck scales.

---

Technical Specifications

Model: AD-4329A Weighing Indicator

General Weighing Specifications

• Maximum Display Resolution: 20,000 counts

• A/D Conversion Method: Delta-Sigma Modulation

• A/D Internal Resolution: 16,000,000 counts

• A/D Conversion Rate: Approx. 10 times/second

• Non-Linearity: ±0.005% of Full Scale

• Digital Linearization: 4-point calibration

• Regulatory Compliance: Meets OIML R76 Class III specifications

Electrical Specifications

• Input Sensitivity: 0.15 µV/d (minimum)

• Input Signal Range: -35 mV to +35 mV

• Load Cell Excitation: 5 V DC ±5%, 120 mA

• Load Cell Drive Capacity:

  • Up to 8 units of 350Ω load cells

  • Up to 16 units of 800Ω load cells (with LCC07/LCC11/LCC12 option)

• Zero Temp. Coefficient: ±0.02 µV/°C (typ.), ±0.1 µV/°C (max.)

• Span Temp. Coefficient: ±3 ppm/°C (typ.), ±15 ppm/°C (max.)

• Input Impedance: 10 MΩ or more

• Maximum Input Noise: Less than 0.15 µVp-p

Display & Controls

• Display Type: Vacuum Fluorescent Display (VFD)

• Display Format: 7-digit, 7-segment

• Character Height: 13 mm

• Annunciators: Stable, Zero, Gross, Net, Tare, Accumulation, kg/t, lb

• Keypad Functions: STANDBY/OPERATE, NET/GROSS, PRESET TARE, TARE, ZERO, M+, MODE, PRINT

Physical & Environmental Specifications

• Dimensions (H x W x D): 96 x 192 x 165 mm (DIN Standard)

• Panel Cut-Out Dimensions: 92 x 186 mm

• Net Weight: Approx. 1.8 kg (4.0 lb)

• Operating Temperature: -5°C to 40°C (23°F to 104°F)

• Storage Temperature: -10°C to 70°C (14°F to 158°F)

Power Supply

• Input: 100 – 240V AC, 45 – 65Hz, 30VA

• Note: Preferred voltage rating must be specified at time of order.

Standard Interfaces

• Serial Interface: RS-232C & 20mA Current Loop

---

Optional Configurations

Enhance the functionality of the AD-4329A with the following optional modules:

• AD-4329A-01: BCD Output (Open Collector)

• AD-4329A-02: Comparator Output (Relay Output)

• AD-4329A-03: RS-422/485 Interface

• AD-4329A-07: Analog Output (4-20mA)

---

Standard Accessories

The unit is supplied with the following accessories:

• AC Power Cable (2 meters)

• External Input Plug

• Load Cell Input Plug

• Rubber Feet (4 pcs)

• Capacity Sticker

• Current Loop Output Plug