Analogue Instrument For Truck Scale

Basic Functions
◆ high-precision analog-to-digital conversion, processing signals within −16 mV to 18 mV
◆ High accuracy and consistency; recalibration unnecessary when replacing meters
◆ DC interface features reverse-connection and short-circuit protection
◆ Strong anti-interference capability, suitable for diverse environments
◆ AC/DC dual power supply; includes standard battery
◆ 7-digit 0.8-inch LED display with 3-level battery indicator
◆ Adjustable zero-tracking range and zero-setting range (power-on/manual)
◆ Two-point linear correction; dual compensation calibration methods
◆ Large storage capacity: 1,001 sets of weighing records, 1,000 vehicle IDs/tare weights, 201 cargo IDs
◆ Supports printing landscape/portrait weighbills and multiple statistical reports
◆ Equipped with RS232 port (optional RS422/RS485), current loop large-screen interface, standard parallel printer port, and compatible with specified thermal micro-printers

Technical Parameters
◆ Conversion principle:  ∑ - Δ A/D
◆ Input signal range: −16 mV to 18 mV
◆ Conversion speed: 10 times/sec
◆ A/D resolution: 1,000,000 counts
◆ Bridge supply: DC 5V; supports 8×350Ω or 16×700Ω sensors
◆ Sensor connection: 6-wire system with long-line automatic compensation
◆ Division value: Selectable (1/2/5/10/20/50/100)
◆ Clock: Displays Y/M/D H:M:S; automatic leap year/month adjustment

Large Screen Display Interface
◆ Transmission: Current loop / RS232 signal
◆ Baud rate: 600
◆ Transmission distance: ≤30m

Serial Communication Interface
◆ Transmission: RS232C/RS422 (optional)/RS485 (optional)
◆ Baud rate: Selectable (600/1200/2400/4800/9600)
◆ Transmission distance: RS232 ≤30m; RS422/RS485 ≤1200m

Printer Interface
◆ Standard parallel output interface
◆ Built-in micro-printer (A9+P)

Data Storage
◆ Stores 1,000 vehicle IDs/tare weights, 201 cargo IDs, and 1,001 sets of weighing records

Power Supply
◆ AC: 220V (−15% to +10%); 50Hz (±2%)
◆ DC: External 6V/10Ah rechargeable battery