The BDE-2007 is a weighing indicator and controller designed for various industrial weighing applications. It comes with the indicator unit, an accessory pack, and a manual.

Function Description

The BDE-2007 primarily functions as a weighing indicator, displaying weight measurements, and as a controller for batching operations. It supports both normal weighing and loss-in-weight batching modes, with options for customer-programmed or built-in automatic programs. The device can be integrated into a system via serial interfaces (RS-232C, RS-485) and offers analog output for control purposes. It also includes features for system checks, calibration, and accumulation of weight data.

Important Technical Specifications

General:

Power Requirements: DC 12V or 24V ±10%, 400mA.
Net Weight: 0.4 kg.
Operation Temperature: -10℃ to 45℃.
Maximum Physical Dimensions: 160 (D) x 99 (W) x 49 (H) mm.
Humidity: 85% (non-condensing).

Analog Input and A/D Conversion:

Input Sensitivity: 0.12 µV/D or above.
ZERO Adjustment Range: 0 ~ 20mV.
Load Cell Excitation: DC5V ±5%, 120mA, with remote sensing. Can connect up to 8 load cells of 350Ω.
Non-Linearity: 0.01% F.S.
A/D Conversion Method: ΔΣ.
A/D Resolution: 1/1,000,000.
A/D Conversion Rate: 120 Times/Sec.
Max. Load Cell Input Voltage: 20mV.
ZERO Temperature Compensation: ±(0.2 µV + 0.001% of Dead Load)/℃ TYP.
SPAN Temperature Compensation: ±0.001% / ℃ TYP.
Max. Resolution: 1/30,000.

Display:

6-digit display for positive values.
Weight indication in kg, t, or lb.
Status indicators for ZERO, M.D. (unstable), NET, TARED.
Keypad for MODE, ZERO, TARE, G/N functions.
DC Voltage low indicator.

Digital Filter (F003):

Offers 7 stages of filtering from "No stage Weak" to "7th stage Strong" to adjust for environment vibration and response speed.

Motion Detection (F005):

Settings for stable operation or various sensitivity levels (e.g., 0.5 SEC 1 DIV to 1 SEC 8 DIV).

Automatic ZERO Tracking Compensation (F006):

Options from OFF to 2 SEC 4 DIV for automatic zero adjustment.

ZERO & TARE keys Availability (F007):

Keys can always work or only when the display is stable.

TARE key Availability (F008):

TARE key can always work or not work if GROSS is negative.

Accumulation Availability (F009):

Options for OFF, Stable, Manual, or Control Input (Modbus) accumulation.

Batching Modes (F101):

Customer Programmed Control Mode: Normal Batching (F101=1) and Loss-in-Weight Batching (F101=2).
Built-in Automatic Program Mode: Normal Batching (F101=3) and Loss-in-Weight Batching (F101=4).
Multiple-Ingredient Batching (F101=5).

Timer-Comparator Inhibitor (F102):

Set between 0.0 to 2.0 Sec (initial 0.0 Sec), applicable to batching modes 3 and 4.

Timer-Finish Signal (F103):

Set between 0.0 to 9.9 Sec (initial 0.0 Sec).

Pulse Width of Finish Signal (F104):

Set between 0.0 to 2.0 Sec (initial 0.5 Sec). Stable at 0.0 Sec for F101 settings 3 or 4.

Output 8 (F105):

Indicates Unstable (0) or Error (1).

Input by (Batch start/stop) (F106):

Panel key, BCD Input, or Serial Input/Modbus.

Memory Automatic Free Fall Compensation (F108):

Yes or Not Memory.

Serial Interface (OP-02):

EIA-RS-232C 12V: Half Duplex, Asynchronous Transmission. Baud Rates: 1200, 2400, 4800, 9600, 19200BPS. Data Bits: 8 or 7. Parity: non-parity, odd/even. Stop Bit: 1. Output Code: ASCII.
EIA-RS-485: Half Duplex, Asynchronous Transmission. Baud Rates: 2400BPS, 4800BPS, 9600BPS, 19200BPS, 38400BPS. Data Bits: 8 or 7. Parity: non-parity, odd/even. Stop Bit: 1. Output Code: ASCII.

Analog Output (OP-05):

Output Data (F500): 4~20 mA or 0~+10 V.
Output Mode (F501): Same as display, GROSS Weight, NET Weight.
Loss-in-weight Absolute Value (F502): Not read or BDI-2001B reads Absolute Value.
Output current when display ZERO (F503): 0.0 through 99.9 (initial 4.0).
Output current at Full Capacity (F504): 0.0 through 9.99 (initial 20.0).
Range: 4~20mA (possible: 2~22mA) or 0~+10V (possible: -1.25~11.25V).
Resolution: Min. 1/3000.
Temperature Coefficient: ±(0.015% / Cof rdg + 0.01mA) / ℃.
Max. Resistance Load: 500Ω (for 4-20mA) or 5KΩ (for 0-10V).

Relay Control Interface (OP-08):

Power: Standard DC12 from outside.
Input (IN): 8 pins, Input Common Pin: COM1.
Output (OUT): 8 pins, Type: for RELAY. Max. Load: 250VAC, 30VDC, 3A. Output Common Pin: COM2. RELAY durance: About 100,000 Times. LED light ON when work.
SSR Type: Max. Load: 24~280VAC, 3A (Only for AC).

Usage Features

Installation and Wiring:

Requires identification of input electric voltage (DC 12V or DC 24V) before connection.
Operates within 0℃ ~ 45℃; avoid direct sunlight.
Recommends isolated cables for load cell signals and separation from power/control I/O cables to prevent interference.
Suggests using an Electric Power Supply Stabilizer for unstable power or interference signals.
Load cell connection uses a six-wire cable with shield. For short distances (within 5 meters), a 4-wire cable with shield can be used by jumpering screws 1&2 and 3&4.
Analog output and input/output signals are sensitive to electrical noise; avoid binding these cables together or with AC power cables.
A jumper (S1) near the transformer needs a short-circuit pin inserted to the available side.

Operation Modes (3-3-2 Operation Modes):

Pressing the MODE key for more than 2 seconds cycles through:
- MODE0 (No light): Normal Weight display mode.
- MODE1 (Red light): Batch operation mode.
- MODE2 (Green Light): Set point and Accumulation Mode.
- MODE3 (Orange light): Not In Use.

System Check (4-1 System Check):

A comprehensive check procedure after installation or changes, including:
- Power OFF, ensure SET switch is OFF.
- Power ON, press MODE, then ZERO for >2 seconds to display F-CSET→FUNC.
- Press TARE to show CHECK.
- Press MODE to check 7 Segment LEDs.
- Slide Set 1 ON, then press MODE to check MEMORY (EEPROM) for I-0 (system error).
- Check Input/Output (I-O) by short-circuiting pins on the 25-Pin D output panel.
- Check keypad (KEY 01~KEY 4).
- Finish by sliding SET OFF and pressing MODE with ZERO for 1 second to return to normal mode.

Functions (4-2 Functions):

Access function settings (F-CSET→FUNC) by pressing MODE with ZERO for >2 seconds.
Navigate through F000, F200, F300, F400, F500 using TARE or G/N keys.
Enter categories by pressing MODE.
Exit function settings by pressing ZERO for >2 seconds.

Calibration (4-3 Calibration):

A step-by-step process for setting minimum division, decimal point, maximum capacity, ZERO adjust, and SPAN calibration.
Minimum Division: Set using +/- keys (01, 02, 05).
Decimal Point: Set using +/- keys (01, 02, 05).
Maximum Capacity: Set using < or +/- keys (01, 02, 05).
ZERO Adjust: Clear weighing device, press MODE.
SPAN Calibration: Place calibration mass, input weight value using < or +/- keys, press MODE.
Includes a list of calibration errors (C.Err 1 to C.Err 12) with troubleshooting guidance (e.g., resolution exceeds limit, load cell output too large/small, incorrect mass entry, reversed signal pins).

System Initialize (4-4 System Initialize):

Procedure to initialize the system: Power OFF, slide SET 1 ON, screen shows CAL, press TARE until init, press MODE, screen shows NO, press + key to show YES, press MODE to confirm END, slide SET OFF.

Accumulation (4-5 Accumulation):

Display Accumulation: In MODE 2, press TARE to show total count, press TARE again for accumulation.
Clear Accumulation: Press TARE for >2 seconds to show CLR A.C., press MODE to clear.

Set Points (5-1 SET POINTS):

Allows setting of Final, SP1, SP2, FREE, Hi, and Lo values using +/-/< keys and confirming with MODE.

Batching Modes (5-2 BATCHING MODES):

Detailed operational sequences for Normal Batching and Loss-in-Weight Batching, covering steps from hopper empty to next batching event, including signal outputs (SP1, SP2, FREE, ZERO Band, Finish) and inputs (TARE, Start, Abort).

Maintenance Features

System Check:

The system check procedure (4-1) serves as a diagnostic tool to locate unexplained system errors after installation, moving the device, or connecting/disconnecting attachments.

Calibration Errors:

The manual provides a comprehensive list of calibration errors (C.Err 1 to C.Err 12) with specific remedies, such as adjusting resolution, adding resistors, checking load cell connections, and verifying entered values. This aids in diagnosing and correcting calibration issues.

Error Messages (MODBUS):

MODBUS communication includes error codes (E01-E05) for command format, data, acceptance, execution, and busy status, facilitating troubleshooting of serial communication.

Power Supply Stabilization:

Recommends utilizing an Electric Power Supply Stabilizer if the electric power supply is not stable or if interference signals exist, to prevent uncertain actuation, reaction, or damage.

Cable Management:

Emphasizes using isolated cables for load cell signals and separating them from power/control I/O cables to minimize interference and ensure reliable operation. This proactive measure helps in maintaining signal integrity and preventing issues.

BDE BDE-2007 - Page 25

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