The W200-C Load is an advanced weighing instrument designed for various industrial applications, offering precise measurement, control, and communication capabilities. It supports a wide range of functionalities, from basic weighing to complex batching processes, and is available in several versions with different ingress protection (IP) ratings and enclosure types.
Function Description:
The W200-C Load serves as a versatile weighing instrument capable of displaying net weight, zero deviation, and stability. It supports multiple units of measure, including kilograms (kg) and grams (g). The device can be configured for semi-automatic tare, preset tare, and semi-automatic zero-setting for small variations. It features a comprehensive menu system for setting system parameters, batching constants, and communication settings.
Key functions include:
- Batching: The instrument can load automatically a settable amount of product on the weighing structure, driving the batching organ (including two-speed) through PRESET and SET contacts. It supports up to 99 settable formulas, batching resume after blackout, automatic fall calculation, autotare at batching start, tolerance error control, precision batching through slow function, consumption storage, and print of batching data.
- Calibration: Both theoretical and real calibration (with sample weights) are supported. Theoretical calibration involves setting the instrument full scale and load cells sensitivity. Real calibration allows for fine-tuning using known sample weights and can be linearized up to five points for enhanced accuracy.
- Zero Setting: The instrument offers tare weight zero setting to compensate for product residues and a zero value manual entry for situations where the weighed structure tare cannot be reset. Automatic zero setting at power-on is also available, resetting the weight if it falls below a set threshold.
- Filtering: A digital filter can be applied to the weight display to increase stability, with adjustable response times.
- Anti-Peak Function: This feature helps to filter out sudden disturbances in weight readings, ensuring stable measurements.
- Alarms: The instrument can be configured to trigger alarms for various conditions, including approval contact, formula not programmed, maximum weight exceeded, minimum weight, no increase in weight, no decrease in weight, fall, and PC not reading batching data.
- Communication: The W200-C supports RS232 and RS485 serial communication for data transmission to PCs, remote displays, and other instruments. It can operate in transmitting or receiving instrument modes, allowing for weight reading via serial port. Modbus-RTU protocol is supported for network communication.
- Keypad and Display Locking: The keypad and/or display can be locked to prevent unauthorized access or changes to settings.
- Data Deletion and Program Selection: The instrument allows for data deletion and selection of various programs, including basic weighing, setpoint management, weight remote display, monoproduct loading/unloading, and multi-product batching.
Important Technical Specifications:
- Power Supply: 12/24 VDC (standard), 115/230 VAC (optional).
- Power Consumption: 5 W (standard), 6 VA (optional).
- Load Cells: Up to eight 350 ohm load cells or sixteen 700 ohm load cells.
- Linearity / Analog Output Linearity: < 0.01% F.S.
- Thermal Drift / Analog Output Thermal Drift: < 0.0005% F.S./°C; < 0.003% F.S./°C.
- A/D Converter: 24 bit (16000000 points).
- Max Divisions: ±999999.
- Measurement Range: ±39 mV.
- Max Sensitivity of Usable Load Cells: ±7 mV/V.
- Max Conversions per Second: 300 conversions/second.
- Display Range: ±999999.
- No. of Decimals / Display Increments: 0÷4 / x 1 x 2 x 5 x 10 x 20 x 50 x 100.
- Digital Filter / Readings per Second: 0.012÷7 s / 5÷300 Hz.
- Relay Logic Outputs: N.5 - max 115 VAC; 150 mA (N. 4 – analog output version).
- Logic Inputs: N. 3 – optoisolated 5 - 24 VDC PNP (N. 2 – analog output version).
- Serial Ports: RS485, RS232.
- Baud Rate: 2400, 4800, 9600, 19200, 38400, 115200.
- Humidity (non condensing): 85%.
- Storage Temperature: -30°C ÷ +80°C.
- Working Temperature: -20°C ÷ +60°C.
- Optoisolated Analog Output (optional): 0÷20 mA; 4÷20 mA (max 300 ohm); 0÷10 V; 0÷5 V; ±10 V; ±5 V (min 10 kohm).
- Enclosure Types:
- W200BOX: IP67 waterproof ABS box version, dimensions 170x140x95 mm.
- W200BOX-EC: IP64 waterproof ABS box version, dimensions 170x140x95 mm, equipped with external selector switch for formula selection.
- W200 IP67: IP67 waterproof polycarbonate box version, dimensions 180x130x77 mm.
- W200 IP64: IP64 waterproof polycarbonate box version, dimensions 180x130x77 mm, equipped with external selector switch for formula selection.
Usage Features:
- User-Friendly Interface: The instrument features a 6-digit semi-alphanumeric display, 14 mm, 7 segments, 8 indicator LEDs, and a 5-key membrane keypad with buzzer for intuitive operation.
- Menu-Driven Configuration: Settings are accessed and modified through a structured menu map, allowing for easy navigation and parameter adjustment. Changes are applied immediately after pressing the ENTER key.
- External Control: Batching can be started by an external contact, offering flexibility in system integration.
- Print Functionality: Batching data, constants, formulas, and consumption reports can be printed, providing detailed records of operations.
- Voltage Selection: The instrument supports changing voltage between 115 VAC and 230 VAC by adjusting internal jumpers.
- Multi-Channel Support: The instrument can be connected to a CLM series intelligent junction box or multi-channel weight transmitter.
Maintenance Features:
- Self-Diagnosis: The instrument displays alarm messages for various errors, aiding in troubleshooting.
- Battery Backup: An internal battery keeps the internal clock active during power failure. It is recommended to leave the instrument on for at least 12 hours to fully charge the battery after long periods of inactivity.
- Installation Guidelines: Detailed recommendations are provided for proper installation of the weighing instrument and load cells, including earthing, cable protection, and mechanical restraints, to ensure optimal performance and longevity.
- Technical Assistance: For complex issues, technical assistance is recommended, especially for operations related to data deletion, program selection, and approval status.
- Firmware Updates: The manual refers to version 1.07, implying the possibility of firmware updates for improved functionality or bug fixes.
- Robust Design: The various IP-rated enclosures (IP67, IP64) ensure protection against dust and water, making the instrument suitable for harsh industrial environments.
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