Kilotech KBS Series - User Manual

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Summary

KBS Series Repair Overview

Troubleshooting Flowchart

Diagnostic flowchart for KBS series scales, guiding through issue identification and resolution steps.

Calibration Instructions

KBS-C001 Calibration Procedure

Step-by-step guide for calibrating the KBS-C001 1st generation scale.

Technical Service Bulletins

Bulletin Status

Indicates that no technical service bulletins have been issued for the KBS series to date.

Recommended Parts List

KBS Series Parts

List of recommended parts for the KBS series, including descriptions and item numbers.

The KILOTECH KBS series is a first-generation bench scale designed for various weighing applications. This service manual provides comprehensive information for its repair, calibration, and maintenance, ensuring optimal performance and longevity.

Function Description:

The KBS series bench scale is primarily used for accurate weight measurement. It operates in both kilograms (kg) and pounds (lb), offering flexibility for different regional standards and user preferences. The core function involves converting the force exerted on its platform into a digital weight reading displayed to the user. This is achieved through a load cell, which is a transducer that converts force into an electrical signal, and a main PCB (Printed Circuit Board) that processes this signal and drives the display. The scale is designed for general-purpose weighing tasks, suitable for environments requiring reliable and consistent measurements.

Important Technical Specifications:

While specific weight capacities are not detailed for all models, the manual lists load cells for KBS30, KBS60, and KBS150, implying capacities of 30, 60, and 150 units (likely kg or lb, depending on the model configuration). The calibration procedure mentions a displayed value of "16,000 +/- 2000," which likely refers to an internal ADC (Analog-to-Digital Converter) count or a raw signal value from the load cell, indicating the scale's internal resolution before conversion to a user-readable weight. The device utilizes a rechargeable battery for power, suggesting portability or operation in locations without constant access to a power outlet. An adapter is also listed, indicating it can be powered by an external source or charged. The main PCB is a critical component, with different part numbers (851280, 851281, 851282) corresponding to the KBS30, KBS60, and KBS150 models, respectively, implying variations in circuitry or programming tailored to the specific load cell capacity. The display is an LCD (Liquid Crystal Display), which is a common choice for its clarity and low power consumption.

Usage Features:

The KBS series scales are designed for straightforward operation. The user interface includes a MODE key and a ZERO key, which are also utilized during calibration. The TARE key is specifically mentioned for zeroing the display, a crucial function for weighing items in containers by subtracting the container's weight. The scale's ability to display values in both kg and lb enhances its versatility for different users and applications. The calibration process is initiated by pressing and holding any key while powering on the unit, indicating a user-friendly entry into service mode.

Maintenance Features:

The manual emphasizes several key maintenance aspects:

Troubleshooting Flowchart: A detailed flowchart guides users through common issues such as "No power," "Doesn't weigh properly," "Faulty display," and "Unit drifts." This systematic approach helps diagnose problems efficiently.
Battery Management: For "No power" issues, the first step is to "Check / replace batteries," highlighting the importance of battery health for portable operation. A rechargeable battery (part number 851290) is available, indicating that battery replacement is a standard maintenance procedure.
Calibration: The "Calibration Instructions" section is critical for maintaining accuracy. It involves removing the display housing, locating tact switches A (under MODE key) and B (under ZERO key) on the main PCB, entering calibration mode, adjusting an internal value (VR1), zeroing the display with the TARE key, applying a known weight equal to the scale's total capacity, and accepting the span value with key B. This ensures the scale provides accurate readings across its full range.
Component Replacement: The troubleshooting guide and recommended parts list indicate that key components like the main PCB (Printed Circuit Board) and load cell are replaceable. For "Faulty display" or "Unit drifts," replacing the main PCB is a recommended step. For "Doesn't weigh properly," checking and potentially replacing the load cell is advised.
Environmental Check: For "Unit drifts," checking the environment is suggested, implying that external factors such as temperature, drafts, or vibrations can affect scale stability and accuracy.
Technical Service Support: The manual provides a dedicated phone number (1.800.694.4445) for technical service specialists, ensuring professional assistance is available for complex issues or parts inquiries.
Work Instructions and Revisions: The document includes revision numbers (e.g., Rev 00) and work instruction identifiers (e.g., WI-4.19-COV-KBS-001), indicating a structured approach to documentation and potential updates over time.
ISO 9002 Certification: The "ISO 9002 Certified - Certifié" badge on the cover page signifies that the manufacturing and service processes for KILOTECH products, including the KBS series, adhere to international quality management standards, assuring a certain level of quality and reliability in the device and its support.