Cherub WST-2046 Clip-On Tuner (BD/RC/WZ) - Owner's Manual

Introduction

Congratulations on your purchase of the Cherub WST-2046 Clip-On Tuner. This manual provides essential information for using your tuner. Please read it carefully before operation.

Product Overview

The WST-2046 is a portable clip-on tuner designed for easy attachment to musical instruments. Its display can be rotated to various angles for optimal viewing.

Key Features

• Built-in Pickup: Utilizes a buzzer pickup for accurate sound detection.
• Auto Power Off: The device automatically shuts down after 5 minutes of inactivity or no signal to conserve battery.
• Settings Memory: Current settings are saved when the device is powered off.
• Versatile Tuning Modes: Supports Chromatic, Guitar, Bass, Violin, Ukulele C, and Ukulele D tuning scales.
• Note Detection: Displays the detected note and closest string number for easy tuning.

Specifications

• Tuning Scale: Chromatic, Guitar, Bass, Violin, Ukulele C, Ukulele D.
• Tuning Range: A(27.5Hz) – C₆(4186.0Hz)
• A4 Calibration: Adjustable from 430Hz to 450Hz (BD RC models); fixed at 440Hz (WZ model).
• Flat Tuning: Supports flat tuning up to bbb (BD RC models, available in Guitar and Bass modes).
• Tuning Precision: ±1 cent
• Power Source: 3V CR2032 Lithium Battery
• Power Consumption: <12mA
• Dimensions: 50mm (Width) x 36mm (Depth) x 30mm (Height)
• Weight: 32g

Operation Guide

1. Power On/Off: Press and hold the POWER/MODE button for 2 seconds. The tuner will activate to its last setting or default to Chromatic mode on first use.
2. A4 Frequency Adjustment: Briefly press the A4/FLAT button to set the A4 reference tone frequency between 430Hz and 450Hz (BD RC models only).
3. Flat Tuning Setup: Press and hold the A4/FLAT button for 2 seconds to enable flat tuning (bbb). This function is available in Guitar and Bass modes on BD RC models.
4. Mode Selection: Briefly press the POWER/MODE button to cycle through the available tuning modes: C (Chromatic), G (Guitar), B (Bass), V (Violin), U-C (Ukulele C), U-D (Ukulele D).
5. Tuning Your Instrument: Play a single note on your instrument. The display will show the closest note name and string number. Adjust your instrument's tuning until the correct note is displayed on the LCD.

Battery Installation and Replacement

When the LCD display becomes dim, it is time to replace the battery. Follow these steps:

1. Open the battery compartment cover.
2. Ensure correct battery polarity: insert the 3V CR2032 lithium battery with the positive terminal (➕) facing up and the negative terminal (➖) facing down.
3. Close the battery compartment cover securely.
4. For long-term storage, it is recommended to remove the battery.

Precautions

• Avoid using the tuner in environments with extreme temperatures (high heat, freezing cold) or high humidity.
• Do not expose the tuner to direct sunlight for extended periods.
• Do not attempt to disassemble or repair the tuner yourself.
• Keep this manual for future reference.

Quality Assurance and Service

Cherub Technology is dedicated to providing high-quality products and excellent customer service.

• Return/Exchange Policy: Within one month of purchase, if the product experiences non-human-induced performance issues and its appearance and packaging are intact, it may be exchanged at the point of purchase. A valid sales receipt or warranty card is required.
• Warranty Service: The product is covered by a one-year warranty for free repair of non-human-induced defects from the date of purchase. For issues arising after one year or due to human factors or force majeure, paid repair services will be provided.
• Customer Support: For inquiries or assistance, please contact our service hotline at 400-990-9866.

Environmental Compliance (RoHS)

This section details the presence of hazardous substances in Cherub products manufactured from March 1, 2007, onwards, ensuring compliance with environmental regulations.

Environmental Use Period: The [♻️] symbol indicates the environmental protection use period for electronic information products sold in China. It signifies that hazardous substances within the product will not leak or cause environmental pollution or harm to human health or property during the specified period, provided the product is used correctly according to the manual.

Legend:

• O: Indicates the hazardous substance content in all homogeneous materials of this component is below the limit specified in SJ/T11363-2006.
• X: Indicates the hazardous substance content in at least one homogeneous material of this component exceeds the limit specified in SJ/T11363-2006. This is due to the current lack of suitable substitutes based on existing technology.

Regulatory Compliance

FCC Regulation Warning (for U.S.A.)

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

CE Mark for European Harmonized Standards

The CE Mark [??] indicates that the product is in full conformity with the harmonized standards EN 61000-6-3:2007+A1:2011 & EN 61000-6-1:2007 under the Council Directive 2004/108/EC on Electromagnetic Compatibility.

Accessories

• Owner's Manual
• 3V (CR2032) Lithium Battery