1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Grothe Croma 43170 Electronic Gong. Please read this manual carefully before installation and use to ensure proper function and safety. The Grothe Croma 43170 is an electronic gong featuring 17 distinct melodies and a robust design for reliable performance.
2. Safety Information
WARNING: Electrical work must be carried out exclusively by specialized electricians or under their direct supervision and guidance. Improper installation can lead to electric shock, fire, or damage to the device.
- Always disconnect power before performing any installation or maintenance.
- Ensure all connections are secure and comply with local electrical codes.
- Do not expose the device to moisture or extreme temperatures.
- Keep out of reach of children.
3. Product Overview
The Grothe Croma 43170 Electronic Gong is designed for use as a doorbell or signal device. It offers flexibility in power supply and a selection of melodies.
Key Features:
- 17 selectable melodies.
- 2-fold call distinction.
- Flexible power options: 4x 1.5V batteries or 8-12V AC/DC.
- Adjustable volume.
- Durable plastic housing.
Figure 1: Front view of the Grothe Croma 43170 Electronic Gong, silver and grey in color.
4. Setup and Installation
The Grothe Croma 43170 can be powered by batteries or an external AC/DC power supply. Choose the method that best suits your installation.
4.1 Power Supply Options
- Battery Operation: Insert four (4) 1.5V C-type (LR14) batteries into the battery compartment. Ensure correct polarity.
- External Power Supply: Connect an 8-12V AC or DC power source to the designated terminals.
4.2 Wiring Connections
For connecting the doorbell button:
- Open the front cover of the gong unit.
- Locate the terminals labeled C1 and V.
- Connect the two wires from your doorbell button to these terminals.
- If the gong does not sound when the button is pressed, try swapping the two wires connected to C1 and V.
- Ensure all connections are tight and secure.
Note: For optimal battery life when using an external transformer, consider wiring the system such that the transformer only supplies power when the doorbell button is pressed, to minimize standby current.
5. Operating Instructions
5.1 Melody Selection
The gong offers 17 distinct melodies. To select a melody:
- Locate the T2 button inside the unit (typically accessible after opening the front cover).
- Press the T2 button repeatedly to cycle through the available melodies.
- The last melody heard will be set as the active tone. There is no visual indicator for the currently selected tone, so you will need to listen as you cycle through.
5.2 Volume Adjustment
The volume of the gong can be adjusted:
- Open the front cover of the gong unit.
- Locate the small adjustment wheel or screw (often requiring a small screwdriver) inside the unit.
- Turn the wheel/screw to increase or decrease the volume to your desired level.
5.3 Turning On/Off
To temporarily silence or reactivate the gong:
- To turn off: Press and hold the T2 button for approximately 3 seconds.
- To turn on: Briefly press the T2 button again.
6. Maintenance
The Grothe Croma 43170 Electronic Gong requires minimal maintenance.
- Cleaning: Wipe the exterior with a soft, dry cloth. Do not use abrasive cleaners or solvents.
- Battery Replacement: If the gong's volume decreases significantly or it stops functioning, replace all four (4) 1.5V C-type (LR14) batteries. Ensure correct polarity when inserting new batteries.
- Inspection: Periodically check wiring connections for any signs of wear or looseness.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Gong does not sound. |
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| Sound is too low. |
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| Difficulty selecting a specific melody. |
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8. Specifications
- Model Number: 43170
- Manufacturer: Grothe
- Dimensions (L x W x H): 19.1 x 16.3 x 5.1 cm (7.5 x 6.4 x 2.0 inches)
- Weight: Approximately 399.16 grams (0.88 lbs)
- Color: Silver/Grey
- Material: Plastic
- Power Type: Battery-powered or Wired
- Battery Requirement: 4 x 1.5V C-type (LR14) batteries (not included)
- External Voltage: 8-12V AC/DC
- Rated Voltage (Battery): 6 V
- Volume: Up to 83 dB
- Number of Melodies: 17
- Call Distinction: 2-fold
- Protection Class (IP): 20
- Current Consumption: 0.3 A (DC)
- Special Features: Minimal standby power loss for long battery life.
9. Warranty and Support
Specific warranty information for the Grothe Croma 43170 Electronic Gong may vary by region and retailer. Please refer to your purchase documentation or contact your point of sale for details regarding warranty coverage.
For technical support or further inquiries, please contact Grothe customer service or visit their official website. Keep your proof of purchase handy when contacting support.
