How To Change An Infrared Forehead Thermometer From Celsius to Fahrenheit?
The method for changing an infrared forehead thermometer from Celsius to Fahrenheit varies slightly depending on the model, but typically involves pressing and holding a specific button (often the “Mode” or “Set” button) while the thermometer is off or in standby mode until the display switches to the desired temperature unit. Consult your user manual for the most accurate instructions for your specific device.
Understanding Infrared Forehead Thermometers and Temperature Units
Infrared (IR) forehead thermometers have become commonplace for quick and non-contact temperature readings, particularly in situations requiring minimal disruption, such as monitoring children or screening large groups. Understanding how to operate these devices, including switching between Celsius (°C) and Fahrenheit (°F), is essential for accurate temperature assessment in various global settings. This article offers a comprehensive guide to accomplishing this conversion, along with useful FAQs.
Why Change Temperature Units?
The need to switch between Celsius and Fahrenheit primarily arises from geographic differences in temperature measurement conventions. While most of the world uses Celsius, the United States and a few other countries prefer Fahrenheit. The ability to switch between units ensures that readings are easily interpretable, regardless of location or personal preference. Here’s why being able to switch between units is important:
- Clarity and Understanding: Ensures you are reading the temperature in a unit you comprehend.
- Consistency: Allows for consistent readings within a household or organization using a preferred scale.
- Medical Accuracy: Prevents misinterpretations that could lead to incorrect medical decisions.
- Ease of Communication: Facilitates clear communication about temperature readings with healthcare professionals, regardless of their location.
The General Procedure for Conversion
While specific instructions vary, a common approach involves accessing the thermometer’s settings. Here’s a general overview of the process, but always refer to the manual for your specific model:
- Turn Off the Thermometer: Start with the thermometer powered off or in standby mode.
- Locate the Mode/Set Button: Identify the button labeled “Mode,” “Set,” or a similar term, often located near the display or on the side of the device.
- Press and Hold: Press and hold the identified button for several seconds (typically 3-5 seconds).
- Observe the Display: Watch the display for a change in the temperature unit. You may see a small “°C” or “°F” symbol flashing or changing.
- Release the Button: Once the desired temperature unit appears, release the button. The thermometer should now be set to the new unit.
- Confirm the Setting: Take a test reading to ensure the thermometer is displaying the temperature in the chosen unit.
Variations Based on Model
Different models of infrared forehead thermometers employ slightly different methods for switching temperature units. Some may have a dedicated button, while others require navigating through a menu using multiple buttons. Always consult the user manual to avoid accidentally changing other settings or damaging the device. Common models like iProven, Braun, and Innovo typically follow the general procedure described above, but always confirm specific button placement and timing with the provided documentation.
Common Mistakes to Avoid
Several common mistakes can occur when attempting to change temperature units:
- Not Consulting the Manual: Assuming the procedure is the same across all models.
- Holding the Wrong Button: Pressing a different button can alter other settings.
- Releasing Too Early: Releasing the button before the unit changes.
- Holding Too Long: Some thermometers have other functions triggered by extended button presses.
- Ignoring Battery Level: Low battery can sometimes interfere with settings changes. Ensure the battery is adequately charged.
Troubleshooting
If you are unable to change the temperature unit, consider the following troubleshooting steps:
- Check the Battery: Replace the battery if it is low.
- Consult the Manual Again: Review the instructions carefully, paying attention to button placement and timing.
- Contact Manufacturer Support: If you are still unable to change the unit, contact the manufacturer’s customer support for assistance.
- Reset the Thermometer: Some thermometers have a reset function that can restore default settings, including the temperature unit. Refer to the manual for reset instructions.
Table: Comparing Button Locations & Unit Switching Procedures for Common Models
| Thermometer Model | Common Button Labels | Switching Procedure Overview | Notes |
|---|---|---|---|
| iProven DMT-489 | Mode/Set | Hold “Mode/Set” while off until °C/°F changes | Check battery if it fails. |
| Braun No Touch | Power/Scan | Requires a specific sequence of button presses documented in the manual. Varies slightly by model. | Manual is crucial as button functionality can be multi-layered. |
| Innovo Forehead | Set | Hold “Set” while off until °C/°F changes | Sometimes, a menu appears before the temperature unit option. |
FAQs: In-Depth Answers for Common Questions
Why is my thermometer stuck in Celsius, even after following the instructions?
A common reason for this issue is a low battery. The thermometer might not have enough power to properly execute the change. Try replacing the battery with a fresh one and repeating the process. Additionally, ensure you are holding the correct button for the required duration, and that the thermometer is truly off or in standby mode before beginning the process.
Can I permanently change the temperature unit, or will it reset when I turn it off?
In most cases, the temperature unit setting is stored in the thermometer’s memory and will persist even after the device is turned off and on. However, some older or lower-quality models might reset to a default setting (often Celsius) each time they are powered off.
My thermometer has no “Mode” or “Set” button. How do I change the unit?
If your thermometer lacks a dedicated “Mode” or “Set” button, it likely uses a combination of the existing buttons (e.g., power button, scan button) to access the settings menu. Consult your user manual for specific instructions, as the method can vary greatly depending on the manufacturer. Look for instructions on how to enter the “Settings” or “Configuration” mode.
Does changing the temperature unit affect the accuracy of the thermometer?
No, changing the temperature unit does not affect the accuracy of the thermometer itself. The device still measures the same infrared radiation; it simply converts the reading to the selected unit (Celsius or Fahrenheit) before displaying it. The underlying measurement remains the same.
How do I know if I have successfully switched the temperature unit?
The easiest way to confirm a successful switch is to take a test reading. If you know the approximate temperature of an object or person, compare the reading on the thermometer to your expectation. A noticeable difference will indicate that the unit has changed.
What if I lost the user manual for my thermometer?
Many manufacturers provide digital versions of their user manuals on their websites. Search for your thermometer model number (often found on the device itself) and “user manual” online to find a downloadable PDF. You can also contact the manufacturer’s customer support and request a digital copy.
Can I use a universal method for changing the temperature unit on all infrared thermometers?
No, there is no universal method. While some thermometers share similar procedures, the specific button combinations and menu navigation can vary significantly across different brands and models. Always refer to the user manual for accurate instructions.
My forehead thermometer shows an error message after I tried to change the temperature unit. What should I do?
An error message often indicates a malfunction or incorrect operation. First, try removing and reinserting the battery. Then, carefully review the user manual and repeat the unit change process, ensuring you follow each step correctly. If the error persists, contact the manufacturer’s customer support for assistance.
Is there a way to reset the thermometer to its factory settings?
Some thermometers have a reset function, which can restore the device to its original factory settings, including the default temperature unit. The reset procedure is typically detailed in the user manual and may involve pressing and holding a specific combination of buttons for a set duration.
My thermometer only displays whole numbers. Can I see decimal places in Fahrenheit?
The display resolution of the thermometer is a separate feature from the temperature unit. If your thermometer only displays whole numbers in Celsius, it will likely do the same in Fahrenheit. More advanced models may allow you to adjust the display resolution in the settings.
Will changing the battery affect the temperature unit setting?
In most cases, changing the battery will not affect the temperature unit setting. The setting is typically stored in the thermometer’s non-volatile memory, which retains data even when the device is powered off or the battery is removed. However, very old or low-quality models might lose their settings when the battery is replaced.
Are there any infrared forehead thermometers that automatically switch between Celsius and Fahrenheit?
No, I’m not aware of any forehead thermometers that automatically switch between Celsius and Fahrenheit based on location or preference. The user must manually select the desired temperature unit in the settings.