Wrong Inkbird Temperature Reading

[AlexVic]

I have two inkbirds and they have a 4 degree difference so I need a thermometer to calibrate them. Does anyone use a candy thermometer to check there tank? Or should I buy the Hanna thermometer since those seem highly recommended?

 

[scowall]

Either one will work. I have used both and readings between the two were exactly the same.

 

[AlexVic]

Either one will work. I have used both and readings between the two were exactly the same.

Is this a good choice?

 

[Johnd651]

You can always check you calibration thermometer with an ice bath and boiling water. As long as the thermometer is on correct on both points, you should have a 2 point straight line calibration, and then be confident with the points in between.

To calibrate a thermometer, you typically use either an ice bath or boiling water as reference points to ensure accurate temperature readings. The ice point method (32°F or 0°C) is ideal for lower temperatures, while the boiling point method (212°F or 100°C at sea level) is used for higher temperatures.

Ice Point Method (Freezing Point):
1. Prepare an ice bath:
Fill a container with crushed ice and add cold water until the container is full. Stir the mixture to ensure the temperature is consistent.
2. Insert the thermometer:
Submerge the thermometer's stem or probe into the ice water, making sure it doesn't touch the sides or bottom of the container.
3. Allow to stabilize:
Wait for the temperature reading to stop fluctuating, which should be around 32°F (0°C).

Boiling Point Method:
1. Boil water:
Bring a pot of water to a rolling boil on the stove.
2. Submerge the thermometer:
Carefully insert the thermometer's stem or probe into the boiling water, ensuring it doesn't touch the sides or bottom of the pot.
3. Allow to stabilize:
Let the thermometer sit in the boiling water for about 30 seconds, or until the temperature reading stops changing.

 

[AlexVic]

You can always check you calibration thermometer with an ice bath and boiling water. As long as the thermometer is on correct on both points, you should have a 2 point straight line calibration, and then be confident with the points in between.

To calibrate a thermometer, you typically use either an ice bath or boiling water as reference points to ensure accurate temperature readings. The ice point method (32°F or 0°C) is ideal for lower temperatures, while the boiling point method (212°F or 100°C at sea level) is used for higher temperatures.

Ice Point Method (Freezing Point):
1. Prepare an ice bath:
Fill a container with crushed ice and add cold water until the container is full. Stir the mixture to ensure the temperature is consistent.
2. Insert the thermometer:
Submerge the thermometer's stem or probe into the ice water, making sure it doesn't touch the sides or bottom of the container.
3. Allow to stabilize:
Wait for the temperature reading to stop fluctuating, which should be around 32°F (0°C).

Boiling Point Method:
1. Boil water:
Bring a pot of water to a rolling boil on the stove.
2. Submerge the thermometer:
Carefully insert the thermometer's stem or probe into the boiling water, ensuring it doesn't touch the sides or bottom of the pot.
3. Allow to stabilize:
Let the thermometer sit in the boiling water for about 30 seconds, or until the temperature reading stops changing.

I’m definitely gonna do an ice bath but I just wanted a third reference.

 

[scowall]

Is this a good choice?

Yes, I have checked mine with that exact same one. But like the above poster indicated they have to be calibrated first.

 

[Johnd651]

I’m definitely gonna do an ice bath but I just wanted a third reference.

If it can handle both ends of the temp range, do both. Since you cannot calibrate at 78F, a linear calibration curve with 2 points will be more accurate for that middle temp range 32F - 78F - 212F.

Science behind it:

Single Point vs Multipoint Calibrations

An analytical error can be significantly reduced by choosing the correct calibration type, especially when modifying or translating methods. Single point calibrations are quick and easy aren't always

www.elementlabsolutions.com