Différences entre versions de « Senseur Thermocouple-FAQ »
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== The temperature of my thermocouple seems to be backwards! == | == The temperature of my thermocouple seems to be backwards! == | ||
| − | If I heat up the probe the reported temperature goes down | + | {{bloc-etroit|text=If I heat up the probe the reported temperature goes down |
| − | This is likely caused by the thermocouple wires being labled incorrectly. Try swapping the two thermocouple leads, even if yellow and red wires are in the right slots - we've seen some thermocouple where the wire colors are wrong. | + | This is likely caused by the thermocouple wires being labled incorrectly. Try swapping the two thermocouple leads, even if yellow and red wires are in the right slots - we've seen some thermocouple where the wire colors are wrong.}} |
| + | |||
== My MAX31855 output is really unstable and noisy == | == My MAX31855 output is really unstable and noisy == | ||
Version du 14 août 2013 à 10:33
The temperature of my thermocouple seems to be backwards!
If I heat up the probe the reported temperature goes down This is likely caused by the thermocouple wires being labled incorrectly. Try swapping the two thermocouple leads, even if yellow and red wires are in the right slots - we've seen some thermocouple where the wire colors are wrong.
My MAX31855 output is really unstable and noisy
If I touch or move the probe the temperature output goes crazy The MAX31855 is surprisingly sensitive, we've found a good way to fix this is to place a 0.01uF to 0.1uF capacitor across the thermocouple leads (that is, place the capacitor into the blue terminal block, or solder to the bottom as shown below).
Source: Thermocouple
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