I'm getting the E05 error on my MasterTemp 400. Reviewed the posts here, and I don't think I have any of the other issues that might cause this besides the sensor. Sensor is maybe two years old. Pulled the sensor to check ohm reading, but I'm not sure how to interpret what I'm seeing.
When I first connect my digital readout Actron multimeter, set to the 20M ohm setting, I get a reading around 1.6 to 1.9. Let it sit and the reading creeps up over maybe 5 minutes to between 3.2 and 3.4. This is at 76 degrees ambient temp. Heat the sensor to 98.6 and the reading drops to 1.9. Hot tap water drops the reading to 1.0. Cold tap water then reads 2.8. Let it settle to ambient again and the reading is 3.3.
So, several minute delay before I get a stable (not changing) ohm reading on my meter. Should there be that kind of delay? I'm new to using a multimeter, so I don't know what to expect. Nothing in the meter instructions or "how to" stuff online talks about having to wait for a stable reading. And what little other ohm testing I've done with this meter seems to give me a stable reading within a couple of seconds.
Does this sound like the sensor is good or bad? Or is my multimeter misbehaving? Thanks.
When I first connect my digital readout Actron multimeter, set to the 20M ohm setting, I get a reading around 1.6 to 1.9. Let it sit and the reading creeps up over maybe 5 minutes to between 3.2 and 3.4. This is at 76 degrees ambient temp. Heat the sensor to 98.6 and the reading drops to 1.9. Hot tap water drops the reading to 1.0. Cold tap water then reads 2.8. Let it settle to ambient again and the reading is 3.3.
So, several minute delay before I get a stable (not changing) ohm reading on my meter. Should there be that kind of delay? I'm new to using a multimeter, so I don't know what to expect. Nothing in the meter instructions or "how to" stuff online talks about having to wait for a stable reading. And what little other ohm testing I've done with this meter seems to give me a stable reading within a couple of seconds.
Does this sound like the sensor is good or bad? Or is my multimeter misbehaving? Thanks.