Reddit reviews Fluke 289 True-RMS Stand Alone Logging Multimeter
We found 1 Reddit comments about Fluke 289 True-RMS Stand Alone Logging Multimeter. Here are the top ones, ranked by their Reddit score.
Stores up to 15,000 recorded eventsReal time clock for automatic time stamping of saved readingsLarge 50,000 count, 1/4 vga display with a white BacklightLow impedance voltage function prevents false readings due to ghost voltageUnique logging and graphing capabilities mean you no longer need to download logged readings to a PC to detect a trendStores up to 15,000 recorded events.Electromagnetic compatability EMC EN6 1326-1Real time clock for automatic time stamping of saved readingsLarge 50,000 count, 1/4 VGA display with a white backlight
Sounds like you fixed the problem with defrosting.
The temperature problem you are having may be the refrigerator but it may also be your testing methods or your equipment. I use a Fluke 289 and a Fluke 80PK-25 Type-K Thermocouple into the customers icecream or anything with a large thermal mass in a liquid form. I use a Fluke 80BK-A Thermocouple for oven calibrations.
My dad is an engineer and says RTDs are more accurate but I think this is good enough. My thermocouples are all about a degree off from each other in a glass of ice water. It's within accepted limits for the industry.