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PID Problems

Here at Rosin Press Plates, we've become accustomed to emails regarding "controller problems." Typically by the time a customer emails us, they're very frustrated. You can easily tell by the aggressive opening in their email. It's not uncommon to read things like... "If

you don't fix this, I'll tell everyone in the community to avoid your shitty rosin plates." or, "Please help, my PID is broke. The temperature of the rosin plates is way off." I can understand why they're pissed. If the customer read any information on the internet about the DIY rosin press plate kits available, it's safe to say they read other people's complaints about some PID's not being accurate. Then the customer receives a rosin plate kit that

mimics what they've read and boom, confirmation bias. Unfortunately, for the customer, once people find out the issues they're experiencing are just user error, they don't update their review or complaint. Well, this blog post is Rosin Press Plates' response to most of the negative talk regarding the PID's for DIY rosin press kits. Below we'll go over the two biggest user errors that lead to complaints or problems for our customers. (This blog post is not only for Rosin Press Plates' kit's but most of the kits you'll find like ours.)

 

The use of infrared thermometers.

Infrared thermometers have good accuracy when measuring most things, but they'll have a hard time with rosin plates because the plates are so reflective. In the user manual for any infrared thermometer, you'll find a section warning users that the infrared thermometer won't give an accurate reading on any reflective, shiny, or glossy surface. It's possible by applying a piece of non-reflective tape over the rosin plate's side surface; you can get a target from which you can get a better measurement. We prefer to use a manual meat thermometer if we're testing the rosin plate's surface temperature. You'll get a better

reading every time without the need to place tape on the rosin plate's surface.

 

Setting up the PID wrong.

The number one complaint we receive at Rosin Press Plates is "The temperature is rising past where I set it. I set it to 190F, and it keeps shooting up past 230F before I shut it off." First off, this is a normal behavior of these units. After setting the temperature where you want it, leave the unit for 15 minutes. Over the next 15 minutes, the temperature will rise past where you want it for about 10 minutes before it starts to fall back to the desired area.

The rosin plates are pretty thick, so the extra heat, in the beginning, helps the entire rosin plate warm up faster. (It's not unusual for the PID to raise to 230-235F before falling to the desired temperature.) Follow the five steps below to ensure you're setting up you PID correctly.

Rosin Plate PID Control
  1. Plugin the unit's power and heating rods.
  2. Turn on the power at the rear of the PID.
  3. Use the up and down arrows to adjust the temperature. (No need to press the "Set" button.)
  4. Power the heating rods by pressing the silver power buttons on the front of the PID unit.
  5. Wait approximately 15 minutes, and the temperature will settle to the temperature you desire.

 

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