REX-C100 PID (cheapest PID on ebay)

[augiedoggy]

I am happy with mine. I use a PT100 so I can see fractions of a degree. With a NTC, if it shows 66 deg, is it 66.1 or 66.9? If you have one with an electromechanical relay, just use that as a master relay to drive a higher current slave relay if you need it. No big deal. The actual model designation tells you exactly what the controller does. You can find plenty of you tubes decoding the number. Check those, work out what you want then make sure the seller is supply that exact model. If you are plugging your heating system in, then the controls should be switching all current carrying conductors feeding the elements and use segregation between the LV and ELV cables and terminals. Pointless having a great brew system if you're dead.

When I bought my Rex c100 I found the model number was always c100 whether it was relay output or ssr or whether it would work with a pt100 or not... The real reason was they were knock offs made by different manufacturers. If they have different model numbers now that's a recent thing because there's a bunch of you tube videos on these from people modding them because of this. This is why I bought mine from an eBay seller who sold it bundled with an ssr at the time to ensure it would work.

 

[rcvannus]

I have an old mercury thermometer with decimals which was used for laboratories and I am using it for calibrate my c100. Thanks for SC settings @Glot.


Now I have other problem, I've ordered from ebay another c100 but this one is "Berne REX-C100" and the menu differs from my old "RKC REX-C100".
Problem is that I need it to show me decimals of °C because I am using it in my egg incubator. I have PT100 (thermocouple) and I want to use it instead of the K type thermocouple that came with C100.

When I power it on in shows me:

C04

and then

K
999



Then when I enter in settings menu I have this (all with only 3 digits values):

AL1 (050)
SoH (999) this one is locked
ATU (000) this one is locked
P (030
I (240)
d (060)
Ar (025)
T (020)
SC (000)
LCK (000)

When I change LCK to (100) I get:
SL1 (000)
SL2 (000)
SL3 (000)
SL4 (001)
and here everthing is locked except SL4. I think that if I could unlock SL1 that I can change the thermocouple type, but how?

I have the exact same issue! Were you able to solve it yet?

 

[Glot]

I have a better set of instructions but the PDF is too large to upload here.
First, make sure you have set the input type. PT100 is 1000. Make sure it is PT100 and not another type of thermister. Others can be used but require a different type inputted. Then go to COD 0001. Set the number of decimal points under PGdP Once set, move on to the next option. This locks your selection in.
I don't know why everyone wants a solid state relay. Nothing wrong with an electro mechanical one. The only issue is, the internal relay in the unit is only rated to 10 amps for reliable operation. Just use it to drive a single throw double pole slave relay.
My unit is a Berme brand. The model is REX-C100FK02-V*AN N

 

[augiedoggy]

I have a better set of instructions but the PDF is too large to upload here.
First, make sure you have set the input type. PT100 is 1000. Make sure it is PT100 and not another type of thermister. Others can be used but require a different type inputted. Then go to COD 0001. Set the number of decimal points under PGdP Once set, move on to the next option. This locks your selection in.
I don't know why everyone wants a solid state relay. Nothing wrong with an electro mechanical one. The only issue is, the internal relay in the unit is only rated to 10 amps for reliable operation. Just use it to drive a single throw double pole slave relay.
My unit is a Berme brand. The model is REX-C100FK02-V*AN N

The internal relay is a mechanical one and not ideal for long term reliable fast switching like the type of use for controlling a heating element.. In a nutshell the contacts will arch, overheat and burn up and eventually fail in this environment and this is why mechanical relays arent used for this type of application commercially.

 

[rcvannus]

I have a better set of instructions but the PDF is too large to upload here.
First, make sure you have set the input type. PT100 is 1000. Make sure it is PT100 and not another type of thermister. Others can be used but require a different type inputted. Then go to COD 0001. Set the number of decimal points under PGdP Once set, move on to the next option. This locks your selection in.
I don't know why everyone wants a solid state relay. Nothing wrong with an electro mechanical one. The only issue is, the internal relay in the unit is only rated to 10 amps for reliable operation. Just use it to drive a single throw double pole slave relay.
My unit is a Berme brand. The model is REX-C100FK02-V*AN N

Thanks, but two issues right away.
1) I can't get to the input type setting, because I can not modify SL1 and only have 3 digits.
2) Because the double button combination does not work, I can't get to the COD setting.

One new issue: When I try to set the temperature, only the down button works. With other settings both up and down work perfectly.

Any ideas are welcom.

My unit is a Berme REX-C100FK02-V*AN DN

 

[emerballen]

I have the exact same issue! Were you able to solve it yet?

Were you able to solve it yet?

 

[emerballen]

I have the exact same issue! Were you able to solve it yet?

Were you able to solve it yet?

 

[rshortt]

Anyone? 3 digit issue here too, still searching for answers.