Pro/Forums - View Single Post - XP-Diode reading fails, does Maxim 6657 need an offset!?

fred777 · 06-10-2004, 03:13 AM

Hi! I just assembled such a Temp-Reading-Circuit described on many sites like http://www.procooling.com/articles/h...hermal_dio.php

I'm sure having assembled it properly, but the remote sensors shows over 100ºC in MBM5!!! The local sensors is right (28ºC).

The remote wire is shielded and 4in (10cm) long. I also but the filter stuff correctly (2.2nF for the sensor, 2x 100Ohm resistors & 2x100nF for supply) :shrug:

So, has anyone got it working?

What might be the cause?

Do I have to set an offset for the remote sensor?

06-10-2004, 03:13 AM	#1
fred777 Cooling Neophyte Join Date: Jun 2004 Location: Good old Saxony Posts: 6	XP-Diode reading fails, does Maxim 6657 need an offset!? Hi! I just assembled such a Temp-Reading-Circuit described on many sites like http://www.procooling.com/articles/h...hermal_dio.php I'm sure having assembled it properly, but the remote sensors shows over 100ºC in MBM5!!! The local sensors is right (28ºC). The remote wire is shielded and 4in (10cm) long. I also but the filter stuff correctly (2.2nF for the sensor, 2x 100Ohm resistors & 2x100nF for supply) :shrug: So, has anyone got it working? What might be the cause? Do I have to set an offset for the remote sensor?