Search found 4 matches

by Tone5
Mon Nov 06, 2017 12:23 pm
Forum: USB PC Data Loggers
Topic: PT-104 Negative Resistance Readings
Replies: 6
Views: 2742

Re: PT-104 Negative Resistance Readings

The loggers are being setup at a site which is not my normal place of work. I'll check the pin numbers and their corresponding terminals next time I go there, which could be in a few weeks time.
by Tone5
Tue Oct 31, 2017 3:18 pm
Forum: USB PC Data Loggers
Topic: PT-104 Negative Resistance Readings
Replies: 6
Views: 2742

Re: PT-104 Negative Resistance Readings

Hi Martyn I've found the problem. Unless I'm mistaken, it seems that the pins on the PT-104 screw terminal adapters don't match the diagram on the datasheet (page 2 of https://www.picotech.com/download/manuals/pt-104-screw-terminal-adaptor-users-guide.pdf). I identified the terminals which correlate...
by Tone5
Fri Oct 20, 2017 9:09 am
Forum: USB PC Data Loggers
Topic: PT-104 Negative Resistance Readings
Replies: 6
Views: 2742

Re: PT-104 Negative Resistance Readings

Hi Martyn I'm measuring 10 channels, using 4 PT-104 loggers. 2 of the channels are about 60 ohm and the remainder are in the range 8-10 k ohm. The channels are setup as follows: Realtime continuous, repeat immediately, restart delay 1s 1s sampling interval, stop after 500 samples, single reading per...
by Tone5
Thu Oct 19, 2017 10:39 am
Forum: USB PC Data Loggers
Topic: PT-104 Negative Resistance Readings
Replies: 6
Views: 2742

PT-104 Negative Resistance Readings

Hi all I'm trying to configure a PT-104 data logger to record 2 wire resistance measurements. I have 3 of these loggers and am recording 10 channels. 9 of the channels are giving negative resistance readings and one is giving a positive reading. The magnitude of the readings is correct, but I'd like...