Search found 3 matches

by ciacco85
Tue Dec 20, 2011 10:23 am
Forum: USB PC Data Loggers
Topic: DC negative Output
Replies: 3
Views: 2920

Re: DC negative Output

Datalogger datasheet: +5 V ±1,0 V a 2 mA -5 V ±1,5 V a 2 m Sensor (INA 129) datasheet : POWER SUPPLY: typ ±700 max ±750 µA (between ±2.2V to±18V) No problem for voltage, but if I've 8 sensor that need this current I don't undestand what is the max number of sensor 2/0.7 = ~2 (same as 4/1.4) 2/1.4 = ...
by ciacco85
Mon Dec 19, 2011 11:30 am
Forum: USB PC Data Loggers
Topic: ADC-24 w reference electrode
Replies: 5
Views: 3683

Re: ADC-24 w reference electrode

Now it's all OK, we are using the INA 129 and it's working fine. We are developing a matrix of 8 instrumental amplifier where all the inputs are sharing the same reference electrode. Is there any any problem if the reference elctrode is connected to the AG pins of the DataLogger. I'm worried about t...
by ciacco85
Mon Dec 19, 2011 11:22 am
Forum: USB PC Data Loggers
Topic: DC negative Output
Replies: 3
Views: 2920

DC negative Output

Hi About the ADC24 PCB full of holes and port provided with the data logger itself. I want the +5V and -5V to bias some OpAmp used as Instrumental Amplifier but only the +5V and +2.5V works/are connected to the Data Logger. Tester says that -5V port is grounded, but i'm sure there's this voltage som...