Search found 434 matches

by PeterF
Wed Aug 07, 2013 10:40 am
Forum: USB PC Data Loggers
Topic: Cell Charging and Discharging Monitoring using ADC-20
Replies: 12
Views: 6498

Re: Cell Charging and Discharging Monitoring using ADC-20

Hi, What I proposed is completely different to the original application note. Using two 4.7 ohm resistors in series connected across each battery allows measurement of voltage and current at the same time. By measuring the voltage across the resistor connected to 0V, the measured voltage will be hal...
by PeterF
Mon Aug 05, 2013 2:45 pm
Forum: USB PC Data Loggers
Topic: Cell Charging and Discharging Monitoring using ADC-20
Replies: 12
Views: 6498

Re: Cell Charging and Discharging Monitoring using ADC-20

Hi, The terminal board for the ADC-20 is completely different to that for the ADC-16 and I would not advise trying to add the various load resistors needed for your testing to this terminal board. The batteries and load resistors plus any switches and charging connections should be put together on a...
by PeterF
Thu Jul 11, 2013 10:34 am
Forum: PicoScope 6 for Windows
Topic: Multimeter+Picoscope
Replies: 1
Views: 2014

Re: Multimeter+Picoscope

Hi, There could be several reasons for this. Can you tell me how you are measuring this current, please? Are you using a series resistor and measuring the voltage across it? What is the value of this resistor and the level of current? Is it a simple DC current or a mixture of AC & DC? Are you using ...
by PeterF
Tue May 21, 2013 10:03 am
Forum: PicoScope 6 for Windows
Topic: Can Picoscope save high-frequency data?
Replies: 1
Views: 2938

Re: Can Picoscope save high-frequency data?

Hi, The best way of doing this is to use "Streaming" mode to capture a large number of samples on screen and then "Zoom" in to view the details. You do not say how long you wish to record or at what sample rate but a a start try:- First set up the "Requested number of samples":- 100MS then Collectio...
by PeterF
Fri Mar 01, 2013 8:31 am
Forum: USB PC Data Loggers
Topic: TC-08 - Voltage and Temperature
Replies: 10
Views: 20581

Re: TC-08 - Voltage and Temperature

Hi, I have not heard if this before. If you are reading 33mV at the TC-08 you should be getting 3.333V at the input terminals of the terminal board. Could you please monitor this voltage to see if that varies in the same way as the reading on the TC-08. If it does, the TC-08 is simply reading the cu...
by PeterF
Mon Feb 18, 2013 3:56 pm
Forum: Getting Started
Topic: Measuring frequency
Replies: 1
Views: 2112

Re: Measuring frequency

Hi Tom, Your 2204 scope has a arbitrary waveform generator (AWG) which can be swept from near DC up to 100kHz. If you connect your coil in series with a known capacitor and can find the series resonant frequency you will be able to calculate the coil inductance. At series resonance, the circuit will...
by PeterF
Mon Feb 18, 2013 3:21 pm
Forum: Pre-Sales Advice
Topic: Data Loggers
Replies: 1
Views: 2754

Re: Data Loggers

Hi, Pico data loggers accept analogue data input only (volts, current, etc) not digital. As long as all your sensors output in some form of analogue way, one of our Pico Loggers should be able to collect your data, display it and save to hard drive. The most usual analogue types are:- Voltage Curren...
by PeterF
Fri Feb 15, 2013 8:40 am
Forum: PicoLog
Topic: Problem removing PICO software
Replies: 1
Views: 2391

Re: Problem removing PICO software

Hi Glenn, For XP you need to use PicoLog R5.22.8 & PicoScope R5.21.2. Since you have loaded and unloaded a few times and done a few other things you may have some illegal, corrupted, setting in your plw.ini file. When you first run PicoLog, it creates a file called plw.ini and tries to save it in it...
by PeterF
Fri Feb 15, 2013 8:10 am
Forum: Sensors
Topic: Measuring voltages using external sensor port
Replies: 7
Views: 6909

Re: Measuring voltages using external sensor port

Hi, If, when running PicoLog, you minimise the Recorder window, then it will shrink to a small "PL" logo in the bottom right of the tool-bar. When you wish to restore to the original window size, just double-click on that small "PL" logo. The display will return to as before. If, at any time Recorde...
by PeterF
Mon Jan 14, 2013 9:46 am
Forum: USB PC Data Loggers
Topic: TC08 and druck pressure transmitter
Replies: 13
Views: 7901

Re: TC08 and druck pressure transmitter

Hi, Your supply voltage of 21 volts is fine. You need to check the wiring of your pressure sensors and SCTB. Unplug the SCTB from the TC-08. Power the sensors and, using a digital voltmeter, check the voltage present at the input screw terminals of the SCTB, where the two wires connect. At 0 bar abs...
by PeterF
Wed Jan 09, 2013 12:09 pm
Forum: Pre-Sales Advice
Topic: Condition monitoring system
Replies: 1
Views: 2662

Re: Condition monitoring system

Hi, You cannot use an ADC-20 with accelerometers, the sample rate of the logger is far too slow You will need to use an IEPE oscilloscope:- http://www.picotech.com/picoscope4224IEPE-specifications.html http://www.picotech.com/picoscope4000-accessories.html#TA095 This two channel scope can accept inp...
by PeterF
Wed Jan 09, 2013 12:03 pm
Forum: Pre-Sales Advice
Topic: Pico ADC 20
Replies: 1
Views: 2500

Re: Pico ADC 20

Hi, The ADC-20 & ADC-24 loggers are not compatible with the accelerometers your describe (IEPE accelerometers), because the loggers are far too slow to respond to the high frequencies measured. The loggers can only respond to a few Hz at most. What you require is one of our dedicated IEPE oscillosco...
by PeterF
Wed Jan 09, 2013 12:03 pm
Forum: Getting Started
Topic: ADC-20 and terminal board proper connection
Replies: 1
Views: 2026

Re: ADC-20 and terminal board proper connection

Hi, The ADC-20 & ADC-24 loggers are not compatible with the accelerometers your describe (IEPE accelerometers), because the loggers are far too slow to respond to the high frequencies measured. The loggers can only respond to a few Hz at most. What you require is one of our dedicated IEPE oscillosco...
by PeterF
Wed Jan 09, 2013 12:01 pm
Forum: Pre-Sales Advice
Topic: Compatibility
Replies: 1
Views: 2391

Re: Compatibility

Hi, The ADC-20 & ADC-24 loggers are not compatible with the accelerometers your describe (IEPE accelerometers), because the loggers are far too slow to respond to the high frequencies measured. The loggers can only respond to a few Hz at most. What you require is one of our dedicated IEPE oscillosco...
by PeterF
Wed Jan 09, 2013 12:00 pm
Forum: Getting Started
Topic: Compatibility
Replies: 1
Views: 1755

Re: Compatibility

Hi, The ADC-20 & ADC-24 loggers are not compatible with the accelerometers your describe (IEPE accelerometers), because the loggers are far too slow to respond to the high frequencies measured. The loggers can only respond to a few Hz at most. What you require is one of our dedicated IEPE oscillosco...