Test and Measurement News

August 2010

Tech Tip: Waveform Overlays

Did you know that PicoScope can display a saved waveform in the background for comparison? This feature is built into PicoScope, but you might not have discovered it yet. It’s called Reference Waveforms.

You will find the Reference Waveforms feature in the Tools menu. Selecting the command opens a dialog that shows all available and saved waveforms. To save a waveform and display it in the background, select the source channel under the “Available” list and click Duplicate. The new reference waveform will then appear in the “Library” list. Next, click OK and the reference waveform will appear in the PicoScope window. You can drag it up and down, or scale and offset it, in the same way as a live waveform. You can also drag a live waveform over it for comparison.

Keep your PicoScope up to date: download the latest version now

New Protective Rubber Case for PicoScope 4000 Series

A new, custom-made silicone rubber case to protect your PicoScope 4000 Series scope is now available. It fits all models in the series, and allows unimpeded access to the connectors on the front and rear panels. It includes a carrying loop that can be used to hang the scope from a hook.

Order Code: PP691
Price: 20.00 GBP (approx. 33.00 USD or 24.20 EUR at today’s exchange rates)

Order your PicoScope Protective Rubber Case today

Questions and Answers

Here are some of the questions that have cropped up recently on our support forum:

Q. This week I bought the WPS500X pressure transducer and am just getting to grips with it. Can you tell me how to change the measurements from millibar to inHg as it’s a measurement I am more used to. I tried to make a custom probe but got confused when I got to the ‘Y’ ‘X’ options.

A. We have built some probe definitions for the WPS500X which read in inHg in all 3 ranges of the pressure transducer. There are 6 probes, which cover all 3 modes: 3 are called ‘InHg Pressure’ and 3 are called ‘InHg VAC’. The ‘InHg Pressure’ Probes are set to show pressure as positive readings and vacuum as negative. The ‘InHg VAC’ probes are set to show the vacuum as positive readings and pressure as negative.

Download the probe definitions from our forum

Q. I am using a Current Monitoring Kit with the EL005 logger which gives a reading once every minute. Since there can be variation in the current during that 1 minute of sampling, how is the output reading from the logger calculated? If the current changes during that 1 minute of sampling, is the output reading given by theEnviroMon software the average current within the 1 minute or is it the highest current? Or is it something else?

A. The true RMS value of the AC current is sampled at least four times and possibly up to 10 times within that minute (depending on the total number of sensors). All these readings are averaged and that value used as the reading for that minute.


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Software releases

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Contact details

UK Headquarters:
Pico Technology, James House, Colmworth Business Park, St. Neots,
Cambridgeshire, PE19 8YP, United Kingdom
Tel.: 01480 396395 (+44 1480 396395)
Fax: 01480 396296 (+44 1480 396296)

North America Office:
Pico Technology, 320 N Glenwood Blvd, Tyler TX 75702, United States
Tel:+1 800 591 2796 (Toll Free)
Fax:+1 620 272 0981

Asia-Pacific Office:
Pico Technology, Room 2252, 22/F, Centro, 568 Hengfeng Road, Zhabei District,
Shanghai 200070, PR China
Tel: +86 21 2226-5152

Email: sales@picotech.com