Technology

Review: Fluke 233

Late post is late.

 

Many thanks to e-14 for this one. Some time in summer, I won a lovely bit of kit. At the time I was cursing, the day I found out I was only round the corner from the offices but couldn’t make it to drool in person. However, following a short wait (and a looong drive home from Leeds), I got home to find a box. What was inside it you ask? Simple, a Fluke 233 and some e-14 goodies.

 

The Fluke 233 is a remote display Digital Multi Meter with an impressive feature list including:

  • Measure up to 1000 V ac and dc
  • Measure up to 10 A (20 A for 30 seconds)
  • 10,000 μF capacitance range
  • Frequency to 50 kHz

 

Whats impressive about this, aside from the features, is the display. For those who have parts of systems scattered about, or in awkward places, or just want to monitor something from the other side of the room (We’ve all been there right?), the display module detaches. This allows you to connect up the meter as usual, but walk away (Up to 10 meters) with the display. To make it easier the display itself is magnetic allowing you to easily attach it to a nearby surface such as a control box you are working on. The main unit however is not so lucky. With the basic kit your only option is to carefully place it somewhere stable. Or, take advantage of one of the accessory kits. One such item is the ToolPak. This simple strap clips onto the back of your Fluke meter and adds the magnetic feature seen in the disaply module. Should you not have a magnetic surface available, you can always clip it onto another appropriate surface. Should you want to refrain from hanging about, there is the stand option, seen on many meters. Simply flip it out from the back of the meter to prop it up while you work.

Aside from the amazing remote display, the meter itself is pretty standard. Auto ranging, Min/Max/Avg options, temperature and frequency features, back light, true-rms etc. A good quality meter, great for any engineer working in potentially hazardous or awkward spaces.

 

While working with it, I haven’t had any major problems (The minor ones all being down to a lack of tea), the battery life is ok. It might struggle with heavy use, however it does not need anything special, just AA alkaline cells. The wireless function for the display turns off when connected to the main unit (and resorts to an IR connection, no dirty pins to deal with) in order to conserve power. Over all it is a very nice unit, well worth the money, if a little on the expensive side. Not one for beginners thats for sure!

 

My only complaints with it are with the kit contents. While it is not expected that the meter comes with a case, I do feel it could have came with one, or at least some nice bubblewrap to package it. For those considering getting one, or who have one I do recommend getting a case. You can get one from Fluke directly or locate one for yourself. Just don’t forget it must have room for all your accessories! My other complaint is with the manual. It is on CD. While not a problem for most users, some platforms may have issues opening the included files. Should you need the manual, you can soon download a copy from the Fluke website.

 

My rating? 9.9/10

Marks are lost for the manual not being as accessible as it could be.

 

Worth buying? Yes, if you are going to need the remote display, go for it, if not, stick with one of the other models and save the money from the batteries.


Steve Jobs

Earlier today it was announced that Steve Jobs, one of the men behind Apple, has passed away (http://www.bbc.co.uk/news/world-us-canada-15193922).

This is a sad day for everyone. Whether you  like Apple products or not, it is hard to deny that his work has made a great difference in the world. Without him, we may not have had things like the Macbook, the iPod, the iPhone. Certain printer drivers may not have been as good as they are.

For me, Jobs played a part in where I am today. Had it not have been for the inspiration from him (and that of many others), I may not have been in computing now. It is safe to say I owe a lot to Jobs and the work he has done. Lets not forget of course his work in other areas that have touched many more of us.

Pixar was co founded by Mr Jobs. Since then they have produced nothing but amazing films. At some point, we have been touched by the work of Pixar, or know some who has been. Had Jobs not been involved in Pixar, who knows what would have happen. Perhaps no Wall-E? No UP?

No matter what he has done, he has touched countless people in some way. One of the best comments I’ve read so far about this tragic event is from Mr (Evil) Wil Wheaton http://wilwheaton.typepad.com/wwdnbackup/2011/10/your-time-is-limited-so-dont-waste-it-living-someone-elses-life.html

A sad day for everyone. Steve jobs shall be missed. Rest In Peace dude.


Site Maintenance!

New round of site maintenance coming up. Should only cause issues on partner sites and not the main one. If there is any weirdness tomorrow, please let me know!


Mini Project

New mini project up today. Following a request on Twitter from a researcher looking for a search application, I was curious and started writing my own. A few hours research (Mostly rebuilding git after a machine rebuild) and a basic design and program is ready to go. Although it has a few issues and some missing features, the tool takes a query from the command line and returns the 15 newest results. These are then outputted to a CSV file for later use. To take care of the heavy lifting, the Twitter4j library is used.

Want to try it or contribute it? Have a look at the repository.


Hidden Science Map

Think scientists are just stuck in labs all day and follow all the stereotypes? Well you are wrong! Slightly. No promises about some of the stereotypes…

To prove this, the Science Council launched the Hidden Science Map project. The map, aimed at school children is designed to show that scientists, engineers and technologists are everywhere. They play the same sports as you, shop in the same places you do and have ‘normal’ lives.

If you are a scientist, engineer or technologist, I urge you to sign up and get yourself on the map to help promote STEM careers!


ICSP?

Over the past year I have been working on a project using purely Arduinos. Now that this project is nearly over, I have decided to take the optional step of taking it further.

The plan so far is to still use the Arduino environment, but load the code onto a custom PCB. This should allow the software to remain the same while allowing a massively reduced version of the hardware (The current modules can be compared to bricks). To do this there are two options, an FTDI cable/chip or to program the uC directly. While FTDI chips are cool and everything, I decided against it with the option to include on at a later stage in the process. This left the option of programming the uC directly.

To do this rather than go for a nice AVR programmer such as those produced by Atmel, I went for the altogether more fun option and went with Adafruit Industries’ USBtinyISP. As usual, Oomlout showed off and got it packed and shipped allowing it to arrive 2 days later, and in their usual way, Adafruit did the same with an excellent kit.

To the kit! So what do you need to make it so simple? Aside from the usual tools (This was one of the few times I wish I had an actual PCB vice and not just some helping hands and a spare finger), I’d highly recommend having some good music on and some milkshake. Why? Why not? Everyone should have a decent beverage while working. Based on the weather and the general mood of the day, milkshake seemed appropriate. Assuming you follow the instructions and read them (Yeah, I didn’t do that the first time on one or two sections…), the kit is easy to build with everything explained where required. If there was one thing I’d recommend, it would be to have some bluetak (Or equivalent) handy for when you solder the headers.

What happens when its done? COmpleted USBtinyISPWell you get something that looks like this. Your next step as you may have guessed is to test it and use it. If you plan on using it with your Arduino to add a bootloader, you may become slightly confused by how to connect it. The best guide to tell you which way to plug it in can be found on the Adafruit forum here. It provides pictures and descriptions just to make the whole process easier.

If you are starting out with this side of working with microprocessors, or even if you are experienced, you will no doubt find this fun and educational. Congratulations to Adafruit for producing such a useful tool and well done to Oomlout for working so well to distribute it over here!


Arduino Information

Once upon a time there was a page of links relating to Arduino and general electronics, since then it has evolved into something slightly more. There is no space for general links, information about tools, tutorials, projects and maybe even some resources for the above!

If there is something you think should be added or changed, say so here!

Arduino Guide


Election?

So the UK general election is soon, and as such all the wild claims are around. Now one side of it all I’m keeping an eye on is the science and technology side to it. One such area of this is broadband.

Recent claims by government say they want every home to have atleast 2mb broadband. I, and it seems, many others are really quite shocked by this. Such ideas in this age could be compared to saying everyone should have a rotary phone (Not such a bad idea if its this). With the current state of technology 2mb is slow, even for home users. While yes it is true that 50mb such as that offered by Virgin Media is fast, it is still very slow compared to the services available in other countries.

As pointed out by someone in a discussion earlier today, Britain’s consumer broadband is nothing compared to other countries. For example, on average 2mb in this country can cost the consumer around £15 per month and £30+ for 50mb. Meanwhile, if you hop on the plane, Zeppelin or other form of transport and go over to Hong Kong, you can expect to pay approximately (HK)$99 (As the time of writing, this is around £9) for 1000mb broadband. Yes thats right, £9 for 1 gigabit home connection (Source: HKBN).

So whats going on here? Elsewhere you can pay LESS to have more while we are practically struggling to get the whole country to be broadband enabled (I say all, this isn’t going to happen. Not when companies such as BT quote a farmer £64000 to have a broadband connection…). In the event anyone can find some sort of reason why the government and the candidates are seemingly ignoring the obvious on this one, please tell us. I’m sure the country wants to know why they want to give the least possible to everyone when the technology is there and relatively cheap.

Complaint over, next time, why they won’t fund more research into cheese distribution…

Edit:

A friend was kind enough to remind me about another issue that seems to plague British ISPs. Thats right, download limits. (and upload speeds, but that is another complaint). In this day and age, many people enjoy watching videos on the likes of youtube, why are ISPs limiting how much you can download. Lets think about this for a second, watch a few videos, download the necessary OS updates, check your emails etc. That is pushing it when you are limited to 5GB. Yes, some users will not use that much, the majority will however. Yes, some limits can be appropriate for running a website, but for consumers? Really? There is no need for it to be so low. It has been shown by the likes of Virgin and many others that a fair use policy works. If any one can explain this, go ahead, but we already know one excuse is just greed.


Copyright © 1996-2010 John Tiernan - Blog. All rights reserved.
Jarrah theme by Templates Next | Powered by WordPress

Page optimized by WP Minify WordPress Plugin