What to Consider when Purchasing a Digital Multimeter

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The Digital Multimeter (DMM) is the most fundamental test and measurement instrument in the electronic technician kit or engineer’s lab bench. It provides a number of functions, the most common being resistance, voltage and current. Secondary functions can include temperature, induced current, low frequency measurement, and other routine tests needed to troubleshoot circuits.

DMM types

Many technicians use more than one digital multimeter, as they tend to be designed to suit a particular purpose in various environments. A DMM used in a clean room or laboratory is totally unsuitable for use in an outdoor environment or under harsh or hazardous conditions. In practical use, the DMM may need to be operated while wearing gloves during an ice storm, or may need to be handheld, extremely compact, and lightweight for portability. They can be rack mounted in a semi-permanent installation to be in close proximity to equipment that needs to be constantly monitored.

Here is an example of a DMM that can operate in temperatures below -40°C: The Agilent U1273AX.

U1273AX Specifications and FeaturesLearn more about the various features and specifications for the U1273AX.

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DMM accuracy standards

Some DMMs are functional and practical, even without routine regular calibration certification. When the tolerance of a resistor may be 10% or 20%, a DMM accurate within 3% is generally sufficient. In the days of analog D’Arsonval meters, parallax distortion and the vagaries of electromechanical movement could result in erroneous readings near 2 to 3%. DMMS are far more stable and immune to misinterpretation of the readout.

 DMM longevity

DMMs have a relatively high attrition rate. This is the result of multiple meters required by each technician in the field and not so much a failure of an instrument. DMMs are designed to be used hundreds of times a day, both in laboratory and field conditions. Field equipment is often subject to abuse from impact of a dropped instrument to total immersion in water and similar environmental hazards. Laboratory equipment needs to be replaced as technologies advance and evolve.

DMM features

DMMs are basically the same instrument, regardless of the make or model. What distinguishes one from another are cosmetic appearance and the user interactive interfaces. Each of these differences are highlighted as features. Not every meter can have every feature; it is up to the technician to know which configuration on a DMM is optimal for any given situation.

DMM advanced or enhanced features

Some typical enhancements include dual displays, RS-232, USB or IEEE computer interfaces, audible alarms or tone feedback, which enables the technician to keep his eyes on the device under test rather than on the meter. High-priced options include very tight measurement tolerances. Some enhancements can include backlit LCD displays, as opposed to LED displays. Induced current “clamp meters” and similar exterior measurement accessories are usually optional, but may be included as a part of a package. Some features include hold and store min/max readings, auto-ranging or auto-sensing circuitry and similar hands-free operation. If multiple and various readings are necessary, these features can offer a vast improvement over manual ranging and repeated button-pushing to change DMM settings.

Here is a DMM with a USB host port on the front panel: The Tektronix DMM4040.

DMM4040 Specifications and FeaturesLearn more about the various features and specifications for the DMM4040.

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 Advantages of used DMMs

Of course, this is where Used-Line comes into the story. Leasing companies, larger companies employing scores of technicians, or smaller small- to medium-sized businesses seeking to stay within tight budgets can be well-served by considering procurement of used and re-certified, discontinued models or factory-refurbished DMMs. This is a cost-effective solution that will serve the company now and into the future. All technicians have particular makes and models of test instruments that they have high-confidence with using every day. In field applications, many techs prefer Fluke and Simpson meters for their ruggedness, durability and useful features without resorting to gimmicks or unnecessary bells-and-whistles. Given that some DMMs can cost over $10,000, depending on the degree of precision and accuracy required, buying used or as-new discontinued instruments can make or break a budget.

 Selecting the right DMM

Choose the best quality instrument that meets your need. With higher-priced test equipment it is a wise idea to lease an instrument to ensure its suitability to the task. Realize that equipment turn-over for many of the top leasing companies is due to deprecating features or advancing technology. Leasing companies frequently sell their equipment to used-line.com clients in sufficient quantities to make offering them at steep discounts possible, with no sacrifice to name-brand quality, dependability and service.

We can’t exit this blog post without showing a Fluke. If you’re looking for 365-day stability, have a look at the Fluke 8508A reference multimeter.

8508A Specifications and FeaturesLearn more about the various features and specifications for the 8508A.

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Where Can I Find a Clintec Automix 3+3 Compounder?

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Probably not at a Walmart store.

And why would I want a Clintec Automix Compounder?

Well, personally, I don’t actually need one – but – according to the stats on Used-Line, quite a few of our users do.

Before we look at the statistics, let’s try to describe what a Clintec Automix Compounder is. It is not a gas chromotograph, which was discussed in our most recent blog about the Agilent 5975. After doing your compounding thing with the Clintec Automix, you could then use the Agilent 5975 to separate and analyze what you compounded, but why would you want do to that? You would be reversing the process, wouldn’t you?

The Clintec Automix Compounder is a parenteral nutrient compounding system. If I understand this correctly, parenteral nutrient compounds are compounds that are administered by circumventing the digestive system. The compound is often fed intravenously.

Saline solution for IV

Saline solution for IV (Photo credit: Wikipedia)

Most of us are familiar with IV (intravenous) lines, but are less familiar with the processing of the mixtures that are inserted into the IV lines. This is where  compounding systems come into the picture. The Clintec Automix 3+3 Compounder is one such system. It is an automated system, and it can handle the processing of large volume ingredients, such as water and glucose.

Now let’s move on to the statistics.

Last month, July 2013, the terms, “clintec automix” were used in Used-Line searches 199 times. These two terms used together took up position number three in the top 100 search terms entered by visitors. Similarly, Google Analytics revealed that “clintex automix” was used in 72 Unique Searches on Used-Line, placing the terms in position number one for the month of July.

July 2013 Stats for search term, "Clintec + Automix"

AnalyticsCountUnique SearchPosition
Google 721
Used-Line1993

So where can you find a Clintec Automix 3+3 Compounder? On Used-Line, of course!

If you are in the market for a Clintex Automix compounder (you may be one of the 72 unique searchers who contributed to our July statistics), Toronto Surplus & Scientific has listed a Clintec 2M8286 Automix pump module on Used-Line. Toronto Surplus & Scientific Inc. has provided the following specifications on their own website:

  • Delivery Volume Range: 10 – 5000 ml
  • Specific Gravity Range: 0.50 – 3.00
  • Dimensions: 20.5″ W x 12.5″ D x 21.5″ H

If the pump module is not specifically what you want, you can post your own want list in the Used-Line Wanted System, which sends out a daily list of wanted items to all registered dealers. We will be talking about the ULWS soon! Watch for it!

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Agilent 5975 Gas Chromatograph Analyzes Vegemite Yeast Extract

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I know this is a cliche, but either you love it or you hate it. We’re talking about Vegemite. Actually, I’ve never tasted Vegemite, but I love to eat Marmite, a British and South African almost-clone of the Australian Vegemite. The rest of my family hates it. How can you kill a piece of toast with that extremely salty, hard-to-smear, strong smelling stuff, they ask?! In answer, I tell them that the trick is to spread a generous helping of butter on your toast, followed by a thin layer of Marmite. (If you’re avoiding either fat or salt, forget about it.)

But there is no need to convert the converted and I doubt I’ll be able to sway those diehard Marmite/Vegemite objectors.

I have to “import” Marmite from South Africa, where it is kosher. I hope my cousin does not have to pay for the extra weight of her luggage when she brings me my little jars of Marmite, but the good news is that it lasts FOREVER, so she does not have to satisfy my yeast extract fix too often.

Here are two of my current jars of Marmite.

Marmite

Marmite in my kitchen.

 

 

 

 

 

 

 

 

So where does Agilent come into this culinary discussion? Well, I don’t know if the recipe for Vegemite has been as closely guarded a secret as the recipe for Coca Cola, but Renée Webster, an Australian pursuing her doctorate, has analyzed the contents of Vegemite to find the distinct chemical compounds that produce the unique odor of the much-loved (or much-rejected) yeast extract. The Agilent 5975 gas chromatograph played a major role in the Vegemite analysis by breaking up this smelly (but delicious) mass that smells distinctly of – well – Vegemite – into more than 35 compounds that smell of everyday items such as flowers, wine, and leather, and which seem to have no connection to the smell of the yeast extract itself. I’m not sure if I really needed to know what Vegemite (and possibly Marmite) is composed of. You would not normally catch me spreading anything that smells of wax – or rancid fat (yes, rancid fat really is one of the detected odors) – or sweat – on my toast!

Renée Webster conducted her analysis in three stages:

  1. Sampling: Using a kitchen knife, a Solid Phase Microextraction (SPME) sampler, and a lab oven. I wonder if she regrets sacrificing to science the sample of Vegemite she needed for her experiment – never to be spread on a piece of toast!
  2. Separation: Using an Agilent 5975 GC/MSD (gas chromatograph with mass spectrometer) to separate the Vegemite compound into its multiple chemical components for individual analysis. The 5975 is built with 7890 GC technology. The gas chromatograph is responsible for the separation part of the process.
  3. Analysis: Using the mass spectrometer that, together with the included software, analyzes the detected chemicals. Hmm, couldn’t she simply use her olfactory system, that is, her nose, instead of the mass spec? Well, that might not be ideal if you want exact measurements, percentages, and specific odor descriptions.

According to the article, Agilent Helps Uncover Vegemite Mystique, on the Agilent News Hub, the GC performs the separation, and the mass spec does all the detection work. I’m guessing that with over 35 compounds and odors to detect, the 5975 GC/MSD is ideal because it allows for quick column changing; thus speeding up the detection and analysis process.

Here are a few of the top chemicals that were found in Vegemite, including their accompanying odors.

Vegemite Compound Analysis (Top three by percentage)

Percentage of TotalChemical CompoundAssociated Odor
43.8ethyl decanoatefruit, oil, sweet, wax
16.6ethyl trans-4-decenoatewax, leather, pear
12.5octanoic acid, ethyl esterfruity, fatty, floral, green, menthol, anise

To see the complete results of the separations and each component’s odor, you can read the Guardian’s Australia FoodBlog on the Vegemite analysis. As well, for details on the process Renée used to conduct her analysis, view her own blog.

If you are now inspired by the 5975’s work on Vegemite, take a look at the list of 5975’s currently available on Used-Line.

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Opting for an Optical Tme Domain Reflectometer (OTDR)

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Choosing an Optical Time Domain Reflectometer (OTDR) is very similar to the process used in selecting a new vehicle. The more options that are included – or added – the more it will cost. Some OTDRs are built with rugged utilities for heavy field use, others are delicate precision instruments suitable for laboratory use. Any high-quality OTDR is a significant expense; most cost as much – or more – than the majority of new motor vehicles. The same amount of thoughtful consideration used to buy a car should be used in selecting and buying an OTDR.

An OTDR is a complex instrument incorporating optical frequency pulse generators, a spectrum analyzer, and supporting user interface to determine the location of faults, relative impedance, signal degradation due to attenuation or deformity in the fiber, and often has a computer interface or plug-in modules to allow a separate computer access to the test and measurement device and data for more sophisticated online or offline analysis than may be available from the instrument alone.

Operating Environment

The first and most important consideration is where and how the OTDR is deployed when it is in use. Exposure to extreme weather, limited availability of electric power, and the required degree of portability eliminate any OTDR that isn’t ruggedized, battery powered, and reasonably sized, such as a hand-held. A rigid bench, wheeled carriage or rack mount unit used in a power- and climate-controlled clean room or engineering laboratory environment dictates a completely different set of options. It may be required that the OTDR is dual use, and trade-offs must be considered to determine the best value balanced against the risk of potential damage when in transport or in active use.

Operational Capabilities

Acquiring an OTDR should not be solely based on financial or budgetary considerations. Cost does not necessarily translate to effectiveness; a very expensive unit can be totally unsuited to measure the cable under test. If a unit is simply to be used to determine the location of a break in the cable and not more esoteric measurements, such as impedance mismatch, kinks or sharp bends, attenuation or signal losses, then it can be much less expensive than a full-feature instrument of otherwise similar size and utility.

New, Discontinued, Factory Refurbished or Used: Which is the best choice?

The only reasons to buy a new, bleeding side of the cutting edge technology are that the company is a manufacturer or the application is mission-critical. Often, a discontinued instrument offers substantial savings and superior value – often 30% or more – especially if it is a brand-new unit, simply no longer manufactured. A factory refurbished instrument meets or possibly exceeds the original specifications. These units are typically factory warranty returns, leased instruments, trade-ins for upgrade to newer models and similar light-use applications reconditioned by the OEM for resale. Savings of 30% to 50% are not unreasonable expectations. Used instruments can offer very high value, however, due diligence is required to ensure ample time – typically 30-90 days – for inspection and return privileges if the unit fails to perform. Cosmetic exterior wear and tear consistent with its operating environment are not uncommon. Used units that perform to specification can realize values from 60% to 90% below the original MSRP.

Brand name or OEM?

Some people are comforted by particular makes and models of test equipment. In many cases, the difference between a name-brand device and its OEM equivalent are cosmetic – the internal circuitry is identical. The wise buyer will consider the specifications before the name brand, the reliability and integrity of the source of the equipment and the particular requirements of the technician or engineer that will use the equipment. The length and scope of any warranty or guarantee must also be considered, especially with used instruments. Is the warranty a factory warranty or outsourced to an unspecified third-party?

Relative value

An OTDR can easily cost 20 to 50 thousand dollars or more. Used OTDRs can also cost 40 thousand dollars or more. A capital expense item of the magnitude of an OTDR can have significant tax implications. The ROI of a used unit often is much faster than a similar new instrument and it can have a steeper depreciation. Before purchasing an OTDR, it is suggested that the engineering staff that will be using the device, the accounting staff that will handle the budgeting and payments, and the executive officers that will have to justify the expense, be in agreement. This can be difficult; however, the use of an independent third-party systems consultant can often provide assistance in coordinating the various aspects of an acquisition with minimal impact on limited corporate resources. Before opting for a low-cost solution, consider the functionality, specifications, and usability requirements of the tasks that the instrument will be used for.

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Hearing is Seeing – with the OrCam

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Imagine yourself walking to the refrigerator of your local supermarket, with a quest for 1% strawberry flavored yogurt and not being able to distinguish between the 0%, 1%, 3%, and full fat containers, not to mention the chocolate, coffee, vanilla, strawberry, peach, and natural flavors. Why not? Because you are visually impaired.

Or.

Entering a library to check out Volume Three of War and Peace, and not being able to distinguish between the titles of the four volumes (plus epilogue) of this huge literary masterpiece.

At this point, you should be asking how people who are visually impaired are able to read non-Braille books anyway.

So, read on – and listen up!

OrCam, a young (2010) Israeli company has designed an audio device that uses visual sensors to light up the world for the visually-impaired. The device, consisting of a “seeing” sensor and an audio output that externally uses the little bones of the ear to conduct the signals coming from the sensor, is attached to a pair of glasses – yours or theirs – creating what OrCam cites as Artificial Vision. Just point to the object you want to read or see, then the OrCam sees it for you, and reads it to you.

Watch the video to see how the OrCam works and what it can do.

Here are some fascinating features of the OrCam:

  • Easy to learn and easy to use.
  • Reads to you from books, newspapers, and product descriptions.
  • Lets you distinguish between similar looking objects, for example different brands of cereal.
  • Is pre-programmed with a number of commonly known objects.
  • Can learn or edit objects based on your own familiar surroundings.
  • Can learn to recognize people you know and to remember their names.
  • Works with your own prescription glasses or frames from the company. Can even work with sunglasses.
  • Can operate with a hearing aid.
  • Intended for the visually-impaired but also a powerful aid for people with dyslexia or for sufferers of memory loss.
  • Currently priced at $2500, which seems like a small investment for such a huge quality-of-life improvement.

And here are some musings about the product:

  • Amazing how the sensor can distinguish between red and green traffic lights. But how about black and blue socks in a drawers? Does it have the sensitivity to read (and learn) duller colors or less distinguishable colors?
  • Can the sensor read script or handwriting?
  • Does the device use OCR, that is, Optical Character Recognition? Or is it really Object Character Recognition? In other words, is the same technology used to sense characters (such as letters and numbers) as well as objects, such as people, food products, and vehicles?
  • What powers the Orcam? How many hours of use are provided?
  • Although currently programmed to work with common, everyday objects, can it potentially be used in specialized areas of research; designing it to work in areas where more than 20/20 vision is required? Or where unusual, uncommon objects can be programmed to be recognized?

My late Father was visually-impaired, and then legally blind for most of his adult life. How he could have benefited from an aid such as this!

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Six Top Reasons for Listing your Inventory on Used-Line.com

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Here’s the windup...

BaseBall Windup

Baseball Windup (Microsoft Office Image)

You mean you need a reason? Ok, so fine, we’ll give you six reasons. All six reasons are based on points that Used-Line customers have already made about Used-Line’s portal for used test, lab, and semiconductor equipment.

Used-Line appreciates customer feedback, both positive and negative. Well, mostly positive! But we are always ready to learn from our customers.

Let’s make one thing clear. There aren’t only six reasons for listing your equipment on Used-Line.com. We’re simply listing the TOP six reasons here. Our blog post would become a lengthy dissertation if we were to list them all. And you would probably get the point by the time you read Reason #73.

The six reasons we chose are those that we garnered from our customers’ feedback. You can read what our customers have said in their own words in our customer testimonials. Thank you, Used-Line customers!

…And here’s the pitch.
Baseball Pitch

Baseball Pitch (Microsoft Office Image) 

1. EXPOSURE

Used-Line exposes you to a large potential customer base. Used-Line visitors, whether dealers in the market for buying or selling equipment, or private buyers and sellers, learn to trust those users they conduct transactions with on Used-Line. It is easy on Used-Line to build your own network of long-term trustworthy dealers and customers because of the solid framework for conducting your business and because of the vast selection of equipment listings.

2. ADVERTISING RESOURCES

Billboards. Banners. Listings. Your own promotions.

Plane Banner

Plane Banner (Edited Microsoft Office Image)

The advertising packages available on Used-Line are both numerous and flexible. You can be up and running in a few minutes. A first-time visitor to the site can advertise his equipment in a listing right away, simply by completing an online form. For our more sophisticated brand boosting options or for a custom-designed strategy, you can contact a Used-Line Sales Rep directly. Used-Line understands that its users have many different requirements and budgets and, as a result, Used-Line offers many flexible options.

3. EXPANDING BORDERS
There is no need to restrict your customer base to a couple of city blocks.
Of course, borders in our world have fallen away with the globalization of markets via the Internet. However, Used-Line’s international Dealer Directory provides instant contact with a vast listing of registered dealers from all over the world. This both broadens your customer base, and gives you access to hard-to-find equipment that may be available in locales at a distance from your physical location.

4. TRIAL PERIOD
The one-month free trial of Used-Line advertising lets you test the system and examine your results. You should be able to gauge the potential ROI during this first month, as well as view your results with the Used-Line Statistics feature.

5. PRICE
Price means different things to different people. Price can mean the cost of your expenses for selling equipment via Used-Line. Price can mean the selling price of your equipment. Whatever it means to you, on Used-Line, you can find the price that works for you. If your equipment is on the lower end of the pricing scale, you will be able to find a pricing scheme for selling your equipment that may cost you nothing or next-to-nothing, but which will get you top dollar for your equipment. On the other hand, you can choose a budget-friendly package with the best results for selling your high-end equipment.

6. CUSTOMER SERVICE
A smile. A fast response time. Friendly advice. Flexibility. Full attention to your specific requirements. Professional. Goes the “extra mile”.

Need we say more?


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Three Test & Measurement Instruments You Can Create with a Smartphone

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Should I be embarrassed to even admit that I don’t own any kind of smartphone? I own a Kindle. Does that count? Somehow, I don’t think so.

But despite not being able to try this out for myself unless I borrow my brother-in-law’s iPhone or my  niece’s Android phone, this is the first thing that has really tickled my fancy about smartphones (aside from Waze).
3 Test & Measurement Instruments You Can Create with a Smartphone Signal Generator, mixed signal… Click To Tweet

Test & Measurement Instruments

Test & Measurement Instruments

Anyway, back to the topic. I’m talking about turning your smartphone into a test & measurement instrument. Not a surprising development. And not that new, either. For some time now, we’ve been watching T&M instruments approach the size of smartphones. Handheld T&M instruments, while not necessarily offering the type of specs you’d find on a benchtop, have been finding their niche in the market as engineers are called upon more and more to leave their benches and go out into the field without the inconvenience of a heavy bag.

I don’t think smartphones are ruggedized enough yet to withstand the conditions that handheld T&M instruments are built for, although according to an article in the National Instruments Developer Zone, smartphones do have the potential to at the very least take over handheld  meters in the field.

Anyway, let’s take a look at just a few sample products (there are many more out there), and see what we can measure with a smartphone.

 The ‘Scope on a Phone

This should be a cinch, right? Simply show voltage over time? Yes, but what scope leads do you use? Do you need some sort of external hardware module? If you short two pins on your Device Under Test – will you fry your smartphone? What happens if your phone rings while you’re checking the output on pin 3 of your 7400? (I did not invent this question!)

In 2010, Onyx Apps introduced Oscilloscope 1.0 for iOS. The write-up on DailyAppShow describes the features and capabilities of this app, which can also generate sine, square, triangle, and sawtooth waveforms up to 22 kHz. Instead of using the  audio input, which is somewhat limiting in terms of sampling and frequency, the Onyx scope app uses the microphone or a device plugged into the microphone input. Today, Version 1.9 is available. This app offers many of the typical features you would find on a desktop oscilloscope, such as triggering modes (Normal, Single, and Auto), screen capturing ability, reference signal calibration, and more.

The Mixed Signal ‘Scope on a Phone

Believe it or not!

How did they do that? We can thank Oscium for its Model iMSO-104 mixed signal oscilloscope (MSO) for iPad and iPhone, which consists of a module that includes one 8-bit analog channel and a four-input digital harness.
3 Test & Measurement Instruments You Can Create with a Smartphone Signal Generator, mixed signal… Click To Tweet
You might need something a little more serious for devices in the GHz range, but with a 5 MHz analog bandwidth, a sample rate of 12 MS, and the ability to instantly probe a circuit from a tiny device powered by an iPhone or iPad, who’s complaining? The software app is super user-friendly, replacing knobs and buttons easily with those adept key strokes and finger swipes.

Here are some interesting pointers I learned from the FAQ on the Oscium site:

  • The analog channel can be used for measuring AC or DC. Maximum voltage range is -40 V to +40 V (10x mode).
  • Digital threshold is 1.7 V (fixed).
  • Triggering is available up to 100 ms. What’s really cool is that if your timescale goes higher, the triggering menu disappears. Although this can be scary when you first encounter this phenomenon, it’s a user-friendly tip once you’ve learned why or when this occurs.
  • The IMSO-104 is supported by iOS version 5.0 or higher.

 A Do-It-Yourself Signal Generator

Test & Measurement Instruments

Test & Measurement Instruments

An article that appeared this month in an EDN Network newsletter does not consider the 20 Hz to 20 kHz frequency range of a smartphone’s audio plug to be a limitation. There’s a lot you can do in this range. The article suggests that many of the components in medical devices fit into the lower end of the range. Here are some examples found on the National Instruments site:

  • ECG (or EKG): 0.01 – 300 Hz
  • EEG (electroencephalogram): 0.1 – 100 Hz
  • EOG (electrooculograph): 0.1 – 10 Hz
  • EMG (electromyograph): 50 Hz – 3 kHz

With the availability of hardware and software for less than $20 (not counting the cost of the smartphone!), and some light labor (get out your soldering iron) you can be up and running in no time with two channels (your left and right stereo connections) generating sine, square, and sawtooth signals.


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On Views, ClickThroughs, and RFQs: Tracking your Listings on Used-Line

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If you’re wondering why your listings on Used-Line.com generate many VIEWS, but a very low CTR (Clickthrough Rate) with a decided lack in RFQs, then you are asking the right questions.

How do you check if your ad (listing) is getting the views but not the clickthroughs?

Used-Line now offers a Statistics service that can show you all the activity taking place on your listings – both individual and overall listings. We previously discussed how to write a good sell ad for Used-Line. Now let’s find out if you really do need to work on your ads – or if, in fact, you are doing OK.

The new Used-Line Statistics service can tell you how your listings are doing by providing you with:

  • Instant views of the effectiveness of your listings overall
  • The ability to drill down into the specific statistics of individual ads

Okay. So how do we retrieve all this important information?

To view overall Statistics of all your Used-Line listings for each month

  1. Log in to your Used-Line account.
  2. To view overall statistics of all your listings, click Statistics under My Used-Line on the left side of the page. View statistics for your total listings for each month in the following four graphs:
    • RFQs received: Indicates how many Used-Line buyers sent you a Request for Quote (RFQ) for items you advertised.

      RFQs received

      RFQs received

    • Views – product pages: Indicates how many potential buyers saw your postings.

      How many users viewed listings

      How many users viewed your postings

    • Click-throughs to site: Indicates how many Used-Line visitors visited your company website.

      Number of click-throughs to your site

      Click-throughs to your site

    • Click – view phone: Indicates how many Used-Line visitors clicked the Seller phone number button in your ads.

      Number of users that clicked your Phone button.

      Number of users that clicked the Phone button.

To view statistics for your individual listings

  1. If you have not already done so, log in to your Used-Line account.
  2. To view individual listing statistics, click My Ads under My Used-Line on the left side of the page. Each ad is in the ItemID column in the My Ads tab. You can view the specific statistics for each of your ads in the four columns to the right of the ItemId column:
    • Views: The number of potential buyers that viewed the ad since it was first posted
    • Site: The number of Used-Line visitors that visited your company website by clicking the Visit Website button in the ad
    • RFQ: The number of RFQs that have been sent for the item you described in the ad
    • Phone: The number of Used-Line visitors that have clicked the Seller phone number button in the ad

Note: At times, you may want to update a listing because of new or changed information. This is fine, as long as you realize that your listing will be reset. When a listing is reset, the statistics for that listing are reset. As a result, only the statistics for the most recent version of your ad will be shown.

So, let’s get tracking!


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Wearing the Internet, or, Do I Need an Eye Exam for Google Glass?

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Yes, I know everyone has already written about it. Google Glass is old news (not really, it’s new news -but it’s old in that everyone knows about it already). It’s passé (writing about it, that is). But I just can not pass up on anything that looks so Borglike. So, resistance is futile. You’ll have to read this umpteenth blog on Google Glass.

When the term, “wearing” Google Glass, was first coined, I must admit I expected some sort of shirt made out of opaque glass with your choice of colors. Well, at least, I did get one thing right – the color choices. Right now, you can get Glass in Charcoal, Tangerine, Shale, Cotton, and Sky. It wouldn’t surprise me if you can find matching colors at the Gap.

Right, so it’s not a shirt. It actually looks like goggles. Strictly speaking, one-eyed goggles. Even more strictly speaking – right-eyed goggles. I don’t believe there is a lefty version yet. I guess they couldn’t call it Google Goggles, because Google Goggles already exists as a mobile application that sends images to do your searching for you. Which I’m guessing (I’m not that sure) Google Glass can do for you, or if not now, will do so in the near future.

I’m not here to review Google Glass. I couldn’t possibly do that without trying it out. Just google Google Glass and you’ll find all the reviews you want. I’m hear to express my fascination with the concept of actually wearing something that you can chat to, ask directions of, send commands to, sent text messages with, photograph with, share stuff through, check stuff with, get information from, search with. Look, Ma, no-hands Internet! I’m sure Ma is thrilled.

l just have one kvetch. Why is everyone calling it Glass? As in, with Glass you can can send videos in real-time. Glass lets you send text messages. Get your flight arrival information from Glass. Why is Glass personified? Glass isn’t my next-door neighbor. Glass isn’t even a Borg. It’s just a piece of equipment.To me, glass is that ubiquitous substance that you make out of sand and it’s only capitalized when it’s the first word in a sentence. Google Glass is not (yet) ubiquitous and I’m sure it will take a while before I can pour my soda into it.

But I look forward to the day when Google Glass will get sold on Used-Line!

And, no, I doubt you need an eye exam to wear Glass. But what do you do with your prescription glasses while wearing Google Glass? Seems it could be a little awkward wearing Glass together with your eyeglasses. Do you need to wear contact lenses? Have laser eye surgery? Well, I shall have to go and google Glass and find out!


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Why not rent? (Part two of two)

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In the last blog, I introduced a  February 2013 Scope Junction article that delivers the results of a survey on scope rentals. Readers were asked how often they had rented an oscilloscope. Of the 152 users who responded, more than 53% answered in the negative – they had never rented a scope.

Part One of this blog discussed a couple of points to consider if you are thinking about renting or leasing equipment instead of purchasing. Affordability was weighed against cost-effectiveness and the number of variables that can impact the ultimate cost of an instrument . As well, predicting the future of the industry was considered a factor in rental decisions.

Here are a couple more considerations.

Flexibility. You can rent state-of-the-art equipment that your budget does not allow you to purchase. For specific projects with stringent high-end specification requirements, a short-term rental lets you perform specialized tasks that you normally would not be able to run without the unique instrumentation features or specifications required for them. And – without breaking the bank. Although the flexibility of this type of short-term rental is attractive, it does demand more than a comfort level with the specs in order to match those required by the project with the capabilities of the instrument you intend to rent.

Test-drive an instrument. While renting, you can gauge an instrument’s performance strengths and weaknesses in your lab. Many instrument dealerships offer both rental and leasing terms. After leasing for a particular time period, you may be offered purchasing options at reduced terms. At this point, you should be able to clearly assess the suitability of the instrument as a permanent fixture in your lab.

And now for a little bonus tidbit. Or should I call that tipbit?

How to Find Dealers that Rent Out Equipment on Used-Line.com

The Used-Line Dealer Directory lists more than 900 dealers. How do you locate those that do offer rental equipment as one of their services?

  1. On the Used-Line.com home page, click DEALER DIRECTORY in the column on the right side of the page.
  2. In the Dealer Directory, use the filter on the left side of the page to choose the type of equipment you need: T&M, Lab, or Semi.
  3. Narrow your search further by Location and by product Specialization.
  4. Open the Services list, then select Rentals to view all the companies that offer rentals in the type of equipment you need.

    DD Services with Rentals

    DD services with rentals

 


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