low-end scope
in [Design]
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From: Hammy on 3 Mar 2010 16:55 On Wed, 03 Mar 2010 13:04:13 -0800, Joerg <invalid(a)invalid.invalid> wrote: >> >> That's one mighty expensive battery option: >> <http://www.tesales.com/commerce/ccpc1009-2859-instek-gds-2000-battery- >> option-for-gds--2000-seri-gds-2000-battery-gds-2000-battery.htm> > > >Yeah, but you wouldn't want to know what mainstream manufacturers charge >for this stuff. It's a boutique accessory, very few people need it, >meaning low sales volume and somehow the NRE has to be amortized. Part >of life :-) Yes I have the 2102 and I was interested in the battery option too until I seen the price!!! To bad its so pricey it would be handy to have for portability and for certain measurements. All that should be needed is a low power smps and a switch and a battery how they milk $500.00 out of that is unbelievable. I guess 90% of that price is there installation fee? I didn't know Labour in Taiwan was so pricey :-) But other then that I have no complaints with the scope 2 years old now and no problems at almost daily use. For 1k Canadian its worth it.
From: Joerg on 3 Mar 2010 17:19 Hammy wrote: > On Wed, 03 Mar 2010 13:04:13 -0800, Joerg <invalid(a)invalid.invalid> > wrote: > > >>> That's one mighty expensive battery option: >>> <http://www.tesales.com/commerce/ccpc1009-2859-instek-gds-2000-battery- >>> option-for-gds--2000-seri-gds-2000-battery-gds-2000-battery.htm> >> >> Yeah, but you wouldn't want to know what mainstream manufacturers charge >> for this stuff. It's a boutique accessory, very few people need it, >> meaning low sales volume and somehow the NRE has to be amortized. Part >> of life :-) > > Yes I have the 2102 and I was interested in the battery option too > until I seen the price!!! > > To bad its so pricey it would be handy to have for portability and for > certain measurements. All that should be needed is a low power smps > and a switch and a battery how they milk $500.00 out of that is > unbelievable. I guess 90% of that price is there installation fee? I > didn't know Labour in Taiwan was so pricey :-) > > But other then that I have no complaints with the scope 2 years old > now and no problems at almost daily use. For 1k Canadian its worth it. I've got the 2204, the big one. Nice scope. I don't know what is part of this battery pack but I am not sure if it's as simple as a LiIon pack and a charger. There may need to be an inverter that makes the different voltages the scope needs. Look at it from a biz perspective: If 200 customers per year order this option (and I almost doubt it's that many) all the R&D effort needs to be recouped and typically that must be done over 3-5 years. Among other fields I work in medical electronics and there it's the same, low volume gear carries high price tags. Has to, else it wouldn't be designed. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: John Larkin on 3 Mar 2010 17:42 On Wed, 03 Mar 2010 13:04:13 -0800, Joerg <invalid(a)invalid.invalid> wrote: >miso(a)sushi.com wrote: >> On Mar 2, 5:22 pm, Joerg <inva...(a)invalid.invalid> wrote: >>> Paul Keinanen wrote: >>>> On Mon, 01 Mar 2010 12:32:34 -0800, John Larkin >>>> <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: >>> [...] >>> >>>>> I'd rather not have a scope that runs Windows and that needs two >>>>> boxes, drivers, a USB cable, and a mouse to do anything. A real scope >>>>> will most likely still be working 20 years from now. I like real >>>>> scopes with lots of real knobs. >>> Me, too :-) >>> >>>>> A USB scope would make sense in some data-centric application where >>>>> the waveform needs to be shipped into Matlab or some such in real >>>>> time. >>>>> John >>>> For me, built in battery power would be a critical requirement so that >>>> you could use it as easily as a multimeter. >>> Most DSOs such as mine come with a battery option. I didn't order that >>> but AFAIK it runs several hours on a charge. >>> >>> [...] >>> >>> -- >>> Regards, Joerg >>> >>> http://www.analogconsultants.com/ >>> >>> "gmail" domain blocked because of excessive spam. >>> Use another domain or send PM. >> >> That's one mighty expensive battery option: >> <http://www.tesales.com/commerce/ccpc1009-2859-instek-gds-2000-battery- >> option-for-gds--2000-seri-gds-2000-battery-gds-2000-battery.htm> > > >Yeah, but you wouldn't want to know what mainstream manufacturers charge >for this stuff. It's a boutique accessory, very few people need it, >meaning low sales volume and somehow the NRE has to be amortized. Part >of life :-) Our FLIR ir viewer came with two batteries. They look like old camcorder batteries but have different terminals. They have finally died, and FLIR wants $250 each for replacements. Luckily, the thing can be run from 12 volts DC, so we just use it plugged in. Battery life sucked anyhow, even when the batteries were new. They want $600 for a new charger. John
From: David L. Jones on 3 Mar 2010 18:27 John Larkin wrote: > I'd like to have a low-end scope or two to keep around the house, > occasional use only. I could use it at work, too, for simple analog > stuff, timing software execution, stuff like that. > > I was think about a Rigol DS1052E, 50 MHz color, 2 traces, about $535. > Or something like that. Any suggestions or comments? > > John The Rigol is only $404 at Dealextreme: http://www.dealextreme.com/details.dx/sku.30573 Plenty of people have bought it through there without a problem. Hard to beat for the price, it's a very usable scope. See my blog for a review and teardown. Dave. -- ================================================ Check out my Electronics Engineering Video Blog & Podcast: http://www.eevblog.com
From: Joerg on 3 Mar 2010 19:00
John Larkin wrote: > On Wed, 03 Mar 2010 13:04:13 -0800, Joerg <invalid(a)invalid.invalid> > wrote: > >> miso(a)sushi.com wrote: >>> On Mar 2, 5:22 pm, Joerg <inva...(a)invalid.invalid> wrote: >>>> Paul Keinanen wrote: >>>>> On Mon, 01 Mar 2010 12:32:34 -0800, John Larkin >>>>> <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: >>>> [...] >>>> >>>>>> I'd rather not have a scope that runs Windows and that needs two >>>>>> boxes, drivers, a USB cable, and a mouse to do anything. A real scope >>>>>> will most likely still be working 20 years from now. I like real >>>>>> scopes with lots of real knobs. >>>> Me, too :-) >>>> >>>>>> A USB scope would make sense in some data-centric application where >>>>>> the waveform needs to be shipped into Matlab or some such in real >>>>>> time. >>>>>> John >>>>> For me, built in battery power would be a critical requirement so that >>>>> you could use it as easily as a multimeter. >>>> Most DSOs such as mine come with a battery option. I didn't order that >>>> but AFAIK it runs several hours on a charge. >>>> >>>> [...] >>>> >>>> -- >>>> Regards, Joerg >>>> >>>> http://www.analogconsultants.com/ >>>> >>>> "gmail" domain blocked because of excessive spam. >>>> Use another domain or send PM. >>> That's one mighty expensive battery option: >>> <http://www.tesales.com/commerce/ccpc1009-2859-instek-gds-2000-battery- >>> option-for-gds--2000-seri-gds-2000-battery-gds-2000-battery.htm> >> >> Yeah, but you wouldn't want to know what mainstream manufacturers charge >> for this stuff. It's a boutique accessory, very few people need it, >> meaning low sales volume and somehow the NRE has to be amortized. Part >> of life :-) > > > Our FLIR ir viewer came with two batteries. They look like old > camcorder batteries but have different terminals. They have finally > died, and FLIR wants $250 each for replacements. Luckily, the thing > can be run from 12 volts DC, so we just use it plugged in. Battery > life sucked anyhow, even when the batteries were new. > Maybe you could have it re-celled at a larger battery store. But battery life won't improve, there are some things that just aren't meant to be run on batteries. Instek claims the big GDS-2204 can run about 3h on a charge but I guess that only applies if the battery is fairly new. Charging is done gently, over 8h. It's a 73Wh battery. > They want $600 for a new charger. > No surprise there :-( -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |