EBME Forums Forums Maintenance Test Equipment Fluke IMPULSE 6000D/7000 are terrible testers

I disassembled this analyzer, its system is very complex.I don't understand why such a complex DSP chip is needed for a simple test principle.The main problem is that it has a very high failure rate.
I disassembled the machine, I hope to remind friends who want to buy.
Stop buying their analyzers, multimeters do work fine but not biomedical analyzers.

Yes; I guess we've come a long way since discharging into a hefty wire-wound 50 ohm resistor with a neon across it.

PS: I notice that the resistor is still there! But no sign of the neon.

Anyway, could it test this one?

Did you notice that the 50 ohm resistor, its power is very small。I don't think it's necessary。As a test load, I think it should be bigger to have more headroom.But with the latest of these analyzers, they've strayed from

For more:- see here.

DSP:- Digital Signal Processor.

Well, it's in a BGA (Ball Gate Array) package (so not easy to remove and replace) ... but what makes you say it fails frequently?

Otherwise, I agree about the complexity of the tester. It makes me wonder why the designers do this.

Let me briefly describe flukebiomedical's failed design. I may not understand the sense of luxury and advancedness they think.
NO1:
Use "soft shutdown" design, the battery uses NiMH battery.What I mean by "soft on/off" is that the motherboard is always powered by the battery, and the motherboard is in a low power state after shutdown。In normal use, we press the power button, which actually triggers the main board to pull down the level, and the main board is activated from the sleep mode.I think the premise of this design is to ensure that the motherboard consumes very little power in sleep mode, at least the battery is fully charged, and the power loss is very small (for example, 1%) when the motherboard is in sleep mode. If it consumes a lot of battery, it will fail.
But the actual 6000D or 7000, fully charged battery can only last about 1 month (standby)(new battery).
The next thing that makes people most angry is that when the charging adapter is used when there is no power, it cannot be turned on after it is fully charged (the red light turns to yellow light), and the battery needs to be separated from the motherboard. After reinstalling, it can be turned on successfully. In my opinion Seems like a reset action, but it doesn't do it automatically

NO2:
Strange structural design.
To take out the battery, first remove the upper cover (display and buttons) and then remove the main board to separate the connection between the battery and the main board. There is no special battery compartment design.

The bottom of 6000/7000D is a black metal plate.
The yellow plastic case is just to support the battery and connect to the motherboard.
The internal motherboard is mounted on a black metal bottom case.
So when we go out to use, if there is a regular collision during the handling process, the motherboard will actually resonate inside.(by regular bumps I mean normal movement shocks, not deliberate or accidental falls)



In order to make it easier to understand, I drew a picture by hand, I hope you can understand it

That's an interesting analysis.

Can I be the only one who's wondering why a defib tester needs a "sleep mode"?

But things may be even worse. I've read that Fluke recommends that the battery should only be changed by a Fluke authorized service centre. Otherwise, both the warranty and calibration will be void. Naturally they charge a handsome amount for such a service.

Sometimes (often, in my opinion) "Less is More".

Many people don't notice this problem. Because many 6000D/7000 assets belong to the country or unit, workers who use 6000D/7000 will not pay attention. Only a tech-savvy 6000D/7000 individual owner would care about that.

Usually, we will not disassemble the new host in the first year after use, because the disassembly will destroy the warranty label, and the warranty or calibration commitment promised by the manufacturer will be invalid.
We take the machine apart after a year or when it breaks down. Because after one year, the warranty period promised by the original factory has expired. Private owners can decide for themselves.
Under normal circumstances, individual users will not pay for warranty services, and some national or collective users may purchase regular original factory warranty services.Because the service is very expensive.

The most annoying thing is that the original factory does not correct this common fault, and the 7000 I bought is the same phenomenon.
If you contact factory repair, they will just replace the motherboard, but the new motherboard is still the same

Well, the "original" DNI Impulse 3000 was certainly a lot simpler (was there ever a 2000 or 1000?). It needed a 9 volt PP-3 battery, if I remember correctly.

It seems that the first model of DNI was 3100B, then came 3100, 3100 looks very similar to BIOTEK QED6, then came 4000, I think 4000 is the most classic generation, and then came 6000D and 7000

flukebiomedical may be more for commercial profit than machine durability.
So after flukebio acquired these analyzers, it is difficult to reappear classic models, people feel that they are just simple tools, not long-term cooperation "partners"