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Jobo ATL-2300 chemical pumping error



 
 
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  #11  
Old March 23rd 06, 09:02 PM posted to rec.photo.darkroom
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Default Jobo ATL-2300 chemical pumping error

Nicholas O. Lindan wrote:

Bingo -- that is where I would say the problem lies.


I'd look at the IC sockets first. Just as likely and easier to fix.

Ralf

--
Ralf R. Radermacher - DL9KCG - Köln/Cologne, Germany
private homepage: http://www.fotoralf.de
manual cameras and photo galleries - updated Jan. 10, 2005
Contarex - Kiev 60 - Horizon 202 - P6 mount lenses
  #12  
Old March 23rd 06, 09:02 PM posted to rec.photo.darkroom
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Default Jobo ATL-2300 chemical pumping error

Baxter wrote:

I am very glad I found this forum, I have had no luck when posting
tales of these woes elsewhere.


Oh, thanks. We old buggers are always happy if someone tells us that we
can still be of some use. ;-)

Ralf

--
Ralf R. Radermacher - DL9KCG - Köln/Cologne, Germany
private homepage: http://www.fotoralf.de
manual cameras and photo galleries - updated Jan. 10, 2005
Contarex - Kiev 60 - Horizon 202 - P6 mount lenses
  #13  
Old March 23rd 06, 10:16 PM posted to rec.photo.darkroom
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Default Jobo ATL-2300 chemical pumping error

Well I have been a bit daunted by the complexity of the machine, so
have decided to print out the helpful procedures at the Jobo USA
website so that I might minimise self-inflicted damage through
dissembly.

All ICs seemed to be seated correctly and not any obvious damage to
pipes/connections. Haven't found the wire sensor yet.

The other fact that I forgot to post, but on reflection would seem to
be relevant is that when performing a cleaning routine, the fault has
never occurred i.e. the bottles are emptied completely irrespective of
the volume of water I have put in.

Baxter

  #14  
Old March 23rd 06, 10:54 PM posted to rec.photo.darkroom
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Default Jobo ATL-2300 chemical pumping error

Baxter wrote:

The other fact that I forgot to post, but on reflection would seem to
be relevant is that when performing a cleaning routine, the fault has
never occurred i.e. the bottles are emptied completely irrespective of
the volume of water I have put in.


Ha! Here we are!

During the cleaning routine, the flow detection is disabled.

Here's what happens: the pump begins to work, a little liquid is pumped
while the detection time window lasts, then the program is interrupted
because the machine thinks there's no liquid.

No while you run to push the start button again, the little soup that
there is plays havoc with your film.

So, its either the sensor wire or, just as likely, an IC contact on the
control board.

Things should be a lot easier now.

Ralf

--
Ralf R. Radermacher - DL9KCG - Köln/Cologne, Germany
private homepage: http://www.fotoralf.de
manual cameras and photo galleries - updated Jan. 10, 2005
Contarex - Kiev 60 - Horizon 202 - P6 mount lenses
  #16  
Old March 24th 06, 12:42 AM posted to rec.photo.darkroom
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Default Jobo ATL-2300 chemical pumping error

Greg "Blank" - Lizard King. wrote:

Some interesting images Ralf where are these taken?

http://www.fotoralf.de/Bilder/Mallorca/htm/0130812.htm


All over the island. The one linked above on the way from Arta to
Betlem.

Ralf

--
Ralf R. Radermacher - DL9KCG - Köln/Cologne, Germany
private homepage: http://www.fotoralf.de
manual cameras and photo galleries - updated Jan. 10, 2005
Contarex - Kiev 60 - Horizon 202 - P6 mount lenses
  #17  
Old March 24th 06, 01:09 AM posted to rec.photo.darkroom
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Default Jobo ATL-2300 chemical pumping error

In article .com,
"Baxter" wrote:

Thankyou Ralf

I haven't used the machine for 10 days since I have been so cross and
frustrated! I seem to remember that a very small bit of fluid is pumped
(hence streaking where this has splashed onto film and given more
development), it gives up the ghost and so pressing the start button to
override relay then gets the rest across.

The frustrating thing is that it hardly ever seems to happen when using
water in the chemical bottles to fault-find and with no film in the
tank. Lulling me into a false sense of security, it then recurs once I
am using E6 chemicals and film......

The fact that it is intermittent would indicate electrical fault of
some sort wouldn't it? If so and being unfamiliar with these Jobo
machines, where is the relay situated? I have found, but not yet
checked the other items. Will endeavour to do this later tonight.


Do you have the Atl manual? The reason I ask its probably available
online as a PDF.
--
The things we hate most in life often turn out to be a mirror image
of ourselves. But if your going to hate someone Matt Clara says its
ok to hate him.

Findmedirectly - "infoatgregblankphoto.com"
  #18  
Old March 24th 06, 01:13 AM posted to rec.photo.darkroom
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Default Jobo ATL-2300 chemical pumping error

In article . net,
"Nicholas O. Lindan" wrote:

The bottle number on which the fault occurs varies, sometimes just a
single one (1, 2 or 3) and sometimes any two, or occasionally all 3 -
or even none!

It only beeps having correctly moved to the next stage and when trying
to pump that particular bottle. Pressing the 'Start" button then
activates the pumping process correctly.

There aren't level sensors in the bottles. You program the amount of
fluid and it performs a simple subtraction process to determine if
future runs are possible.

I seem to remember that a very small bit of fluid is pumped


Whatever is malfunctioning should be something that is common to all
three chemicals.

It sounds to me like the Jobo starts the action, detects something
has gone wrong, and beeps for help. Pushing the start button tells
it to try again and this time things go OK.

Before the Jobo malfunctions can you hear the pump running for
second or two to pump 'the very small bit of fluid'? Or is this
a spurt of the previous chemical that may be dispensed by the valves
actuating.

Is the fluid selection valve a rotary valve or are there valves
for each fluid?

Is there a sensor to detect fluid going through the pump/tubing?

Do you get air bubbles in the tubing?


The Atl 3 is set by the user to with draw a given preset amount of
chemistry it assumes you have at least that amount in the tank. It also
has a default that if left unset will pump from the tank the amount for
a given drum selection
--
The things we hate most in life often turn out to be a mirror image
of ourselves. But if your going to hate someone Matt Clara says its
ok to hate him.

Findmedirectly - "infoatgregblankphoto.com"
  #19  
Old March 24th 06, 01:15 AM posted to rec.photo.darkroom
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Default Jobo ATL-2300 chemical pumping error

Greg "Blank" - Lizard King. wrote:

Do you have the Atl manual?


Yes I do. Plus a disk directory with the complete service documentation
downloaded from JOBO USA.

Ralf

--
Ralf R. Radermacher - DL9KCG - Köln/Cologne, Germany
private homepage: http://www.fotoralf.de
manual cameras and photo galleries - updated Jan. 10, 2005
Contarex - Kiev 60 - Horizon 202 - P6 mount lenses
 




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