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avatar: Dim
Dim
61 posts
Replied to Dim's post on December 4th, 2014

Hi All,

my Hitachi U-2001 needs a new battery and calibration.Since i do not have the manual i would appreciate your help.

Thank you,

Dim

avatar: chromatology
chromatology
41 posts
Replied to Dim's post on December 4th, 2014

I do have the battery in stock, I will send you the instructions at the same time. Send me a private mail at richard7777@videotron.ca and we will organize your small repair.

avatar: fdutra
fdutra
4 posts
Replied to Dim's post on December 4th, 2014

Found the batteries at Batteries plus. The entire sled carrying the CRT, printer, etc plus keypad (a little tricky unplugging) have to be removed. The calibration codes are written in ink/pencil on the inside of the cover and need to be entered in the service menu.. The light shielding around the cell chamber may need replacing if it is the original,,, hopefully chromatology has them if you need them. I used weather stripping and validated with holmium glass. Much better to have factory rep validate and reset codes if you need to use the machine for anything but personal use.

 

avatar: Dim
Dim
61 posts
Replied to fdutra's post on December 5th, 2014

Quote fdutra

Found the batteries at Batteries plus. The entire sled carrying the CRT, printer, etc plus keypad (a little tricky unplugging) have to be removed. The calibration codes are written in ink/pencil on the inside of the cover and need to be entered in the service menu.. The light shielding around the cell chamber may need replacing if it is the original,,, hopefully chromatology has them if you need them. I used weather stripping and validated with holmium glass. Much better to have factory rep validate and reset codes if you need to use the machine for anything but personal use.

 

Thank you fdutra, is there a hint you want to share about removing the cover? I have unscrewed the two cross headed screws, raised the monitor, and tried to slide the cover out, without success.

 

 

avatar: fdutra
fdutra
4 posts
Replied to Dim's post on December 5th, 2014

Replaced battery a while ago and don't have daily access to the machine,,, that being said, if your talking about the main shroud that covers the entire unit, there are more than 2 screws. Check the bottom and back, Expect some resistance,,, you may have to spread the base of the cover. A well built machine without any proprietary "tricks" in construction.

 

 

avatar: erui
erui
11 posts
Replied to Dim's post on July 6th, 2017

Hi my friend. I have manual of Hitachi U-2000 and U-2001. Archive PDF

 

avatar: sergiof
sergiof
4 posts
Replied to Dim's post on July 27th, 2017

Hi Dim,

Just saw your post here and we´re facing the same problem with our Hitachi 2001, it´s showing the message "low battery" and we need to replace it. Wonder if you coul send me the specification of this battery, since there isn´t this information on the manual and we haven´t found it anywhere.

Thank you very much for any help you can give us.

KR

Sergio

avatar: Dim
Dim
61 posts
Replied to sergiof's post on July 28th, 2017

Hi Sergio,

it has been a while since i last changed the battery and i do not remember the type. If you take off the top cover and the keyboard, (as fdutra says above) you will see the battery (behind the keyboard on the main board). Once you replace it, from the main menu go to calibration and select wl calibration. Press 99 and then put in the numbers for spam and zero (written on the sticker at the back of the instrument). 

Good luck,

D

avatar: Daniel C.
Daniel C.
1 posts
Replied to Dim's post on September 29th, 2017

Hello everyone,

I am trying to perform a wavelength calibration on a U-2001 device. It keps giving WL calibration error at 630 nm. Any ideas what could be the origin of the problem? Just replaced a burned out D2 lamp with a used one, but the device gives OK for both lamps on the main screen when you turn it on. 

Daniel

avatar: chromatology
chromatology
41 posts
Replied to Daniel C.'s post on September 29th, 2017

You need to replace the battery which is backing the necessary parameter to have a functional instrument.

 

I can provide it.

 

Regards

 

Richard

avatar: sergiof
sergiof
4 posts
Replied to Daniel C.'s post on September 29th, 2017

Hello Daniel,

 

It may be happening due to a fail in the mechanic apparatus which adjusts the wavelength selected by the user. Try to do a wide scan wich comprises the 631 nm within and check if the same happens. It doesn´t seem to me it´s a problem in the battery. Our U-2001 here had a problem in this battery an it just got stucked in the first screen, during the initial calibration, displaying the message "Low battery". Unfortunatelly if yours does have a mechanic fail you might need to call Hitachi´s technical service.

Good luck.

Sergio

avatar: Ollote
Ollote
7 posts
Replied to Daniel C.'s post on November 27th, 2017

Hello Daniel! 

It seems you are familiar with the U-2000 device. I need your help,please!!!!

When I switch the equipment on I get an "D2 check error" and it stop there. I dont know what does it mean and what should I do. Can you or anyone advice what is the problem and how to go about to deal with it? 

avatar: nanalb
nanalb
5 posts
Replied to chromatology's post on December 5th, 2017

I have the same situation as Dim. The lamps seem fine but I get the calibration error. I'll try to find the battery and get a replacement, but am glad to have some advice/support!

avatar: Ollote
Ollote
7 posts
Replied to nanalb's post on December 5th, 2017

Hello

I dont know what happened, when I turn the machine On this time, it function quite OK. No error any more. I switched the machine OFF and ON for several attempts, no D2 check error displayed any more. I dont know what was the problem