Leica-Wild t002

I'm not certain about your specific model, but I've taken those "fancy" instrument batteries apart only to find common cells inside them. If that's the case, you can run it down to batteries plus and they'll fix you up in about 10 minutes.

The cells are standard so any battery receller can work on it. If you are speaking of the onboard battery there are also a couple of rather unique fuses that need to be verified as good.

The biggest concern is the onboard memory battery. If that is dead the unit is dead until it is replaced and a complete recalibration is done. Not cheap.

Send a note if you have any questions to "ingram AT cfw DOT com".

Thanks. Subject gun is a T-2002, look like i misspelled it...... I have 2 chargers (14 hour) and gun doesn't turn on. i started my career on this thing and it's 10 times better than any of the other guns we've purchased in the last 20 years. I want to use it to do some baseline stuff.

Leica-Wild T2002

repairs, adjustments and updates are already in our overhead budget, so what's another $1000 if i have a 1/2 second gun work right.....

Leica-Wild T2002

Well, you've guessed the repair cost correctly. If it will not turn on it sounds like it's the main battery. The simple test for your battery is to put a volt meter on the 2 battery contacts to see what you have. If you get zero voltage it could be batteries are totally shot or it could be the fuse(s). They are the little silver cylinders (about 1/8" X 1/4") on the inside face of the battery. They pull out and could be tested with an ohm meter. And you need more than about 11 volts for it to even turn on.

Once the instrument comes alive the internal memory battery will be the problem if you get an error "8C" - which you won't find that listed in any user manual, only the service manual.

It is a good gun - that's for sure. However the T3000 is something else at 0.1 second.

I purchased a T2002 in January. It came with two GEB68 batteries. The batteries had been re-celled in October of 2013 and luckily the internal battery was still good, I don't have any idea when it was last replaced.

The GEB68 batteries were re-celled by:
Primecell
9343 US Rt. 220
Bedford, Pa 15522
Phone: 814-623-7000
www.primcell.com

The quickest way to see if it will turn on is to find a GEB70 or GEB71 that is the small or large red brick. I have a Leica Robot so I have several of the GEB70 and GEB71. Just use one of those and you will need a cable from the battery to the instrument. I just use the cable that the robot uses. It has a large Lemo at the battery and the two smaller lemo connectors for the instrument and radio, these connectors are smaller than the battery end. Either small connector on the Y cable will fit the power plug on the instrument. Just plug it in and press the on button, if it comes alive you are one step ahead. If it doesn't show an error code 8C you are way ahead, that will mean the internal battery still is functional. If it comes alive but has the 8C error code, press the CL (clear) button about ten or fifteen times. It will show a bunch of error codes but no need in trying to decode them. The operating manual does not show them. After you press the CL button a bunch of times it will usually stop at one of the codes and you can quit pressing the button, it might take fifteen seconds or so but will probably show the horizontal angle and the vertical angle. The horizontal angle is ok but the vertical will probably read waaaaaay wrong. Move the instrument around a bit in horizontal and vertical and then press the HZ V button, it should show a new horizontal angle and the vertical will probably stay about the same. It may come up with an error code of 50 or 51 that means an error in the angle measuring system, either code means contact Wild service department.

You are right the T2002 is a fantastic instrument. The T-3000 is about the same except it has a much better telescope part. There is a world of difference in the two telescopes. The T2000S has the large telescope but still has the old T2000 operating system. I have a T2000S, T2002, and T3000 I like the T3000 best. That is not to say the others are not good. They are all half second instruments and all will display down to .1".

Jerry Davis

Thanks Jerry (and everyone else). I actually do have a brick that is on charge now and we just got one of those new shops in town that say they can recall anything. i'll check them out tomorrow and at a last resort, have Flordia level and transit look at it.....again, thanks to everyone

Hi All,

Hi Jerry, wonder if you could help me. I bought a T2002 and have been running through it. I got it to boot up today for the first time. It gave me this very code, 8C, and I cleared it just as you, Jerry, said, and from what I can tell, it's working perfectly. But every time I turn it off and back on, I go through the same process (clear the 8C code). Is there anything I can do to prevent it from continually giving me this code?

Thanks!

Gene,
Get in touch with Dave Ingram, The only way I could get rid of the 8C code was by punching a lot of buttons and when I started it again it was to do all over. I think when that happens it doesn't have the codes in the instrument to correct what readings you see. It might look good but probably isn't what the internal battery keeps alive. Dave took two of my T-3000 instruments and I think he took a couple of his instruments to a fellow in New York and he replaced the battery and reinstalled the codes that are printed some where on the instrument, can't remember where. It took about six months to get the instruments back. Dave can give you the name and phone number of the fellow that did ours. I can't remember what the cost for the 2 T-3000 instruments cost but it was something about $1,350 for the two. He didn't do a complete certification of the instrument, that would have added a lot more to the bill, because the T-3000 telescope would have to be calibrated. If you had the T2000S you would have the same situation as the T-3000 telescope.

You might be able to replace the internal battery but remember when it is done you will need to find the corrections that are with the instrument, how they are put back in I don't have the slightest notion. Dave Ingram cam give you a lot more information. The main thing to remember those corrections have to be reinstalled so the instrument will have the proper corrections.

The easy way to power the instrument is to get a GEB-70 OR GEB-71 battery and a cord with the two connectors one for the battery and one for the instrument, the end connector for the instrument is smaller than the end for the battery. One thing to remember if you get it certified it will be certified with the internal power battery installed or without the internal battery installed.

I don't use mine, just have it to play with and wonder how much I would have to learn to make an attempt to use it in every day work. I always come away with the notion that I could never come anywhere close to using such accuracy. The T-3000 instruments I have were used in the Boeing Aircraft Plant at Wichita, Kansas. They never got to see the outside world of a land surveyor.

Good luck.

Jerry thanks for the response!