Products > Test Equipment
Brymen 257S lost calibration data
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Sjokolade:
Two days ago I had to contact Brymen again as Tme is not responding to my emails.


--- Quote ---Sorry to contact you again but Tme has not replied to me regarding postage for this item - I sent them mail November 24 and December 4 but still no reply from them.

How can we fix this ?
--- End quote ---

As always Brymen replies are fast.

--- Quote ---Hello,
 
I have informed our direct agent about your case. Hope it will help.

Best Regards
--- End quote ---

The Polish Brymen importer contacts me.


--- Quote ---Hello,
 
I received information from Mr Gary XXXXX that you have some problems with your BM257s, which you bought in TME.
We are official importer and distributor of Brymen meters in Poland and in this is why we perform warranty repairs for TME.
 
You can choose one of two ways to solve your problem:
1. Trying to receive reply from TME. I am not sure, but probably you should arrange the shipment to their office on your own. In fact after you send the meter to them, it will be forwarded to our service. After that we would send it back to TME. It would take some time probably.
2. You can send the meter directly to us. Unfortunately you would have to pay the cost of shipping to our service, but warranty repair and return shipment cost would be on our side.
 
I suggest second solution to save time, as you wait so long by now.
If you decide to choose this option, please just send me the message including your Brymen's serial number, return address + short description of the problem (it is needed to prepare warranty repair form, which I would prepare for your case).
 
The package with meter should be sent to address below:
Biall Sp. z o.o.
ul. Barniewicka 54c
80-299 Gda?sk
Poland
Attn: XXXXXXX
+48 XXXXXX
 
+ remark on package : "SERVICE"
 
Waiting for reply.

Pozdrawiam serdecznie / Best Regards,
--- End quote ---


--- Quote ---Hello again,
I have just discuss the issue of BM257s with our service manager and found third solution.
As you wrote - your Brymen seems to work properly, the only problem is "C_Er" information.
Due to our service manager experience, all BM257s, which was sent back with same problem, were checked for the specification and everything was withing the specified range.
In that case, to "turn off' calibration error message, you can start calibration procedure and leave it at once. After that the error message is cleared and the meter still holds it's specification.
Of course to check 100% of measured parameters, the checking should be performed using special calibration tool, but - as I wrote before - from our service manager experience, none of returned BM257s was out of it's specification by now (if only it was not damaged somehow).
 
So beside the two options I wrote you about before, you can choose this third one and "cancel error message" on your own.
 
If you would like to choose this option, please perform below steps one by one.

Start calibration mode

1-1)         Turn Rotary Knob to "OFF" position.

1-2)         Press and hold "SELECT" and "HOLD" buttons, and then turn "Rotary Switch" from "OFF" to "W" function position within one second.

1-3)         If "000.0W" is displayed, then the meter enters calibration successfully. Now depress "SELECT" and "HOLD" buttons.

After all please turn off the meter (turn Rotary Knob to "OFF" position).

 

Error information should be cleared.

 

Please let me know what you decide to do.

Pozdrawiam serdecznie / Best Regards,
--- End quote ---

Seems as this is not the first BM257s with the same problem as mine.
When he means 'W' function position he means ohm, perhaps a font/gmail problem.


--- Quote ---No, this does not work - meter does not enter calibration mode, I must have tried 'select' + 'hold' button + turn knob to ohm setting 50 times by now.
Display never shows '000.0?'
I uploaded video for you - https://www.dropbox.com/sh/lav3ojfcivxs4q7/AAAWT3Pi07DhRyXHtvkmuSN8a?dl=0

But even if the meter never enters calibration mode the display now does not show “C_Er" error anymore, even if this is a good thing it makes me worry about the quality and life expectancy of this meter as it can fail at any time.
I will use it for some time and if it fails/calibration error comes back I will return it to you.

The meter is also out of specification - you can see my measuremens in link below
https://www.eevblog.com/forum/testgear/brymen-257s-lost-calibration-data/msg804869/#msg804869

Thanks
--- End quote ---

One positive outcome, 'C_Er' is not shown again even if the meter never enters calibration mode, display never show '000.0?' - see my dropbox videolink down below.


--- Quote ---I have not seen, that meter is out of specification before - I assumed, that it measures everything correct, just error message is shown.
In this situation it should be sent back for calibration to perform correct readings.

Pozdrawiam serdecznie / Best Regards,
--- End quote ---

And I was right about the life expectancy,  tonight I got another fault-autorange and continuity failes - see dropbox video link.

https://www.dropbox.com/sh/lav3ojfcivxs4q7/AAAWT3Pi07DhRyXHtvkmuSN8a?dl=0


I'm sending the meter back even if postage is costly but I'm happy Biall Sp. z o.o. pays return postage to me, sofar these guys seems serious and comparing them to Tme would not be fair.

I can't understand why Tme is allowed to sell Brymen when there is no support whatsoever, I feel it brings the Brymen name unnecessary shame.

I 'X' out names and phone numbers in the mails above.



retiredcaps:

--- Quote from: Sjokolade on December 30, 2015, 09:19:06 pm ---I can't understand why Tme is allowed to sell Brymen when there is no support whatsoever, I feel it brings the Brymen name unnecessary shame.

--- End quote ---
Hmm, I must count to 100 before replying about how useless "middle man" supposedly value added resellers are.  Otherwise, this will completely derail your thread with the number of stories I have.  Even now, I can feel the rant building up inside.

Hopefully, TME get less business in the future for their inactions and lack of after sales support.
tooki:

--- Quote from: Sjokolade on December 30, 2015, 09:19:06 pm ---
--- Quote ---Start calibration mode

1-1)         Turn Rotary Knob to "OFF" position.

1-2)         Press and hold "SELECT" and "HOLD" buttons, and then turn "Rotary Switch" from "OFF" to "W" function position within one second.

1-3)         If "000.0W" is displayed, then the meter enters calibration successfully. Now depress "SELECT" and "HOLD" buttons.

After all please turn off the meter (turn Rotary Knob to "OFF" position).

--- End quote ---

--- Quote ---No, this does not work - meter does not enter calibration mode, I must have tried 'select' + 'hold' button + turn knob to ohm setting 50 times by now.
Display never shows '000.0?'
I uploaded video for you - https://www.dropbox.com/sh/lav3ojfcivxs4q7/AAAWT3Pi07DhRyXHtvkmuSN8a?dl=0

--- End quote ---

--- End quote ---
Before you send it back, try entering calibration mode again. I noticed in your video that you keep holding the two buttons long after turning the knob to resistance, only releasing the buttons after the display has completed the all-segments test and has switched to zero. Look at how mjlorton does it, he releases the buttons immediately after turning the knob, releasing them while the display is still doing the all-segments test:



It may be that you need to press the buttons, turn the knob, and release the buttons all within one second. (In fact, I doubt it matters how long you hold the buttons before you turn the knob, since it's likely not powered at all.)
Lightages:
Now that the information has been made public, I can confirm that this is the correct procedure for entering calibration mode. You need only press the "Select" and "Hold" buttons long enough for the display to initiate. You must turn the selector to OHMS while holding these keys. Holding them longer is not a problem and the meter should enter calibration mode even if you hold them till all zeros show. Turn the meter back off once you have started calibration mode. Do not try to calibrate it without proper references and knowledge.
Sjokolade:
Your both right and I realize now that the meter does enter calibration mode - I guess thats the why the calibration error now is gone but as the autorange and continuity failed I will send it back and also get it calibrated.

Thanks guys.
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