When i turn my scale on it reads, "24C02" for

Special Calibration- If the display shows [OUE2] after turning on: 1. Turn OFF the scale. 2. Press ON/OFF key briefly then immediatley press and hold the MODE and TARE buttons simultaneously until [CAL] is displayed. Release the MODE and TARE buttons and a random internal statement number will be displayed. 3. Press the MODE key once and the display will show [2Ero]. 4. Place a 200g weight on the center of the platform. Wait 2 seconds then press MODE key again. The LCD will display [PASS] then [200.0]. 5. Remove the weight and turn off the scale. Special Calibration is complete.

When a scale is a precision device, it requires technical servicing to get it back in order. Get a professional to repair the unit....my suggestion.

it means that it can't get a 0 point because it is unstable put it on a flat table or something and push re-zero (softly)

"unk"

its the postal scale code

please preform the following procedure
Calibration
1. Place the scale on a leveled surface & turn off the scale.
2. Press and hold the "MODE" key and ON/OFF key until the LCD
displays a random number.
3. Now release both keys and press the ON/OFF key once. The
display will read "CAL" and then "1000.0".
4. Place a 1,000g weight on the center of the platform and wait 3 to 4
seconds. The LCD display reads "PASS", then "1,000.0g". Remove
the weight and turn off the scale.
5. Calibration is complete and the scale is ready for use.
check this link for manual:
Untitled Page

I have a Health-o-meter but not the same model. Mine still has the instructions pasted (loosely) to the bottom.
The secret is that you must initially press the lower (left or right side) corer for just a second or two. That causes a few dashes and then the scale reads 00.0. Then get on the scale and get your reading.
Alternative behavior:
If you initially press the corner for more than a few seconds it will cycle through User Numbers one through four. If you use that feature it remembers your weight from the last time so you can see the difference.

Hello, you can download this tool here:

http://www.cgsecurity.org/wiki/CmosPwd

Dell

The official method is to contact Dell Technical Support. Dell Technical Support will request the Service Tag and Express Service Code from the bottom of the Latitude. If the current user is not the original Latitude owner, Dell will transfer the used Latitude's registration from the original owner with only the Service Tag and Express Service Code from the tag on the laptop.

• Dell Inspiron 5100: eeprom 93lc46, password in scan code at 0x310
• Dell Inspiron 7500: eeprom 24c164
• Dell Inspiron 8100: eeprom 24c02
• Dell Latitude C600: eeprom 24c02, password in scan code at 0x00, 0x10 and 0x90
• Dell Latitude C610: eeprom 24c02, password in scan code at 0x00, 0x10, 0x80 and 0x90
• Dell Latitude C640: eeprom 24c04, password in scan code at 0x100 and 0x180
• Dell Latitude CPI: eeprom 24c02, password in scan code at 0x00, 0x10, 0x80
• Dell D600: eeprom 24c04, password in scan code at 0x110
• Dell Optiplex: Remove the PSWD jumper
• For most Dell Dimension desktops, the steps to reset a BIOS password and clear all CMOS settings are:
  • Locate the 3-pin CMOS password reset jumper on the system board.
  • Remove the jumper plug from pins 1 and 2.
  • Place the jumper plug on pins 2 and 3 and wait approximately 5 seconds.
  • Replace the jumper plug on pins 1 and 2.

Try the backdoor password: Dell

The another method is: by Using the Motherboard Jumper: In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method.
Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc.
When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin.
Make sure to turn the PC off, and remove the battery and power cord
( if it is a laptop ) before you continue.

Here is a picture how it looks like:



The default setting is:pin 1 to 2, to clear cmos: 2 to 3.

Best of luck :-)

the 24c02 is a memory chip inside. Unless your a tech - you can't repair.

magnum 1000xr pocket scales turns on calibrates goes to different modes but wont show the weight when object placed on the scale,a lock appears in top left of window, is scales broke or do i have to make lock symble dissappear?