Why will my bathroom scales, Model TH 321 not show weight, but only zeros?-

SOURCE: owners manual for WW 47 bathroom scale

This link allows you to request user manuals...
I hope this helps.

http://www.conair-store.com/cc_contactus.asp

SOURCE: Scales show weight in kg. How to get them to show lbs.

Body Fat Monitor/Scales: TBF-611, TBF-612, TBF-621, TBF-622, BF-541, TBF-560, TBF-572. UltimateScales: 2000, 2001, 2001T. BF-662, BF-555, BF-556, BF-558, BF-559, BF-625, BF-626.
Press the Set and Up Arrow buttons at the same time. Release the buttons, the display will flash. Press the Arrow button to cycle through each weight mode until just the mode that you require is displayed. Then press Set. The display screen will flash to confirm your selection and store in memory.
Note: If weight mode is set to pounds or stone-pounds, the height programming mode will be automatically set to feet and inches. Similarly, if kilograms is selected, height will be automatically set to centimeters.

SOURCE: resetting the scale

You do not reset the scale. It only saves the last recorded weight of the user. So, if you weighed yesterday, it will put your recorded weight in memory. The next time you select your user number and step on the scale, it will compute the difference from your previous record and save your current weight.

Hasan Khan Amran

• 184 Answers
• Posted on Aug 18, 2009

SOURCE: PROBLEM WITH WEIGHT CALIBRATION

Calibration procedure for Robinair AC machine.
NOTE:FOR SCAL CALIBRATION YOU SHOULD HAVE 9KG/20LB OF WEIGHT.From main menu go to change default (press 8787 for old type machine or 5454 new type machine)
then press enter/start key.after enter to default nenu you have to select calibrate scal option.press again enter/start key then follow the on scree message.once you done so,press stop/exit key to complete the prcess.

SOURCE: Weight Watchers bathroom scale, Model WW60X

I got it! Press "set". You should see "start goal" in the bottom right. Press the user # you want to save as and press "set" again. The display will blink then display "0.0". Step on the scale to get your current weight. Once it's read you current weight, press "set". A goal weight will display. Press "User 1" to make your goal weight go up and "User 2" to make it go down. Press "set" when the display shows your goal weight. That's it. Now all you have to do is press your user # and wait for "0.0" to display before stepping on the scale.