ONBALANCE CTP-250 Pro Carat Milligram Scale User Guide
- June 5, 2024
- ONBALANCE
Table of Contents
ONBALANCE CTP-250 Pro Carat Milligram Scale User Guide
Thanks for purchasing the CTP SERIES Digital Mini Scale! This User Guide is
designed to get you up and running quickly with your scale. Scales are
precision instruments and require proper care and skill to get the best
results.
If you have questions or need support, visit us at
http://www.obscales.com/support or scan the QR Code on the back of this
manual using your smartphone.
What’s In The Box
Key Descriptions
ON/OFF – Turns the scale ON or OFF.
MODE – Changes the weighing unit.
TARE – Zeroes the scale. Also subtracts the weight of an empty container
(see Tare Function).
PCS – Enters counting mode. Hold to set sample quantity for average piece
weight calculation.
Weighing Your First Item
- Press the ON/OFF key to turn the scale on.
- Place the item on the centre of the weighing platform.
- Take your reading from the display You can press the MODE key to convert between weighing units.
- The scale’s auto-off function will turn the scale off after 3 minutes of inactivity or you can press the ON/OFF key to turn the scale off.
Counting Function
- Place a sample quantity of 25, 50, 75 or 100 pcs of the item you want to count on the platform.
- Press and hold the PCS key to enter counting setup.
- Tap the MODE key to select your sample quantity.
- Press the PCS key to confirm the sample qty and set the average piece weight (APW) in memory.
- You may now place any quantity on the scale and view the piece count (‘pcs’ will show on the display). Things To Avoid
Things To Avoid
Tare Function
The Tare function allows you to subtract the weight of a container so that the
display only shows the weight of the contents.
Place an empty tray or container on the platform.
Press the TARE key to subtract the container’s weight.
Add items to the container to see their weight on the display.
NOTE: The weight of the container will subtract from the available capacity and will leave a negative value on the display once the weight is removed. Press TARE again to return the display to zero.
Accuracy
You should check your scale’s accuracy periodically using calibration weights and perform calibration if necessary.
NOTE: Only use trusted calibration weights. Household items such as bottles and cans with weights printed on the side are not suitable for checking accuracy as these values are approximate and don’t include the container weight (Net Weight).
Calibration
Calibration adjustment is permanent and should only be performed using
accurate calibration weights that match the requirements for your scale (see
the chart on back). Do not use coins or other household items to calibrate.
- Prepare the included calibration weights -1 x 20g, 1 x 50g.
- Find a flat and level surface to perform calibration and let the scale adjust to room temperature.
- Press ON/OFF to turn the scale on and wait for the scale to stabilise.
- Press and hold the MODE key until the display shows ‘CAL’.
- Make sure nothing is on the platform then press MODE to confirm the zero point.
- The display will then flash 20g.
- Place the 20g calibration weight on the centre of the platform.
- The display will then flash 50g.
- Remove the 20g weight then place the 50g calibration weight on the centre of the platform.
- The display will show ‘PASS’ then return to . normal weighing mode. You may now turn the scale off or continue weighing.
Specifications
CTP-250
Max Capacity| 50.000 g / 1.7637 oz / 1.6075 ort / 32.151 dwt / 250.000 a
/ 771.62 gn
Readability| 0.001 g / 0.0001 oz / 0.0001 ort / 0.001 dwt / 0.005 ct /
0.02 gn
Weighing Units| g, oz, ort, dwt, ct, gn
Dimensions| Overall: 141 mm x 75 mm x 36 mm
Platform: 0 65 mm Diameter
Display: 44 mm x 15 mm
Calibration Weight| 20g & 50g (Both Included)
Power| 4 x MA Batteries or USB Cable (Both Included)
Warranty| 10 Year Limited Warranty
For more information, including weighing tips and support, scan this code with your smartphone
Or visit us online at vvww.obscales.com/support/
