A&D HT Series Compact Scale User Manual

Taw qhia

This user manual provides comprehensive instructions for the safe and efficient operation, maintenance, and troubleshooting of your A&D HT Series Compact Scale, model HT-300. Please read this manual thoroughly before using the scale to ensure proper functionality and to prevent damage.

Cov ntaub ntawv kev nyab xeeb

Always observe the following safety precautions to ensure safe operation and to prevent damage to the scale or injury to the user:

• Do not overload the scale beyond its maximum capacity (310 g for HT-300).
• Use the scale on a stable, level surface to ensure accurate readings.
• Tsis txhob muab qhov ntsuas qhov kub thiab txias, av noo, lossis tshav ntuj ncaj qha.
• Khaws qhov ntsuas kom deb ntawm qhov muaj zog electromagnetic teb.
• Do not disassemble or attempt to repair the scale yourself. Refer to qualified service personnel.
• Ntxuav lub nplai nrog mos, damp daim ntaub. Tsis txhob siv cov tshuaj abrasive los yog muab tso rau hauv dej.

Ntim Cov Ntsiab Lus

Xyuas kom tseeb tias txhua yam khoom muaj nyob hauv pob:

• A&D HT-300 Compact Scale Unit
• Instruction Manual (cov ntaub ntawv no)
• Clear Carry-Case
• AC Adaptor (optional, may be sold separately)

Khoom Tshajview

Figure 1: A&D HT-300 Compact Scale. This image shows the top view of the scale, highlighting the weighing pan, the LCD display, and the control buttons for power, hold, and re-zero/tare functions.

The A&D HT-300 Compact Scale is designed for precise weighing in various environments, including schools, laboratories, and for weighing small items like jewelry. It features a stainless steel pan, a backlit LCD display, and multiple units of measure.

Cov yam ntxwv tseem ceeb:

• Lub lauj kaub ntsuas qhov hnyav hlau tsis xeb
• Backlit LCD Display for clear readings
• Multiple Units of Measure (g, oz, lb-oz, ozt, N)
• Stable, Net, and Zero Indicators
• AC Adaptor Option for continuous power
• Clear Carry-Case for portability and protection

Teeb tsa

1. Unpacking: Ua tib zoo tshem cov nplai thiab txhua yam khoom siv ntawm lub ntim.
2. Qhov chaw: Place the scale on a firm, level, and vibration-free surface. Ensure it is away from direct sunlight, drafts, and heat sources.
3. Fais fab mov:
   • Roj teeb ua haujlwm: Open the battery compartment on the underside of the scale and insert the required batteries (check battery type and polarity).
   • AC Adaptor (Optional): If using the AC adaptor, plug it into the scale's power input jack and then into a suitable wall outlet.
4. Pib Pib Pib: Nias lub ON/OFF button to turn on the scale. The display will show "88888" then "0.0g" (or the last used unit) when ready.

Cov lus qhia ua haujlwm

1. Fais fab / Off

• Txhawm rau qhib: Nias lub ON/OFF khawm.
• Txhawm rau tua: Nias thiab tuav lub ON/OFF button until the display turns off. The scale also features an auto-off function to conserve power.

2. Basic Weighing

1. Ensure the scale is on a stable surface and displays "0.0g".
2. Gently place the item to be weighed on the center of the weighing pan.
3. Wait for the reading to stabilize. The "STABLE" indicator will appear on the display.
4. Nyeem qhov hnyav uas tso tawm rau ntawm LCD.

3. Tare Function (Zeroing a Container)

Lub luag haujlwm tare tso cai rau koj rho qhov hnyav ntawm lub thawv, yog li tsuas yog ntsuas qhov hnyav ntawm cov khoom hauv xwb.

1. Place the empty container on the weighing pan. The display will show its weight.
2. Nias lub →0/T← (RE-ZERO) button. The display will return to "0.0g" and the "NET" indicator will appear.
3. Muab cov khoom uas yuav tsum tau ntsuas rau hauv lub thawv. Lub vijtsam yuav qhia qhov hnyav tag nrho ntawm cov khoom.
4. To clear the tare, remove the container from the pan and press the →0/T← khawm dua.

4. Changing Units of Measure

The HT-300 supports multiple units of measure (g, oz, lb-oz, ozt, N).

• Nrog rau qhov ntsuas, nias lub THOV button repeatedly to cycle through the available units.
• Tsum nias thaum koj lub unit uas koj xav tau tshwm sim.

5. Tuav Haujlwm

The hold function allows you to temporarily freeze the displayed weight, even after the item is removed from the pan.

• While an item is on the pan and the weight is stable, press and hold the THOV button for a few seconds. The display will show "HOLD" or a similar indicator.
• The weight will remain displayed even if the item is removed.
• To release the hold, press the THOV khawm dua.

Kev tu

Ntxuav:

• Wipe the scale surface with a soft, slightly damp daim ntaub.
• For stubborn stains, use a mild detergent. Avoid harsh chemicals, abrasive cleaners, or solvents.
• Ensure no liquid enters the interior of the scale.
• The stainless steel pan can be removed for more thorough cleaning if necessary.

Cia:

• When not in use for extended periods, store the scale in its clear carry-case to protect it from dust and damage.
• Khaws rau hauv qhov chaw txias, qhuav, kom deb ntawm tshav ntuj ncaj qha thiab kub heev.
• If using batteries, remove them if the scale will not be used for a long time to prevent leakage.

Kev daws teeb meem

If the problem persists after attempting the solutions above, please contact A&D customer support for assistance.

Specifications

Warranty thiab Support

A&D Company, Ltd. provides a limited warranty for this product against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region and purchase date. Please retain your proof of purchase for warranty claims.

For technical support, service, or warranty inquiries, please contact A&D customer service through their official website or the contact information provided with your product packaging. When contacting support, please have your model number (HT-300) and purchase details ready.

For more information, visit the official A&D webqhov chaw: www.andweighing.com