HT Series Compact Scale Operating Instructions

Cautions

Avoid installing the scale in direct sunlight.
Avoid over / shock load that could cause damage to the scale.
Use the scale under conditions of -10°C ~ 40°C, less than 85% R.H.
Do not mix the type of batteries. Replace the batteries all together.
If the scale is not to be used for a long period of time, remove all batteries.
Use only the specified AC adapter for the scale (AC adapter is optional).

Specifications

Model	Capacity/Readability
HT-300	310 x 0.1 g / 10.9 x 0.01 oz
HT-3000	3100 x 1 g / 109 x 0.1 oz / 6.8 lb x 0.1 oz
HT-500	510 x 0.1 g / 17.9 x 0.01 oz / 1.1 lb x 0.01 oz
HT-5000	5100 x 1 g / 179 x 0.1 oz / 11 lb x 0.1 oz

Power: 4 x "AA" size batteries or AC adapter (option)
Battery life: Approximately 450 hours with alkaline cells at 20°C / 68°F
Pan size: 132 (W) x 130 (D) mm / 5.2 (W) x 5.1 (D) in.
Dimensions: 195 (W) x 136 (D) x 44 (H) mm / 7.7 (W) x 5.3 (D) x 1.7 (H) in.

Keys and Symbols

ON/OFF key: Turns the scale power on/off.
RE-ZERO key: Sets the display to zero.
UNITS key: Changes weighing units, g, lb, oz or lb-oz.
Symbol O (Stable indicator): Indicates when the reading is stable.
Symbol ZERO (Zero indicator): Indicates when the scale zero is correct.
Symbol NET (Net weight indicator): Indicates when the net weight is displayed.
Symbol (Battery level indicator): Battery remaining level, shown after power-on only.

Installing the Batteries / Connecting the AC Adapter

Before use, remove the insulation tape from the battery compartment.

Installing / Replacing the batteries

Remove the battery cover.
Insert 4 new batteries (AA size) into the battery compartment, taking extreme care of the polarities.
Replace the battery cover.

The batteries provided with the scale are for testing the performance of the scale and may have a limited life.

AC adapter (optional)

Verify that the AC adapter is correct. Open the rubber cap covering the AC adapter jack and plug the AC adapter into the jack.

Weighing Procedures

1. Turning the scale on / off

Press the ON/OFF key to turn the scale on. The scale displays all segments for a few seconds and then displays zero. Press the ON/OFF key again to turn the scale off.

2. Selecting the weighing unit

Press the UNITS key to select the weighing unit. The scale will power up with the weighing unit that was in use when turned off last time.

3. Weighing

Verify that the reading is zero. If not, press the RE-ZERO key to zero the display.
If you use a container for weighing, place an empty container on the weighing pan and press the RE-ZERO key to zero the display.
Place the objects to be weighed on the pan or in the container. When the reading becomes stable, the STABLE indicator O is displayed.

Note

Automatic power-off function

If the scale is left ON and the STABLE indicator O is displayed, the automatic power-off function turns power off after approximately 5 minutes. To disable or enable this function, press the ON/OFF key while pressing the RE-ZERO key. Then PoFFU (disabled) or PoFF (enabled) will be displayed. Select the setting by pressing the RE-ZERO key and press the UNITS key. The scale displays End and returns to the weighing mode.

Error message

E: Overload. Remove the objects from the pan.
----: The scale is out of zero range or unstable when powered on.
Lb: Low battery. Replace the batteries or use the AC adapter.

Calibration and other functions

Please visit the A&D website (http://www.aandd.co.jp/).

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