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4

4.0

Scale Operation

Turning on the scale:

Be sure the battery is charged or that the AC adapter is plugged in.

Press the 

On/Off/Zero

 key on the front panel to turn the scale on. See 

illustration above.

When the startup routine is finished, the scale is ready.

Simple weighing:

Empty the scale and press the 

On/Off/Zero

 key if the display is not at 

0

.

Place item(s) to be weighed on the scale. Weight is displayed.

Remove item and repeat process.

Tare/Net weighing:

Empty the scale and press the 

On/Off/Zero

 key if the display is not at 

0

.

Place container to be tared on the scale and press the 

Tare/Units

 key for 

less than five seconds. 

Net

 annunciator lights when a tare is active.

Place item(s) to be weighed in the container. Net weight is displayed.

Remove and repeat process.

Removing a tare:

To remove an active tare weight, empty the scale, wait for the scale to 
stabilize. The unit of measure annunciator will glow steady when the scale 
is stable or blink while motion occurs. Press the 

Tare/Units

 or 

On/Off/Zero

 

key to remove the active tare.

Changing unit of measure:

Press and hold the 

Tare/Units

 key for five seconds to change the unit of 

measure. Repeat to change to the next unit of measure.

Turning the scale off:

Press and hold the 

On/Off/Zero

 key for five seconds.

Summary of Contents for 405

Page 1: ...d accuracy of your scale Only use on a stable vibration free surface Handle with care Gently apply all items to be weighed onto the weighing platform Although this scale is designed to be quite durabl...

Page 2: ...ff Zero key See illustration below On Off Zero key The On Off Zero key is used to turn the scale on or off and to zero the scale ON OFF Function When scale is off press the On Off Zero key to turn on...

Page 3: ...ator on the left of the display will be lit and the NET annunciator will be off The scale will not zero if the display is beyond 5 of full capacity The display will show 0 or 0_____ then return to the...

Page 4: ...Place container to be tared on the scale and press the Tare Units key for less than five seconds Net annunciator lights when a tare is active Place item s to be weighed in the container Net weight is...

Page 5: ...ess the On Off Zero key until CAL 0 appears 4 Release the two buttons 5 Press the On Off Zero key 0 in CAL 0 will flash briefly then CAL F is displayed 6 Press the Tare Units key to choose the unit of...

Page 6: ...ation mode for the scale you must access the PC board and move a jumper Follow these steps 1 Remove the scale platform 2 Use a 5mm hex wrench to remove the two screws holding the platform support to t...

Page 7: ...Figure 1 2 shows the older version of the main board and the calibration jumper JP1 The jumper is shown inside the red oval The oldest version of the main board is shown in Figure 1 3 Figure 1 1 Curre...

Page 8: ...igure 1 2 is in the calibration unlocked position The scale can be calibrated with the jumper on the two pins on the right side Pull the jumper up and move it to the left two pins to lock calibration...

Page 9: ...ide the small red rectangle It is shown in the calibration locked position The scale cannot be calibrated with the jumper on the two bottom pins Pull the jumper up and move it to the top two pins to u...

Page 10: ...capacity above the calibration zero point when scale is turned on OR The weight reading is more than 5 of full capacity above the power on zero point when you press the On Off Zero key 0______ Power o...

Page 11: ...30 000lb x 0 005lb 2 Display seven red 0 56 seven segment LED digits display with eight LED diodes ZERO NET AC CHG LB KG G OZ Below are examples of the display showing 5 340kg in all the possible unit...

Page 12: ...ower supply is lower than 5 7V 0 1V but over 5 4V 0 1V the scale will display Lo bAT and the other current display alternatively If AC adapter is used to charge battery or to power scale the rocker sw...

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