Proscale manual - My Weigh scales

1) If the Display ever becomes locked on errl or err, this is a fatal error code and indicates that the scale was shocked, dropped or otherwise damaged and the delicate weighing sensors have been damaged. You can try recalibrating the scale (If the sensor has not been hurt too badly it may work again after recalibration). Otherwise you will have to follow the warranty instructions that came with your scale. Usually this happens when a scale has been shipped and improperly packed or mishandled by a shipping company.

2) If during calibration the scale shows "Cal" but will not go to "Load 100" (or Load 200 for the Pro500) this indicates a zero mark error. Please try repeating calibration a few times, if the scale will not calibrate then the zero error is fatal. This means the scale will have to come back to us for service or replacement. Zero mark errors happen due to shock or overload, the load cell becomes slightly bent and the processor of the scale cannot determine a stable "zero" to use for calibration.

3) If the display becomes locked on 8888, this often indicates low batteries. However sometimes it also may indicate a serious zero mark error. This means when you turn the scale on, it can't determine what zero is (a slight zero mark error will cause situation #2 above, but a serous zero mark error will cause the scale to not even be able to show 0.0 when you turn it on. Thus, if new batteries do not fix this error the scale will have to be sent to us for replacement under our Lifetime/30 year warranty program.

Proscale Manual

Thank you for purchasing the Pointscale. With normal care and proper treatment it will provide years of reliable service. Please read all operating instructions carefully before use.

PROPER OPERATION AND ENVIRONMENT

Avoid lengthy exposure to extreme heat or cold, your scale works best when operated at normal room temperature. Always allow the unit to acclimate to a normal room temperature for at least one hour before use.
Allow sufficient warm up time. Turn the scale On and wait a few seconds to give the internal components a chance to stabilize before weighing.
The cleaner the environment the better. Dust, dirt, moisture, vibration, air currents and proximity to other electronic equipment can all cause an adverse effect on the reliability and accuracy of your scale.
Handle with care. Gently apply all items to be weighed onto tray top. Although this scale is designed to be quite durable, try to avoid rough treatment as this may permanently damage the internal sensor.
Avoid shaking, dropping or otherwise shocking the scale. This is a precision instrument and must be handled with extreme care.
Only operate the scale on a stable, vibration free surface.
Important: Do not operate near cell phones, radios, computers, or any other electronic device.
DELAY - scale has a built in delay after pressing buttons for accuracy.
Remove the batteries if you plan to store the scale for longer then 10 days

KEYPAD FUNCTIONS
CAL/MODE
Mode selection: Press and release the key once to change weight unit. Calibration: Depress this key for four seconds to begin calibration as outlined under the Calibration Procedure on the next page.

ON/OFF
Press this key to turn unit on. Once the unit is on, press and hold the same key to turn the scale off.

COUNT
The following steps outline the procedure for cumulative weighing of samples: Switch the scale on Press the COUNT key once. The display will show "S=10". Put 10 pcs of samples on the platform. The display will show "10 pcs" and the scale is ready for counting. NOTE: You can choose the quantity of samples as 20pcs by pressing the COUNT key twice instead of once. The display will show "S=20". Put 20pcs samples on the platform. The display will show Ò20 pcsÓ and the scale is ready for counting.

TARE
Press tare to reset the scale to zero. Tare can be used for eliminating from a sample (or a procedure) the weight value of a container weight is permanently removed for the remainder of the procedure.

Note: When all weight are removed from the weighing tray, the tared value of a container will be displayed as a negative number. Cycle the power on the scale to reset the scale to zero.

PROTECTIVE COVER
The scale has a unique built in protective cover. The cover is designed to allow the weighing of small precious stones with the cover closed. For larger items, please open the cover. For accuracy, When weighing with the cover closed, be sure the items you are weighing are not touching the cover.

BATTERY OPERATION

Two "AAA" size ALKALINE batteries are required.
Release the battery cover by sliding out-wards.
Place batteries into battery compartment aligned correctly.
Replace battery cover. Do not use excessive force!
The scale is now ready for battery operation.

CALIBRATION
Always perform calibration procedure after first turning the unit on and allowing time for it to warm up and stabilize. 60 seconds should be sufficient. For best results repeat this process at regular intervals if the scale is subject to weather or altitude changes. Incorrect calibration can occur if you do not follow the steps exactly. If your scale does not perform accurately, please try replacing your batteries before you calibrate. Brand new scales may require multiple calibrations during the load cell break-in time. The scale must be on a stable, vibration free surface.

Turn scale on and allow unit to stabilize for 60 seconds. Press and hold the "CAL/MODE" key for 6 seconds then release. The display will show CAL then CAL 0, then LoAd 100g (or LoAd 200g for the Proscale 500) will appear. It's telling you to calibrate with 100g/200g.
Gently place the 100 gram (200 gram for the Proscale 500) weight on the scale and wait.
The scale will flash 100g or 200g, then DONE, then 100g or 200g. Gently remove the weight. Calibration is complete. Note: If after calibration your scale does not read accurately, this indicates calibration error and the calibration process should be repeated.

POWER UP SEGMENT TEST
When first turning the unit on, all segments of the display will appear as shown below. This display will remain for approximately 3 seconds and then reset to zero. The display may also change brightness before 0.0 or 0 appears.88888

STABLE READING INDICATION
This is a very precise scale - the display may seem to wander or jump when weighing. This is due to air currents or vibrations. Stable weighing is achieved when the small o appears in the top left corner of the display.

OVERLOAD
When an applied load exceeds the capacity. "Err" will appear on the display. Remove excessive load immediately. The unit should return to normal operation. Remember: You can permanently damage the scale by overloading it!

NEGATIVE VALUE
Any tarred value or a value left in memory will be displayed as a negative number once all weight is removed from the unit. Press tare to return the unit to zero.

TARE
The tare feature is designed to allow the user to reset the scale to zero for certain circumstances. Tare can be used to eliminate the value of a pan liner, scoop, beaker etc. Place the container on the weighing tray, wait for a stable reading and then press "TARE". The unit returns to zero and the weight value of the container is permanently removed for the remainder of the procedure.

Note: When all weight is removed from the weighing tray, the tared value of the container will be displayed as a negative number. Press the "TARE" again to return to zero or cycle the power on the scale.

AUTO SHUT OFF
An auto shut off feature is provided to conserve battery power. The unit will automatically turn off after approximately 2 minutes of inactivity.

WARRANTY
This scale is warranted from all defect in materials or craftsmanship for Lifetime/30 years from the date of purchase to the original consumer purchaser. Any defect created by misuse, abuse, overload or physical damage is not covered. Returns must be Mailed to the return center. We do not accept returns of used scales from our resellers. You must return all scales directly to our repair center.

Please make sure you include a copy of your original receipt as proof of purchase. The scale must be completely clean and devoid of food or lab matter. Unsanitary or unclean scales or scales sent in without their ORIGINAL receipt will be destroyed without repair. Please include a note describing the problem with the scale.