AND EK-i Compact Balance User Guide

AND EK-i Compact Balance

Introduction

This quick start guide describes the basic functions and operations of the balance.
The functions and operating procedures of the balance (EK-i / EW-i series) are explained in detail in the following instruction manual.
[EK-i / EW-i Series Instruction Manual] This is an instruction manual for understanding and fully utilizing the precision electronic balance EK-i / EW-i series. This manual can be downloaded from our website https://www.aandd.jp.

Unpacking

When unpacking, check whether all of the following items are included:

Part names and functions

Turns the power ON or OFF.| Outputs the weight data to a printer or computer, or enters a unit weight, 100% weight or other setting values to the balance.
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Hold down to enter the function setting mode.

Weighing mode (EW- i only): Changes the weighing range (when is selected). pcs mode:

Enters the sample unit weight storing mode.

% mode:

Enters the 100% weight storing mode.

| Switches the weighing unit (the weighing mode).
Clears the display to zero.

Setting up

Setting up your balance

1.  Place the weighing pan on the main unit as shown on the previous page.

2.  Adjust the level of the balance using the leveling feet.
   Use the spirit level to confirm. The bubble should be in the center of the circle.

3.  Calibrate your balance before use. (See “6. Calibration”)

Balance installation
To measure correctly, to keep the balance in good condition, and to prevent hazards, observe the following:

•  Do not install the balance in locations that are subject to excessive dust, breezes, vibration, large temperature fluctuations, condensation, or that may have magnetic fields.
• Do not install the balance on a surface that is soft or that may cause the balance level to shift.
• Do not install the balance in direct sunshine.
•  Do not install the balance near heaters or air conditioners.
•  Do not use an unstable AC power source.
•  Do not install the balance in a place where combustible or corrosive gases may exist.
•  Allow the balance to reach equilibrium with the ambient temperature before use.
•  Switch the power ON at least half an hour before use so that the balance can warm up.
•  When the balance is installed for the first time, or the balance has been moved, carry out calibration as described in “6. Calibration”.

Power source

For the power source, the AC adapter or the rechargeable battery pack (EKW- 09i: Optional item) is available.

When using the AC adapter
Use a stable power source. To use the AC adapter, insert the AC adapter plug into the AC adapter jack on the EK-i / EW-i. When using the rechargeable battery pack (EKW-09i)
Refer to the [EK-i / EW-i Series Instruction Manual] for more information.

Operation

Turning the power ON and OFF

• All of the indicators are displayed as shown above. (About units: Only the units available will be displayed.)
• The display turns off except for a weighing unit and the decimal point.
• The balance waits for the weight data to become stable, and zero will be displayed with the ZERO mark (power-on zero).
• The range for power-on zero is within ±10% of the weighing capacity around the calibrated zero point.
• If the power is switched ON while there is a load beyond this range, the balance will be tared to zero and the NET mark and the ZERO mark turn on.

Press the key again, and the power will be switched OFF.

 Calibration

This function adjusts the balance for accurate weighing. Perform calibration in the following cases.

•  When the balance is first used.
•  When the balance has been moved.
•  When the ambient environment has changed.
•  For regular calibration.

Calibration using a weight

Prepare a calibration weight (optional) before starting.

1.  Warm up the balance for at least half an hour with nothing on the pan.
2.  Press and hold the calibration (CAL) switch until
3. appears, and release the switch.
4. The balance displays.
5. To change the calibration weight value, proceed to step 4. To use the calibration weight value in the balanced memory, proceed to step 5.
6. Press the key. The display shows the calibration weight value in “gram” that is stored in the balance. Use the following keys to change the value.
7. key To select the digit blinking to change.
8. key To set the value of the digit selected.
9. key To store the value and return to
10. step 3.
11. key To cancel the value and return to
12. step 3.
13.  Use a calibration weight of more than 2/3 of the
14. capacity (of the highest range for EW- i series).

At step 3, pressing the key weighs the zero-point value. Do not touch the pan during weighing. When the zero calibration is completed, the display shows the calibration weight value.
To perform the zero calibration only and finish the procedure, press the key.

Place the calibration weight with the same value as displayed on the pan. Press the key to weigh it. Do not touch the pan during weighing.

Maintenance

7-1 Notes on maintenance

□ Do not disassemble the balance. Contact your local A&D dealer if your balance needs service or repair.
□ Use the original package for transportation.
□ Do not use organic solvents to clean the balance. Use a lint free cloth dampened with a mild detergent.

7-2 Error codes

Warning to indicate that an object beyond the balance capacity has been placed on the pan. Remove the object from the pan.

 | Overload error

Warning to indicate that the balance detects an unexpected load. Remove all objects from the pan or check that the weighing pan is correctly installed.

 | Range over notice

This will be shown if the weight sensor receives strong force upward. Check if there is anything sandwiched around the weighing pan. There is a possibility that the weight sensor itself may have a failure.

 | Unit / 100% weight error

The unit / 100% weight is too light in the counting / % mode.

__

| Sample quantity notice

When sample weight is light and the counting error could become large, the balance will prompt you to use a larger number of samples. Place the displayed number of samples on the pan and press the                 key to store the unit weight.

Note:

Pressing the                 key without adding samples may reduce counting accuracy. Starting  from  the 100 samples,                      may be displayed when the sample weight is light. This is for your notice and press the                 key without adding any samples.

This notice is not shown when “                 ” (ACAI disabled) or “ ” is set.

 | CAL errors

Warning to indicate that calibration has been canceled because the calibration weight is too light.

Check the weighing pan and the calibration weight.

To return to the weighing mode, press the                key.

 | Low battery

Warning to indicate that the battery pack (OP-09) is discharged. Immediately stop using it, and recharge or use the AC adapter.

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 | AC adapter error

Warning to indicate that the output voltage of the AC adapter is too high. Check if the AC adapter is correct.

 | AC adapter error

Warning to indicate that the output voltage of the AC adapter is too low. Check if the AC adapter is correct.

 | Stability error

Warning to indicate that the weight value is not stable and the balance cannot display it. Prevent vibration and drafts. Press the                key to return to the weighing

mode.

 | Internal errors (# =  ,  ,     or    )

The balance detects the error state in the internal processing. With nothing on the weighing pan, turn the power OFF and ON again. If the error persists, request service.

If you cannot cancel an error or other errors have occurred, request service from the store where you purchased the balance or from your local A &D dealer. 

 Specifications

EK-i series

Repeatability

(Standard deviation)

|

0.01g

|

0.01g

|

0.01g

|

0.1g

Linearity| ±0.01g| ±0.01g| ±0.02g| ±0.1g
Model| EK-1200 i| EK-2000 i| EK-3000 i| EK-6000 i| EK-12K i
---|---|---|---|---|---
Weight capacity| 1200g| 2000g| 3000g| 6000g| 12kg
Readability| 0.1g| 0.1g| 0.1g| 1g| 1g
Repeatability

(Standard deviation)

|

0.1g

|

0.1g

|

0.1g

|

1g

|

1g

Linearity| ±0.1g| ±0.1g| ±0.2g| ±1g| ±1g
Model| EK-410 i| EK-610 i| EK-4100 i| EK-6100 i
---|---|---|---|---
Weight capacity| 400g| 600g| 4000g| 6000g
Readability| 0.01g| 0.01g| 0.1g| 0.1g
Repeatability

(Standard deviation)

|

0.01g

|

0.01g

|

0.1g

|

0.1g

Linearity| ±0.02g| ±0.02g| ±0.2g| ±0.2g

EW-i series

Repeatability

(Standard deviation)

|

0.01g

|

0.02g

|

0.05g

|

0.1g

|

0.2g

|

0.5g

|

1g

|

2g

|

5g

Linearity| ±0.01g| ±0.02g| ±0.05g| ±0.1g| ±0.2g| ±0.5g| ±1g| ±2g| ±5g

References

• A&D Company, Limited

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