W3100 Series Analytical Balance

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Product Information

Specifications

• Model: W3100 Series

• Capacity: 120g or 210g

• Calibration: External calibration models

• Readability: Depending on model

• Repeatability: Information not provided

• Linearity: Information not provided

• Operating temperature: Information not
  provided

• Pan size: Information not provided

• Dimensions (W x H x D): Information not
  provided

• Power: AC power adapter

Product Usage Instructions

Installation

Follow the steps below to properly install your Analytical
Balance:

1. Unpack the balance ensuring all components are present.

2. Refer to the specifications section in the manual for
   environmental requirements.

3. Set up the balance by assembling the parts according to the
   manual.

Operating Your Balance

To operate your balance, follow these steps:

• Perform basic weighing or count weighing as needed.

• Utilize the percent deviation feature for specific
  calculations.

• Familiarize yourself with the display and control panel for
  easy navigation.

Calibration

Calibrate your balance using one of the following methods:

1. Internal Quick-Calibration
2. Correcting Internal Weight Value
3. Manual Calibration
4. Linearity Calibration
5. 200g Calibration (if applicable)

Function Setting

You can customize function settings by following these
steps:

1. Access the function setting menu on the control panel.
2. Refer to the Function Setting Index in the manual for detailed
   instructions.

Care and Maintenance

Maintain your balance by following these care tips:

• Regularly clean the balance using recommended methods.

Frequently Asked Questions (FAQ)

Q: How do I troubleshoot issues with my Analytical

Balance?

A: Refer to the Troubleshooting section in the manual for
guidance on identifying and resolving common problems.

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Analytical Balance W3100 Series
Operating Manual
version: 2/2022 (remote connected control panel)
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CONTENTS

1. INTRODUCTION ……………………………………………

3

2. INSTALLATION ………………………………………………….. 3

2-1. Unpacking ……………………………………………

3

2-2. Specifications …………………………………..

4

2-3. Environmental Requirements ………………………….. 5

2-4. Setting up your balance …………………………………. 5

3. OPERATING YOUR BALANCE ……………………………. 6

3-1. Basic Weighing …………………………………………. 6 3-2. Count Weighing ………………………………………….. 6

3-3. Percent Deviation ………………………………………. 7

3-4. Display and Control Panel …………………………… 7

4. CALIBRATION ……………………………………………………… 8

4-1. Internal “Quick-Cal” …………………………………… 9 4-2. Correcting Internal Weight Value ………………………. 9 4-3. Manual Calibration ……………………………………. 10

4-4. Linearity Calibration …………………………………… 10

4-5. 200g Calibration …………………………………….. 11

5. FUNCTION SETTING ……………………………………. 12

5-1. Changing Function Settings ………………………………. 12 5-2. Function Setting Index …………………………………. 13

6. TROUBLE SHOOTING …………………………………………. 14

7. CARE AND MAINTENANCE……………………………………. 15

7-1. Cleaning …………………………………………………. 15

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1. INTRODUCTION
To ensure proper operation performance from of your Accuris Analytical balance, please read this manual in its entirety before use.
Accuris balances have been designed and developed with our scientific customers’ requirements in mind. The Analytical Balance range incorporates advanced electromagnetic sensing technology, combined with mechanical engineering and software technology to provide the following features:
· Easy Operation. · Easy to read, large LCD screen with a white backlight; · Remotely connected control/display panel; · Rapid weighing speed 10 times faster than mechanical balances; · Capability to tare up to the maximum capacity of the balance · Multiple weighing modes:

1. Standard weighing 2) Piece counting 3) Percentage weighing · Choice of weighing units: grams, carats, or ounces. · RS-232 interface for connecting peripheral device such as a computer or a
   printer; · Alarm to indicate malfunction · Easy, in-lab calibration options
   2. INSTALLATION
   2-1 UNPACKING CAUTION: Always handle your Accuris balance with care. The internal, electromechanical components have been assembled and adjusted at our factory to ensure accurate performance, but mishandling and physical shock can damage the internal mechanisms. Carefully remove the balance from the carton and foam protective pieces. Check the balance to make sure there has not been any damage during shipping. Check the contents of the package to make sure you have received all of the parts. Remove the brass shipping screw from the bottom of the balance. See separate instruction insert that has been provided inside the draft shield enclosure
   IMPORTANT: Retain the original packaging for safe, future transportation for service or relocation. Use of alternative packaging may invalidate the warranty. If you need additional information on shipping the instrument for service, contact Benchmark Scientific at 908-769-5555.
   3

Packing List

No.

Item

1

Analytical Balance Unit

2

Remote connectable control panel

3

Weigh Pan (top)

4

Pan Support (bottom)

5

AC power adapter

6

Operating Manual

6

Standard weight (F1 Class) included

with W3100-120 and W3100-210

external calibration models only

Quantity 1 1 1 1 1 1 1

IMPORTANT: It is recommended to save the cartons and packing materials for storing and transporting the balance or returning it for any required servicing.

2-2 SPECIFICATIONS

Model Capacity Calibration Readability Repeatability Linearity Four-corner Stabilization
Sensitivity Operating temperature Pan size Dimensions (W x H x D)
Power

W3100120

W3100210

W3100A120

W3100A210

120g

210g

120g

210g

External

Internal “Quick-Cal”

0.0001g

±0.0001g

±0.0002g

±0.0002g

Approx. 5 sec. 2ppm/ (10-30)

5–40 90mm Diameter
32x47x28 cm 12.5x11x18.5 inches AC 110 to 230V, 50/60 Hz

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2-3 ENVIRONMENTAL REQUIREMENTS Your Accuris balance is a precision instrument, and requires an environment
which is free from excessive air flow, dust, corrosive elements, vibration and temperature or humidity extremes. An unsuitable environment will adversely affect the performance of your balance.
· The area and environment where your balance is used should be kept clean and dry all time;
· The optimal operating temperature is 20 (68) and 50% relative humidity; · Always use a stable AC power source that meets the input specifications of
the AC/DC power adapter. · Do not situate the balance:
o In direct sunshine; o Next to windows or doors where there can be excessive air movement
or rapid temperature fluctuations; o Near a heater or air conditioner; o Near vibrating, rotating or reciprocating equipment; o Near a magnetic field or equipment that generates a magnetic field; o On an unstable surface; o In areas where there are corrosive vapors;
2-4 SETTING UP YOUR BALANCE CAUTION: Always allow the balance to warm up in its ambient environment for 2 hours prior to use. If the balance is moved from a cold environment to a warmer environment, keep the balance in a sealed bag during the warm up time. This will prevent condensation from forming on the internal components and external surfaces of the balance.
1. Place the balance unit on a stable and level surface; 2. Level the balance by turning the adjusting feet, checking the level
indicator on the balance, until the bubble appears in the center of the circle; 3. Carefully place the pan support and the pan into position on the weighing mechanism. These parts should be carefully put into place, no downward force is required; 4. Connect the remote control panel to the balance unit by plugging in
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the connecting cable. 5. Plug the AC adaptor in to a suitable electrical outlet and into the
back of the balance. Use the threaded connector nut to firmly connect the power cord to the balance.
3. OPERATING YOUR BALANCE
NOTE: To avoid dust from entering the internal weighing mechanism, keep your balance door closed whenever it is not in use. Plug in and pre-warm your balance at least 30 minutes before use.
3-1 Basic weighing · Press the power key, the balance will turn on and display 0.0000g · Place a weigh boat or weighing container on the weighing pan · Press the TARE key and wait for the display to show 0.0000g · Place the sample onto the container and close the draft shield doors · The display will stabilize and the weight will be displayed · Repeat the steps to weigh the next sample
3-2 Count weighing This function is used to determine a total number of pieces of similar
weights. A known number of pieces are weighed as a reference, and the average weight of each piece is automatically calculated. An unknown quantity of pieces can then be calculated.
1. First set the sample quantity that will be used as the reference quantity weight. See the section 5-2 for PARAMETER SETTING. For example, for a reference quantity weight of 50 pcs, set up function C2 at setting 2 (display will read C2–2.)
2. Press the TARE key, the balance will display 0.0000g. 3. Press the MODE key repeatedly until the units “PCS” is displayed. 4. Place the sample on the pan, then press the SET key, the balance will
read the amount number of the samples.
Press the MODE key to change out of the counting mode.
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3-3 Percent Deviation This mode is used to calculate the percentage of weight a sample varies from a reference weight.
1. Empty the weigh pan; 2. Press the TARE key to zero the display; 3. “0.0000 g” will be displayed; Press MODE key till the display is %
mode. 4. Place the reference weight onto the weigh pan, and close the doors; 5. Press the SET key. 100% will be displayed; 6. Remove the reference weight from the weigh pan;
7. Place an object to be compared to the reference weight onto the weigh pan and close the draft shield doors.
8. A percentage value of the deviation between reference and the sample will be displayed.

3-4 DISPLAY AND CONTROL PANEL

DISPLAY SYMBOLS

g
ct Lb oz pcs %

······· CAL in CAL dn CAL … CAL up CAL-no CAL end

Gram
Carat Pound Ounce piece counting mode percentage mode Indicates the weight is stable positive indicator negative indicator
Waiting Calibration starting Load the appropriate calibration weight Calibrating Unload the calibration weight Not calibrated properly Calibration complete

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E E
—–.
SAVE –S — END

over the max capacity
under the readability Set key valid Reading the data Saving Saving complete

Control Panel and Display:

On/Off

Tare

Print

4. CALIBRATION
Background The Accuris analytical balance uses the equilibrium principle of electronic magnetic force. Among the various factors that may affect the accuracy of the balance, gravitational force is the most significant. In different geographical areas on the earth, gravitational force varies, and a balance should be calibrated at its specific installation location. The Accuris Analytical Balance can be calibrated using the internal “Quick-Cal” feature (only available on models W3100A-120 and W3100A-210) or by calibrating to a known reference weight.

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4-1 INTERNAL “QUICK-CALTM” (Models W3100A-120 and W3100A-210) The factory setting for this model is with internal calibration set. If the mode needs to be changed, FUNCTION C1 should be set to 0 (C1- 0). See section 5, Function Setting.
· Plug in and pre-warm the balance for at least 30 minutes before calibration.
· Turn on the balance by pressing the power key. · Make sure that the weigh pan is installed and empty. · Press the CAL key after “0.0000 g” is displayed. · The display will show CAL 100. · Press the CAL button again. · The balance will run through its internal calibration process
automatically.
4-2 CORRECTING INTERNAL CALIBRATION WEIGHT VALUE
Note: this feature is available for Internal Calibration balances only. The value of the internal calibration weight can be adjusted, if after an internal calibration the displayed weight outside of the accuracy specification of the balance.
Set up your balance per section 2-4 of this Operating Manual; let the balance equilibrate completely to the room temperature, then run the Internal Calibration per section 4-1.
Check the calibration using a suitable 100g calibration weight, and if the displayed value is outside of specification, greater than 100.0002, or less than 99.9998, the internal calibration weight value can be adjusted.
1. Change the function mode C3 to setting C3 ­ 1: a. Press SET key : ……. Is displayed b. Press PRINT key: C1-0 is displayed c. Press TARE key 2 times: C3-0 is displayed d. Press PRINT key to change to C3-1 e. Press Power button: SAVE … is displayed
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f. Press TARE button: S.. End is displayed. g. The calibration motor will run then 0.0000 is displayed h. Press Power button to enter stand by mode. 2. Press CAL key and then TARE alternatively and the number on the display will increase: 1, 2, 3, 4, etc. until 7 is displayed. 3. When the display shows 7, press the On/Off button. The display will show the current calibration weight adjustment value. Note this value as the current adjustment value. 4. Press CAL, and 100.0000 will flash on the display. 5. If the displayed value during the calibration check was lower than 6. 100.0000g (for example: 99.9995), then the internal cal reference needs to be increased by 0.0005. Press SET repeatedly to increase the weight value in 0.0001g increments until the new correction value is 0.0005 greater than the current adjustment value. 7. If the displayed value during the calibration check was higher than 8. 100.0000g (for example: 100.0005), then the internal calibration adjustment value needs to be decreased by 0.0005. Press CAL repeatedly to decrease the weight value in 0.0001g increments until the new correction value is reached. 9. Press TARE to save the weight value, then press On/Off button to return to standby mode. Adjust the function mode C3 back to the value C3-0 per above instructions. 10. Run the Quick-Cal program and check the results with the 100g calibration weight. If the displayed value is off, repeat the adjustment steps.
4-3 MANUAL CALIBRATION (Models W3100-120 and W3100-210) Plug in and pre-warm your balance at least 30 minutes before performing a the calibration procedure
· Press the Power button to turn on the balance · “0.0000 g” will be displayed; · Press CAL key, “CAL100” will be displayed. · Choose “CAL 100” for a 100g weight or “CAL 200” for a 200g
weight by pressing TARE.
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· Press CAL key again and “CAL …” is displayed. · Wait for “CAL dn” to be displayed. · Carefully place an external calibration weight of 100g or 200g (it
is recommended to use the calibration weight included with your balance, or supplied by Benchmark Instruments) on the center of the pan then close the doors; the balance will calibrate to the weight and display 100.0000 (or 200.0000) when complete.
Note: After calibration, check that the tolerance between the displayed value and the calibration weight value is no more than ±0.0002 g. Otherwise, repeat the calibration steps.
4-4 LINEAR CALIBRATION
If after manual or internal calibration, the displayed weights across the range of the balance are not accurate, linear calibration is required. Linear calibration requires calibration weights 50g, 100g, and 150g. Plug in and pre- warm your balance at least 30 minutes before performing the linear calibration procedure.
1. When the balance is in Standby Mode (plugged in to power, On/Off set to Off) press the CAL button.
2. The display will show 1. Press TARE then CAL, TARE, CAL alternatively and the number on the display will increase: 1, 2, 3, 4, etc.
3. When the display shows 8, press the On/Off button. The display will show 8888888
4. Press CAL to enter linear calibration mode, and wait for the balance to carry out the zero point calibration and Lnr 50 will be displayed
5. When Lnr 50 is displayed, place a 50g calibration weight on the pan and press TARE. Lnr will be displayed and then Lnr 100.
6. When Lnr 100 is displayed, place a 100g calibration weight on the pan and press TARE. Lnr will be displayed and then Lnr 150.
7. When Lnr 150 is displayed, place a 150g calibration weight on the pan and press TARE. When linear calibration is complete the display will show 0.0000g.
8. Remove the calibration weight and press TARE. Linear calibration is complete.
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4-5 200g CALIBRATION
The W3100A-210 balances may require an additional calibration near the maximum capacity of the balance (200g Calibration). If after calibration and linearity adjustment, the values are off in the range of 180g to 200g, a 200g calibration is required. Follow these steps:
1. Switch on the balance, so “0.0000g” is displayed 2. Press the CAL button: CAL 100 is displayed 3. Press TARE: CAL 200 is displayed 4. Press CAL button again: CAL in, then CAL …, then CAL dn is
displayed. 5. Place a 200g calibration weight onto the weigh pan. Display will
show CAL …, then CAL up. 6. Remove the calibration weight, and the calibration is finished.
Check the linearity at different weight values to confirm proper calibration. If the results are outside of specification, repeat above steps.
5. FUNCTION SETTINGS
5-1 CHANGING FUNCTION SETTINGS
You can reset and change the function as follows. · Turn on the balance with the weigh pan empty; · Wait for the display to show 0.0000g · Press the SET key then the PRINT key to enter the FUNCTION SETTING MODE. · C1- – – 0 will be displayed. · Press the TARE key to scroll through the different available FUNCTIONS from C1 through C9. · Press the PRINT key to change the FUNCTION setting numbers. · When finished changing a FUNCTION SETTING, press the TARE key, and the display will show the next FUNCTION. · Press the Power Button, and “SAVE _ ” will be displayed. · Press the TARE button, and “S – – End” will be displayed.
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· Press On/Off. The new function settings are now stored in memory.

5-2 FUNCTION SETTING INDEX

FUNCTION SETTING

DETAILS

C1:Calibration

C1–00 Auto-calibration using the internal

mode

weight

C1–01 Manual calibration using external weight

C2:Set the

C2–0 10

reference number

C2–1 20

of samples for

C2–2 50

piece counting

C2–3 100

C2–4 1000

C3:Data control

C3–00 No “0” point tracking status

C3–01 1d

C3–02 2d

C3–03 3d

C3–04 4d

C3–05 5d

C3–06 Not for user

C4:Serial baud

C4–00 2400

rate

C4–01 1200

C4–02 4800

C4–03 9600

C5:Data output

C5–00 On zero stable

mode

C5–01 On stable

C5–02 On command

C5–03 Continuous

C6: Audible beep C6–00 Off

on key press

C6–01 On

C7: Unused

C8:inUtenrufeserednce

C9: Unused

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6. TROUBLE SHOOTING

Problem No Display
Displayed weight value is unstable
Weighing value is not accurate

Possible Cause
·No power ·AC/DC Power
Adapter not functioning, or incorrect specifications ·Unsuitable environment ·Draft shield door is not closed properly ·There is an object under the weigh pan ·Unstable power supply ·Balance has not equilibrated to operating temperature ·The object weighed is unstable (evaporation or absorption of moisture) ·The balance is not calibrated ·The display is not tared before weighing ·The balance is not properly leveled ·Balance has not equilibrated to room temp.

Solution
·Plug in the AC/DC adapter ·Replace the adapter ·Contact the Service
Department
·Install the balance in a suitable location, avoid vibration, air movement, temperature fluctuations
·Close the door properly ·Remove any objects or
materials that may obstruct the pan ·Power on the balance and let it rest for 1 hour to reach operating temperature
·Calibrate the balance · Press TARE key to zero the display ·Level the balance by
turning the adjusting feet ·Power on the balance and
let it rest for 1 hour to reach operating temperature

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7. CARE AND MAINTENANCE The Accuris Analytical Balance is a high precision instrument that must be handled carefully and properly maintained. ·Do not use sharp objectssuch as a pen or pencil) on the keypad. ·Do not let objects fall on the weighing pan, otherwise the weighing system can be damaged; ·Do not expose the balance to high temperatures or dust; ·Do not disassemble the balance without proper training or instructions; ·It is recommended to cover the balance when not in use, and keep the balance clean and dry. 7-1 Cleaning ·Unplug the AC adapter before cleaning; ·Do not use any aggressive cleaning agents such as solvents or alcohols; ·Use a damp, soft cloth with mild detergent such as soap; ·Do not allow any liquids to enter the balance; ·After cleaning, wipe dry the balance with a piece of soft and dry cloth.
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© Copyright, 2022, Benchmark Scientific PO Box 709 Edison, NJ 08818 USA www.benchmarkscientific.com www.accuris-usa.com
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