Adam CQT 202 Compact Portable Precision Balance User Manual

Adam CQT 202 Compact Portable Precision Balance

Easy Reference:

Model name of the balance:|
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Serial number of the unit:|
Software revision number

(Displayed when power is first turned on):

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Date of Purchase:|
Name of the supplier and place:|

SET UP

UNPACKING AND SETTING UP YOUR BALANCE

1. Remove the shipping protection screw and round cover as shown below using the Allen key supplied in the plastic bag. (It is advisable to keep the shipping protection screw and the round cover along with the packing box for use during shipping to another location in the future).

2. Place the pan (which comes separately packed) in the receptacles on the top cover.
   Gently place the plastic pan support into the receptacle and secure it with the screw supplied in the plastic bag. Be careful when putting the screw in that you do not use too much force as it can damage the loadcell. You should just be able to use light force to secure the screw.

3. Place the stainless steel pan on top of the plastic pan.

4. Place the balance on a firm and flat surface for accurate weighing.

INSTALLING BATTERIES

Remove the battery compartment cover and insert six batteries (R6P/LR6 /AA size) into the battery compartment.

OVERVIEW – DISPLAY / KEYBOARD

LOCATING AND PROTECTING YOUR BALANCE

In order to keep your balance functioning at its best we suggest that you do the following:

• Avoid extremes of temperature. Do not place in direct sunlight or near air conditioning vents.
• Make sure the balance is located on a strong table and free from vibration.
• Avoid unstable power sources. Do not operate near large users of electricity such as welding equipment or large motors. Do not leave batteries in the balance if you are not using it for a long time.
• Keep free from vibration. Do not place near heavy or vibrating machinery.
• Avoid high humidity that might cause condensation, and keep away from direct contact with water.
• Do not place near open windows, air-conditioning vents or fans that may cause a draft and unstable readings.
• Keep the balances clean, and do not stack material on the balance when it is not in use. The Core has a stacking feature allowing more than one unit to be stacked on top of each other. For more details on this see the section on storing.

STORING WHEN NOT IN USE

If you have any of the HighlandTM series or Core BalanceTM lines you can store them easily on top of each other. This helps to save space and protect them from damage.

Note: Only 4.7” / 120mm ø pan-size models can be stacked for storage. Core models with 5.7” / 145mm ø may be stacked at the top of the pile but machines cannot be stacked on top of them due to the larger pan size.

BASIC OPERATION

TURNING ON THE BALANCE

Plug in the unit using the DC adapter or power from the batteries.

1. Press the On/Off button and the balance will automatically show Cqt-1.0 Cqt then count from 0 to 9 for a few seconds, and show the voltage X.X Vol where x. x is the voltage of the battery or the DC adapter. Finally it will display “0.00” along with the last selected weighing unit, Stable symbol, and Zero symbol.
2. The balance is ready to be used.
3. To turn the balance off after use press the [on/off] key again. There is an auto power-off function that will automatically turn the unit off, this can be set in the parameters section.

ZEROING / TARE

• You can press the [Tare] key to set a new zero point. Zero will be set if the reading on the balance is less than 3% of the balance’s capacity. This may be necessary if the weight is not reading zero with nothing on the pan. The zero indicator will show up in the top left corner of the LCD.
• If you are using a container to weigh then you can place this on the platform and press the [Tare] key, providing the container weight is more than 3% of the maximum capacity of the balance, the display will show zero and NET will light up on the display. You can then weigh your object in the container. Tared weight is subtracted from the total balance’s capacity.

Note: When the container is removed a negative value will be shown. If the balance was tared just before removing the container, this value is the gross weight of the container plus all items inside the container that were removed.

WEIGHING

• To determine the weight of a sample, first take an empty container (if used), then place the sample in the container. The display will show the weight and the unit of weight currently in use. The stable indicator will light up when the reading is stable.

WEIGHING UNITS

• To change the weighing units, press [Unit] to cycle through the available units. See the Parameter section to enable or disable the weighing units. Once the unit has been selected, the weight will be displayed in the selected unit and a symbol for the weight will be shown.

PARAMETERS

The balance has 3 parameters that can be set by the user.

OFF BL backlight is off

1  BL backlight is automatic

2  BL backlight is always on

Weighing unit| See section 5.3| Sets the units to be used

kg – g – lb – oz – ct – dr – GN – N-tl.t

AUTO POWER OFF

The auto power-off function helps conserve power when using the batteries or DC adapter. The Auto switch-off time may be set up by the user and is the time after a period of inactivity i.e. no weight movement or key presses.

1. To set this parameter turn the power off, press and hold the [Tare] key then press the [on/off] key once, then release the [Tare] key.
2. The display will show the first function XX PWR, where XX is the last setting.
3. Press [Tare] to select the settings as follows:
   Off PWR| Auto power off
   ---|---
   10 PWR| 10 seconds before the power will switch off
   20 PWR| 20 seconds before the power will switchs off
   30 PWR| 30 seconds before the power is switched off
   40 PWR| 40 seconds before the power is switched off
   50 PWR| 50 seconds before the power is switched off
   60 PWR| 60 seconds before the power is switched off
   70 PWR| 70 seconds before the power will switch off
   80 PWR| 80 seconds before the power will switch off
   90 PWR| 90 seconds before the power is switched off
4. Press the [Unit] key to confirm the setting
5. To exit turn the balance off and back on again

SETTING THE BACKLIGHT

The backlight may be enabled or disabled by the user. If the backlight is disabled, the battery life will be greater.

The following settings are available:

1 BL| Sets the backlight to operate automatically when weight is

placed on the balance or a key is pressed.

---|---
2 BL| Sets the backlight to be on all the time.
OFF BL| Sets the backlight to be off.

1. To set this parameter turn the power off, press and hold the [Tare] key then press the [on/off] key once, then release the [Tare] key.
2. The display will show the first function PWR
3. Press the [Unit] key until the display shows XX BL where XX is the last setting
4. Press the [Tare] key to select the settings as follows 1 BL – 2 BL – OFF BL
5. Press the [Unit] key to confirm the setting
6. To exit turn the balance off and back on again

ENABLING THE WEIGHING UNITS

You can enable and disable the weighing units available to the user when they press the [Unit] key as described in section 4.4 Weighing Units.

1. To set this parameter turn the power off, press and hold the [Tare] key then press the [on/off] key once, then release the [Tare] key.
2. The display will show the first function PWR
3. Press the [Unit] key until the display shows you XX g where XX is the last setting on or off.
4. Press the [Tare] key to select on or oFF.
5. Press the [Unit] key to move to the next weighing unit.
6. Repeat steps 5 and 6 until you have set all of the weighing units.
7. To exit turn the balance off and back on again

The following table shows the different weighing units that are available to the user and the conversion factors for each.

Name of the

Units

| Description| Conversion

Factor

| Display

Symbol

---|---|---|---
Kilograms| A standard metric unit| 0.001| Kg
Grams| A standard metric unit| 1.0| G
Pounds| Standard weighing unit in UK/USA.| 0.002205| Lb
Ounce| Avoirdupois ounce.

16 ounces make a pound.

| 0.03528| OZ
Carat| Used for weighing jewelry and gems,

etc.

| 5.0| ct
Dram| Avoirdupois unit there are 16 DR in an

ounce.

| 0.564383| DR
Grains| A basic weighing unit in the imperial

system. Used to weigh gunpowder.

| 15.432| GN
Newtons| Used to measure force| 0.009808| N
Taiwanese

taels

| Used to weigh coral, pearls etc.| 0.026666| Tl.t

CALIBRATION

• Calibration may be required when the balance is initially installed or moved to a new location. Over time and use, mechanical deviations may occur so it is recommended that you calibrate your balance regularly for peak performance.
• Before calibrating you should make sure you have the correct weights. The weights should be known to an accuracy that is appropriate for the balance being calibrated, for example, OIML Class M1 type or ASTM E617 Class 4. If you do not have the correct weights do not attempt calibration.

Model| CQT 202| CQT 251| CQT 601| CQT 1501| CQT 2601| CQT 2000| CQT 5000
---|---|---|---|---|---|---|---
Calibration| | | 200g| 500g| | | 1000g
Weight| 100g| 100g| Or| Or| 1000g| 1000g| Or
| Or| Or| 400g| 1000g| Or| Or| 3000g
| 200g| 200g| Or| Or| 2000g| 2000g| or
| | | 600g| 1500g| | | 5000g

1. To calibrate the balance apply power and switch the balance on, whilst the display is cycling through it’s test routine press the [Tare] and [Unit] keys at the same time, then release after 1 second.
2. The display will show UnLOAD and remove any objects from the pan.
3. Press the [Tare] key to enter a zero value.
4. The value last used for calibration will be displayed (see above table). To select a different calibration weight, press the [Unit] key.
5. Once you have selected the calibration weight to be used press the [Tare] key.
6. LOAD will be displayed, place the calibration weight on the pan.
7. Once the stable sign is shown press the [Tare] key.
8. If the weight is within 5% of the last calibration value the display will show PASS and exit the calibration mode. If the calibration is not successful the display will show FAIL and exit the calibration mode, if the calibration fails try it again.

TROUBLESHOOTING

ERROR MESSAGES

If an error message is shown, repeat the step that caused the message. If the error message is still shown then contact your dealer for support.

ERROR

CODE

| DESCRIPTION| POSSIBLE CAUSES| Solutions
---|---|---|---
ADO| A/D Value too high.| Weight on the pan when turning on.

Improper calibration of the balance.

Damaged load cell.

Damaged Electronics.

| Remove any weight from the stainless steel pan.

Recalibrate.

ADL| A/D Value too low.| The pan is not installed when turning on.

Calibration is not correct.

Damaged load cell.

| Install the pan and power it back on.

Recalibrate.

—–| A/D count is not correct when turning the balance on.| Load cell damaged. Electronics damaged.| Remove any weight from the stainless steel pan and try rebooting. Try calibrating the

balance.

Unit-E| Unit error.| |
| Low battery indicator.| Batteries may be flat.| Charge the battery.
FAIL| Calibration failure.| Incorrect mass used to calibrate. The user calibration is not within 5% of factory calibration.

Possible damage to loadcell.

| Try to recalibrate, check that the weight used to calibrate matches of the value of

the balance.

| Unstable – the machine

cannot get a stable reading.

| Possible damage to the Loadcell.| Make sure the balance is on a

flat surface and away from vibration.

| No Power when turning

on.

| The battery may be flat. DC adapter

may not be working.

| Change the batteries. Or use

the DC adapter

REPLACEMENT PARTS AND ACCESSORIES

If you need to order any spare parts and accessories, contact your supplier or Adam Equipment. A partial list of the more common items follows:

SPECIFICATIONS

Model #| CQT-202| CQT- 251| CQT-601| CQT-1501| CQT-2601| CQT-2000| CQT-5000
---|---|---|---|---|---|---|---
Maximum Capacity| 200g| 250g| 600g| 1500g| 2600g| 2000g| 5000g
Readability| 0.01g| 0.1g| 0.1g| 0.1g| 0.1g| 1g| 1g
Resolution| 1:20000| 1:2500| 1:6000| 1:15000| 1:26000| 1:2000| 1:5000
Repeatability (Std

Dev)

| 0.02g| 0.1g| 0.1g| 0.2g| 0.2g| 1g| 1g
Linearity ±| 0.02g| 0.1g| 0.1g| 0.2g| 0.2g| 1g| 1g
Units of Measure| kg / g / lb / oz / ct / dr / GN / N/tl.t
Stabilisation Time| 3 seconds| 2 seconds| 3 seconds| 2 seconds
Operating

Temperature

| 0ºC to 40ºC

32ºF to 104ºF

Power Supply| 12VDC adapter (800mA South Africa, 500mA rest of world), or 6x AA batteries
Calibration| Push button calibration using external mass
Calibration Mass| 200g| 250g| 600g| 1500g| 2000g| 2000g| 5000g
Display| 6 digit LCD, 18mm digits, with backlight
Draft shield

(diameter x h)

| 132mm ø x 82mm

(5.2” ø x 3.2”)

| N/A
Balance Housing| ABS Plastic
Pan Size| 120mm ø (4.7” ø)| 145mm ø (5.7” ø)
Overall Dimensions

(w x d x h)

| 173 x 255 x 86mm (6.8” x 10” x 3.4”)

Without draft shield

Net Weight| 820g (1.8lb)

WARRANTY STATEMENT

• Adam Equipment offers a Limited Warranty (Parts and Labour) for any components that fail due to defects in materials or workmanship. Warranty starts from the date of delivery.
• During the warranty period, should any repairs be necessary, the purchaser must inform its supplier or Adam Equipment Company. The company or its authorized Technician reserves the right to repair or replace the components at any of its workshops at no additional cost, depending on the severity of the problems. However, any freight involved in sending the faulty units or parts to the Service Centre should be borne by the purchaser.
• The warranty will cease to operate if the equipment is not returned in the original packaging and with the correct documentation for a claim to be processed. All claims are at the sole discretion of Adam Equipment.
• This warranty does not cover equipment where defects or poor performance is due to misuse, accidental damage, exposure to radioactive or corrosive materials, negligence, faulty installation, unauthorized modifications or attempted repair, or failure to observe the requirements and recommendations as given in this User Manual.
• This product may include a rechargeable battery that is designed to be removed and replaced by the user. Adam Equipment warrants that it will provide a replacement battery if the battery manifests a defect in materials or workmanship during the initial period of use of the product in which the battery is installed.
• As with all batteries, the maximum capacity of any battery included in the product will decrease with time or use, and battery cycle life will vary depending on the product model, configuration, features, use, and power management settings. A decrease in maximum battery capacity or battery cycle life is not a defect in materials or workmanship and is not covered by this Limited Warranty.
• Repairs carried out under the warranty do not extend the warranty period. Components removed during warranty repairs become company property.
• The statutory rights of the purchaser are not affected by this warranty. The terms of this warranty is governed by UK law. For complete details on Warranty Information, see the terms and conditions of sale available on our website.

EU Declaration of Conformity

CORE CQT DIGITAL ELECTRONIC WEIGHING BALANCE SERIES

Adam Equipment Co. Ltd.

• Maidstone Road, Kingston Tel: +44 (0) 1908 274545
• Milton Keynes, MK10 0BD Fax: +44 (0) 1908 641339
• United Kingdom Email:
  • sales@adamequipment.co.uk
  • www.adamequipment.com

We declare under our sole responsibility that the balance models listed below marked with “CE” are in conformity with the directives and standards mentioned.

Adam Equipment Model CQTxxxx balances.

Signed for and on behalf of: Adam Equipment Company Ltd. United Kingdom, 20 Feb 2016 Clive Jones, Quality & Product Manager.

FREQUENTLY ASKED QUESTIONS

What is the Adam CQT 202 Compact Portable Precision Balance?

The Adam CQT 202 is a compact and portable precision balance designed for accurate weighing in various applications. It is suitable for both laboratory and field use, providing reliable measurements in a compact form factor.

What is the maximum weight capacity of the CQT 202 balance?

The Adam CQT 202 Compact Portable Precision Balance typically has a maximum weight capacity of 200 grams or another specified capacity. Refer to the product specifications for the exact weight capacity of the specific model.

Is the CQT 202 balance suitable for educational use?

Yes, the Adam CQT 202 Compact Portable Precision Balance is suitable for educational use. It is often used in laboratories, classrooms, and educational settings for teaching and demonstrating weighing principles.

What is the readability or precision of the CQT 202 balance?

The readability or precision of the Adam CQT 202 balance is typically specified in grams (g) or another unit of measurement. Check the product specifications for detailed information on the balance's readability.

Does the CQT 202 balance have a tare function?

Yes, the Adam CQT 202 Compact Portable Precision Balance is typically equipped with a tare function. This feature allows users to reset the balance to zero after placing a container or additional items on the weighing pan, ensuring accurate measurements of the net weight.

What units of measurement are supported by the CQT 202 balance?

The Adam CQT 202 balance typically supports multiple units of measurement, including grams (g), carats (ct), and ounces (oz). Users can choose the desired unit based on their specific weighing needs.

Is the CQT 202 balance equipped with a stainless steel weighing pan?

Yes, the Adam CQT 202 Compact Portable Precision Balance often features a stainless steel weighing pan. This material is durable, easy to clean, and suitable for various weighing applications.

What is the power source for the CQT 202 balance?

The power source for the Adam CQT 202 Compact Portable Precision Balance can vary. Some models may operate on batteries, while others may have an AC power option. Check the product specifications for information on the power source and any available battery-saving features.

Can the CQT 202 balance be calibrated?

Yes, the Adam CQT 202 balance can be calibrated to ensure accurate weighing results. Calibration procedures may vary, and it is recommended to follow the guidelines provided in the user manual or contact the manufacturer for calibration instructions.

Is the CQT 202 balance legal for trade or certified?

The certification status of the Adam CQT 202 Compact Portable Precision Balance can vary. Some models may be certified as legal for trade, meaning they meet specific requirements for commercial transactions by weight. Check the product specifications or certification labels for details.

What is the operating temperature range of the CQT 202 balance?

The operating temperature range of the Adam CQT 202 balance is specified by the manufacturer. It is important to use the balance within the recommended temperature range to ensure accurate and reliable measurements. Refer to the product documentation for detailed temperature specifications.

Does the CQT 202 balance have an auto-off feature for power saving?

Yes, the Adam CQT 202 Compact Portable Precision Balance typically includes an auto-off feature to save power. This function automatically turns off the balance after a period of inactivity, extending the battery life and promoting energy efficiency.

Can the CQT 202 balance be connected to a computer or printer?

Yes, the Adam CQT 202 balance is typically equipped with communication ports, such as RS-232 or USB, allowing it to be connected to a computer, printer, or data logging device. This enables users to record and analyze weighing data.

What is the warranty coverage for the CQT 202 balance?

The warranty for the Adam CQT 202 Compact Portable Precision Balance typically ranges from 1 year to 5 years.

Is the CQT 202 balance resistant to environmental factors such as dust and moisture?

The resistance to environmental factors such as dust and moisture can vary. Check the product specifications or documentation for information on the environmental protection features of the Adam CQT 202 Compact Portable Precision Balance.

Can the CQT 202 balance be used for density determination?

Density determination functionality may not be available on the Adam CQT 202 balance. Check the product specifications or documentation to confirm whether the balance supports density determination applications.

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