TOOLOTS ES-HA Series Electronic Balance or Scale Instruction Manual

: October 30, 2023
: TOOLOTS

Table of Contents

TOOLOTS ES-HA Series Electronic Balance or Scale
Product Usage Instructions
Description
Construction and installation
Packing list
Operation
Care and maintenance
Error Codes
Troubleshooting
Specifications
Read User Manual Online (PDF format)
Download This Manual (PDF format)

TOOLOTS ES-HA Series Electronic Balance or Scale

Product Information

The ES-HA series electronic balances are high-precision weighing and measuring devices that use a load cell, microcomputer, and large LCD screen to provide accurate and stable results. These balances are easy to operate and offer fast weighing capabilities, making them suitable for use in various industries such as factories, mines, institutions, agriculture, transportation, construction, water conservation, medicine, and food, especially for weighing precious products.
The balances consist of a body, wind cover, weighing platform, level, and display window. They come with an electronic balance, AC adapter, operation instruction manual, one weight, and a wind cover. The balances have a division of 0.01g or higher.

Product Usage Instructions

Wiring Method

To connect the balance to a computer, follow the wiring method below:

Computer	Empty	RXD	TXD		Ground			Empty
Balance		RXD	TXD		Ground

Demonstrating Communication Software

To demonstrate communication software, use one of the following methods:

Use the Super End under WIN9X/NT/2000/XP.
Use the debugging assistant on gjwtech.com.
Use self-arranging communication software.

Order Input

Use the order schedule to input orders, as shown below:

Order Button	O	M	C	T	F	U	P
Function	Off	Count	Cal	Tare	Mode	Unit	Percent
ASCII	4FH	4DH	43H	54H	46H	55H	50H

Care and Maintenance

To keep the balance operating properly, keep the housing and platform clean and free from foreign material. Use a cloth dampened with mild detergent if necessary. Keep calibration masses in a safe, dry place. Unplug the AC adapter when not in use. For long-term storage, remove the batteries.

Error Codes

The ES-HA series electronic balances have error codes that indicate issues with the balance. Refer to the instruction manual for a list of error codes and their descriptions.

Operation

Turn On

Insert the round plug of the AC adapter into the square hole at the back of the balance.
Plug the AC adapter into an alternating outlet with two holes.
Alternatively, install 6 AA-size alkaline batteries in the battery holder at the bottom of the balance, paying attention to the Plus(+) and minus(-) ends.
With no load on the platform, press the power button. All the segments of the display will be shown, then the software version is displayed. When 0 is displayed, weighing can be done.

Turn Off

To turn off the balance, press the power button while the balance is at work.

Weighing Method

Press TARE to set the display to zero.
Place the object to be weighed on the platform.
Wait until the unit g appears and the reading is stable. Then, read the weight.

Balance Calibration

When performing precision weighing, calibrate the balance as follows:

Remove any objects from the platform, then press TARE to set the display to zero.
Press CAL, displaying SCALE or LINE. SCALE means calibrating the balance sensitivity; LINE means calibrating the balance linear.
Press TARE to make sure (If press MODE, the two kinds of calibration can be interchangeable.)

Sensitivity Calibration

When calibrating the balance sensitivity, use two different weight values:

Press MODE according to the shown calibrating weight value. The two calibrating weight values can be interchangeable.
Press TARE to confirm. The balance will display 0.
In a few seconds, the balance will display the calibrating weight value.
Place the corresponding calibrating weight on the center of the platform according to the shown weight value.
In a few seconds, the display will stop, and the calibrating weight value will be shown, indicating that calibration is complete. Normal weighing can now be done.

Description

ES-HA series electronic balances do weighing and measuring with high precision loadcell, microcomputer and big liquid crystal display screen. It has the advantage of simple operation, speedy weighing, accuracy, stability, and so on. It is widely used in factories, mines, institutions, agricultures, traffic, building, water conservancy, medicine, food, and so on. It’s more applicable in business for weighing precious products.

Construction and installation

Body
Wind Cover
Weighing Platform
Level
Display Window

Packing list

Electronic balance 1 pc.
AC adapter 1 pc.
Operation Instruction 1 copy
Balance (Its division is 0.01g or higher) with one weight and a wind cover.

Operation

Turn on
Put the round plug of AC adapter into the square hole at the back of the balance,then put AC adapter into an alternating outlet with two holes. Or install 6 alkaline batteries AA SIZE in the battery holder at the bottom of the balance (pay attention to the Plus(+) and minus(-) ends).
With no load on the platform, press All the segments of the display will be shown, then the software version is displayed. When “0” is displayed, weighing can be done.

Turn off
To turn off the balance, press while the balance is at work.

Weighing method
Press to set the display to zero. Put the object to be weighted on the platform.
Wait until the unit “g” appears and the reading is stable, then the weight can be read.

Balance calibration

When precision weighing is done, calibrate the balance as follows:

First take away the object from the platform, then press zero.
Press displaying “SCALE” or “LINE”. “SCALE” means calibrating the balance sensitivity; “LINE” means calibrating the balance linear.
Press to make sure (If press the two kinds of calibration can be interchangeable.)

Sensitivity calibration
When calibrating the balance sensitivity, two different weight values can be used. According to the shown calibrating weight value, press the two calibrating weight values can be interchangeable, press to make sure. After that, the balance will display “0″. In a few seconds, the balance will display the calibrating weight value. At this time, put the corresponding calibrating weight on the center of the platform according to the shown weight value. In a few seconds, the display will stop, and meanwhile the calibrating weight value will be shown, indicating that calibration is over. Normal weighing can be done.

Linear calibration

Being in the state of “LINE”, press the balance will display “0”. In a few seconds, the balance will display 1/2 weight value of full capacity; according to the shown weight value, put the corresponding calibrating weight on the center of the platform.
In a few seconds, the balance will display the full capacity weight value, according to the shown weight value, put the corresponding calibrating weight on the center of the platform. In a few seconds, the display will stop, and meanwhile the calibrating weight value will be shown, indicating that calibration is over. Normal weighing can be done.

NOTE: The balance linear has been calibrated in the factory, unless the users need to change the loadcell or have the right weight.

Mode| ES-103HA|

ES-203HA

|

ES-302HA

| ES-602HA| ES-502HA| ES-1002HA| ES-1202HA
---|---|---|---|---|---|---|---
Cal. Weight| 50g/100g| 100g/200g| 100g/300g| 200g/600g| 200g/500g| 500g/1000g| 500g/1200g

NOTE: Two kinds of weight value in the table can be used as the selected calibrating weight value when calibration is done.

Counting Function

The balance will count parts based on the weight of a reference sample: 5, 10, 20, 30, 40, or 50 parts. To get more accurate counting result, the weight of the parts should be equal, meaning the less the error of the single part is , the better.

Press the balance will display “pc CON”.
Place a container on the platform, then press the balance displays “pc ADD 5” which is the preset reference quantity. “5” shows the quantity of the reference sample.
To change the reference quantity, press repeatedly until the desired quantity is displayed. Press to make sure the quantity of the reference sample.

NOTE: If you want to restart parts counting, repeat the operation steps above. If “PC
Err” is displayed, it means the sample is too light to provide accurate results within
the error range set by the balance.

Add parts to the container as desired and read the quantity on the display. At this time, only “pc” counting signal is displayed (“g” is not displayed.).
Press to switch between parts counting and weight.

Unit Selection

This balance has the function to select these units: g, oz, ozt, dwt, lb, ct. Press to switch.

Percentage Setting Function
Put the object on the platform, when the reading is stable, press and hold until the symbol % is displaying, then release it, indicating that setting is over.

Backlight Function
Press to turn the backlight on or off.

RS232C Communication
Baud rate = 9600
Data form output by ES series electronic balances
+ (-) XXX. XX UNIT< CR>

All the segments above belong to ASC Ⅱ. Of these, the unit can be set by ES-HA series electronic balances.

Wiring method

Demonstrating communication software

The super end under WIN9X/NT/2000/XP
The debugging assistant on gjwtech.com
Self-arranging communication software

Order input ( as the order schedule at the right side )

Care and maintenance

To keep the balance operating properly, the housing and platform should be kept clean and free from foreign material. If necessary, a cloth dampened with a mild detergent may be used. Keep calibration masses in a safe dry place.
Unplug the AC Adapter when not in use. For long term storage, remove the batteries.

Error Codes

The following list describes the various errors which may appear on the display and the suggested remedy. Display description
Err 0 With the platform on, this signal indicates the platform is too light. Make it heavier properly. If this error still occurs, the sensor or the circuit board may be destroyed. The balance must be sent to the manufacturer to be serviced.
Err 1 The sample being weighed exceeds the capacity of the balance. If the error occurs when the sample is within the balance capacity, maybe the balance is not correctly calibrated.

Troubleshooting

SYMPTOM	PROBABLE CAUSE	REMEDY
No Display	Power Adapter not connected. Batteries are dead.	Connect power

Adapter. Replace batteries
Low Battery Indicator| Batteries are weak| Replace batteries
Incorrect Weight Reading| Balance was not set to zero. Balance has not been correctly calibrated.| With no load on the platform, press “ TARE ”. Then weighing can be done.

Recalibrate the balance.

Calibration Procedure does not work| Incorrect weights being used| Use correct weights.