ES-J220 Economical Electronic Analytical Balance, 220 g

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ES-J220 Economical Electronic Analytical Balance, 220 g

Product ID：CLTPtp017

Price: Please inquire PDF Format

Supply Ability:50SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberES-J220

Brand NameTJDEANTE

Payment TermsTT，PAYPAL，Alibaba.com Pay

ES-J220 Economical Electronic Analytical Balance, 220 g

Product Overview
The ES-J220 is an economical electronic analytical balance designed for routine laboratory precision weighing. It uses electromagnetic sensing technology with a bottom-mounted sensor structure, providing stable weighing performance in a compact laboratory design.
The balance features a clear LCD display and a fully transparent glass draft shield that provides unobstructed visibility of the sample during weighing. Its RS232 communication interface supports data transfer to computers, printers, and other compatible devices, while multiple weighing units provide flexibility for different laboratory applications.

Key Features
• 220 g weighing capacity: Suitable for routine laboratory precision weighing and sample preparation.
• 0.1 mg readability: Provides fine weighing resolution for analytical laboratory applications.
• Electromagnetic sensing: Stable sensor technology supports accurate and repeatable weighing.
• Fully transparent draft shield: Provides clear visibility of the sample while reducing the influence of air movement.
• LCD display: Bright and clear display facilitates quick reading of weighing results.
• RS232 communication: Supports data communication with computers, printers, and other compatible devices.
• Multiple weighing units: Allows convenient unit conversion for different measurement requirements.

Working Principle
The ES-J220 uses electromagnetic force compensation technology for precision weighing. When a sample is placed on the weighing pan, the sensor detects the change in load and the electromagnetic compensation system generates a corresponding balancing force.
The electronic system converts this signal into a weight value and displays the result on the LCD screen. The transparent draft shield helps minimize disturbances caused by airflow around the weighing pan, improving stability during precision measurements.

Technical Specifications

Specification	ES-J220
Product Type	Economical Electronic Analytical Balance
Weighing Capacity	220 g
Readability	0.1 mg
Repeatability	±0.2 mg
Linearity Error	±0.2 mg
Sensor Technology	Electromagnetic
Sensor Structure	Bottom-mounted
Display	LCD
Pan Size	Ø90 mm
Response Time (Average)	2.5 s
Operating Temperature	10–30°C
Operating Humidity	20–85% RH
Warm-up Time	30–60 min
Communication Interface	RS232
Baud Rate	300 / 600 / 1200 / 2400 / 4800 / 9600 bps
Net Weight	3.5 kg

Applications
• Analytical sample preparation: Accurate weighing of reagents, standards, and samples before laboratory analysis.
• Chemical laboratories: Routine weighing for chemical preparation, formulation, and analytical experiments.
• Pharmaceutical laboratories: Sample preparation, formulation research, quality control, and laboratory testing.
• Biological and life science laboratories: Weighing of reagents, media components, and other laboratory materials.
• Food and environmental testing: Precision weighing during sample preparation and analytical testing.
• Education and research: Routine precision weighing in universities, research institutes, and teaching laboratories.

Applicable Standards
The ES-J220 is designed for laboratory analytical weighing applications. Users should perform installation, leveling, warm-up, calibration, and routine verification according to applicable laboratory weighing procedures and local metrological requirements.

Comparison

Feature	ES-J220	Standard Precision Balance	Higher-End Analytical Balance
Capacity	220 g	Model dependent	Model dependent
Readability	0.1 mg	Typically 1 mg or 0.1 mg	Typically 0.1 mg or finer
Sensing Technology	Electromagnetic	Model dependent	Electromagnetic
Draft Shield	Fully transparent glass	Model dependent	Usually included
RS232	Yes	Model dependent	Usually available
Display	LCD	LCD/LED	LCD/touchscreen depending on model
Multiple Units	Yes	Usually available	Usually available
Typical Application	Routine analytical weighing	General laboratory weighing	High-precision analytical workflows
Cost Positioning	Economical	Mid-range	Higher-end

FAQ
Q1: What is the maximum weighing capacity of the ES-J220?
The maximum weighing capacity is 220 g.
Q2: What is the readability of the ES-J220?
The balance has a readability of 0.1 mg, suitable for routine analytical weighing applications.
Q3: What type of sensor does the ES-J220 use?
It uses electromagnetic sensing technology with a bottom-mounted sensor structure.
Q4: Why is a glass draft shield used?
The transparent glass draft shield helps reduce the influence of airflow on the weighing result while maintaining clear visibility of the sample.
Q5: Does the ES-J220 support computer or printer communication?
Yes. The standard RS232 interface supports data communication with compatible computers, printers, and other external devices.
Q6: How long should the balance warm up before precision weighing?
The specified warm-up time is 30–60 minutes. For high-precision measurements, users should follow the laboratory's applicable operating and calibration procedures.
Q7: What environmental conditions are suitable for the ES-J220?
The specified operating temperature is 10–30°C and the relative humidity range is 20–85% RH.
Q8: What laboratories can use the ES-J220?
It is suitable for chemical, pharmaceutical, biological, food, environmental, educational, and research laboratories requiring routine precision weighing.
Q9: What is the response time of the balance?
The average response time is approximately 2.5 seconds.

FAQ
Q1: What is the maximum weighing capacity of the ES-J220?
The maximum weighing capacity is 220 g.
Q2: What is the readability of the ES-J220?
The balance has a readability of 0.1 mg, suitable for routine analytical weighing applications.
Q3: What type of sensor does the ES-J220 use?
It uses electromagnetic sensing technology with a bottom-mounted sensor structure.
Q4: Why is a glass draft shield used?
The transparent glass draft shield helps reduce the influence of airflow on the weighing result while maintaining clear visibility of the sample.
Q5: Does the ES-J220 support computer or printer communication?
Yes. The standard RS232 interface supports data communication with compatible computers, printers, and other external devices.
Q6: How long should the balance warm up before precision weighing?
The specified warm-up time is 30–60 minutes. For high-precision measurements, users should follow the laboratory's applicable operating and calibration procedures.
Q7: What environmental conditions are suitable for the ES-J220?
The specified operating temperature is 10–30°C and the relative humidity range is 20–85% RH.
Q8: What laboratories can use the ES-J220?
It is suitable for chemical, pharmaceutical, biological, food, environmental, educational, and research laboratories requiring routine precision weighing.
Q9: What is the response time of the balance?
The average response time is approximately 2.5 seconds.