Sartorius Entris II Basic Essential Toploading Balance User Manual

1. Introduction

The Sartorius Entris II Basic Essential Toploading Balance is a precision instrument designed for accurate weighing in various laboratory and industrial applications. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your balance. Please read this manual thoroughly before using the device.

2. Safety Information

To ensure safe operation and prevent damage to the balance or injury to personnel, observe the following safety precautions:

• Always read and understand all instructions in this manual before operating the balance.
• Operate the balance only on a stable, level, and vibration-free surface.
• Avoid exposing the balance to extreme temperatures, direct sunlight, or strong drafts.
• Do not exceed the maximum weighing capacity of 8200 g.
• Use only the power adapter supplied with the balance.
• In case of liquid spills, immediately disconnect the balance from the power supply and clean it carefully. The balance is constructed with chemical-resistant materials, but prompt cleaning is recommended.
• Do not attempt to open or repair the balance yourself. Refer all servicing to qualified personnel.

3. Package Contents

Verify that all components are present and undamaged upon unpacking:

• Sartorius Entris II Basic Essential Toploading Balance (Model BCE8201-1S)
• Weighing Pan (7 x 7 inches)
• Power Adapter (100 to 240 VAC, 50/60 Hz)
• User Manual

4. Setup

4.1 Unpacking and Placement

Carefully remove the balance from its packaging. Place the balance on a firm, level, and stable surface, away from sources of vibration, heat, and air currents (e.g., air conditioning vents, open windows). Ensure sufficient space around the balance for operation and maintenance.

4.2 Assembly

Place the weighing pan onto the pan support of the balance. Ensure it is seated correctly and does not wobble.

An image showing the Sartorius Entris II Basic Essential Toploading Balance. The balance features a digital display and a circular weighing pan, indicating its readiness for precision measurements.

4.3 Power Connection

Connect the power adapter to the balance and then plug it into a suitable electrical outlet (100 to 240 VAC, 50/60 Hz). Allow the balance to warm up for at least 30 minutes for optimal stability and accuracy.

4.4 Initial Calibration

The Entris II Basic Essential balance uses external calibration. For accurate results, perform an external calibration before first use and regularly thereafter. Refer to the on-screen prompts or the balance's menu for detailed calibration procedures using a certified external weight.

5. Operating Instructions

5.1 Turning On/Off

Press the [ON/OFF] button to turn the balance on. To turn it off, press and hold the [ON/OFF] button until the display switches off.

5.2 Basic Weighing

1. Ensure the weighing pan is empty and clean.
2. Press the [TARE] button to set the display to zero.
3. Carefully place the item to be weighed onto the center of the weighing pan.
4. Wait for the stability indicator to appear on the display, then read the weight.
5. Remove the item from the pan.

5.3 Weighing Units Selection

The balance supports various weighing units. To change the unit, navigate through the menu using the hybrid screen or dedicated unit button (if available). Available units include: gram (g), kilogram (kg), carat (ct), pound (lb), ounce (oz), troy ounce (ozt), Hong Kong tael (Hkt), Singapore tael (Sgt), Taiwan tael (Twt), grain (gn), pennyweights (dwt), milligram (mg), parts per pound (tlh), China tael (tlj), mommes (mom), Austrian carat (ct), tola (tol), baht (baht), mesghal (msg), and Newton (N).

5.4 Advanced Applications

The Entris II Basic Essential balance includes 12 built-in applications accessible via the menu. These applications enhance functionality for specific tasks:

• Dosing: For precise dispensing of materials.
• Counting: For determining the number of pieces based on a reference weight.
• Percentage Weighing: For displaying the weight as a percentage of a reference weight.
• Mixing: For weighing multiple components to a target total.
• Totalizing: For summing up individual weighing results.
• Animal Weighing: For stable weighing of unstable loads.
• Free Factor: User-defined conversion factor.
• Density Determination: For calculating the density of solids and liquids.
• Statistics: For statistical analysis of weighing series.
• Peakhold: For capturing the maximum weight value.
• Checkweighing: For checking if a weight is within a defined tolerance range.
• Mass Unit Conversion: For converting between different mass units.
• Underfloor Weighing: For weighing items suspended below the balance.

Refer to the balance's on-screen menu and specific application guides for detailed instructions on using each function.

5.5 Data Transfer

The balance is equipped with a USB-C interface for direct connection to a PC. This 'PC-direct' functionality allows data transfer to applications like Microsoft Word or Excel without requiring additional software. An RS232 interface is also available for connectivity.

6. Maintenance

6.1 Cleaning

Regular cleaning is essential for maintaining accuracy and extending the life of your balance. The balance's construction of polybutylene terephthalate, stainless steel, and glass provides high chemical resistance.

• Always disconnect the balance from the power supply before cleaning.
• Use a soft, damp cloth with a mild detergent to clean the exterior surfaces.
• Do not use abrasive cleaners, solvents, or harsh chemicals, as these can damage the finish or internal components.
• Ensure no liquids enter the balance housing.
• The weighing pan can be removed for separate cleaning.

6.2 Storage

When not in use for extended periods, store the balance in a clean, dry, and dust-free environment. Protect it from extreme temperatures and humidity.

6.3 Regular Calibration

Perform external calibration regularly, especially after relocation, significant temperature changes, or if weighing accuracy is critical. The optional isoCAL internal calibration feature, if activated, can save time and ensure consistent accuracy.

7. Troubleshooting

If you encounter issues with your balance, refer to the following common problems and solutions:

For problems not listed here or if solutions do not resolve the issue, please contact Sartorius customer support.

8. Specifications

9. Warranty and Support

For detailed warranty information, technical support, or service requests, please contact Sartorius customer service directly or visit the official Sartorius website. Keep your purchase receipt and model number (BCE8201-1S) handy when contacting support.