This document describes the Entris® II Advanced Line of analytical and precision balances, specifically models BCA64-1x, BCA124-1x, BCA224-1x, BCA324I-1x, BCA223-1x, BCA323-1x, BCA423-1x, BCA623-1x, and BCA1203I-1x. These balances are designed for accurate mass determination of liquid, paste, powder, or solid materials in indoor environments, such as industrial areas.
Function Description:
The Entris® II Advanced Line balances are high-resolution devices primarily used for weighing. They feature a control unit with an operating display, a toolbar, metrological data display, a function bar, and an application toolbar. The main menu provides access to various applications like Weighing, Mixing, Statistics, Components, Density, Percentage, Conversion, Animal Weighing, Checkweighing, Peak Hold, Counting, and Pipette Test.
The Weighing application determines the weight of a sample within the device's specific weighing range.
The Mixing application allows weighing up to 99 components sequentially for a mixture or formula in one container, with automatic taring after each component.
The Statistics application saves and statistically analyzes up to 99 weight values and calculated values.
The Components application sums up to 99 weight values, allowing weighing in different containers with taring before each component.
The Density application determines the density of solid samples using a density set based on the buoyancy method (Archimedes' Principle).
The Percentage application determines the percentage share or difference of a sample relative to a reference weight.
The Conversion application multiplies the weight value by a user-defined factor, which is saved in protected memory.
The Animal Weighing application is designed for moving samples (e.g., live animals) and unstable environments, averaging a defined number of measurements.
The Checkweighing application verifies if a weight value falls within specified tolerances.
The Peak Hold application calculates and displays the maximum weight value of a sample for five seconds after removal.
The Counting application counts parts by comparing them with a reference sample.
The Pipette Test application saves and statistically analyzes up to 99 pipette measurements.
The device also includes internal calibration and adjustment functions (isoCAL for I-1x models), which can be set to automatic or manual, triggered by time intervals or temperature changes. External calibration and adjustment are also supported. User management allows for creating profiles (Administrator, Supervisor, Operator) with different access rights to system settings and applications.
Important Technical Specifications:
- Installation Site: Indoor use only, max. height 3000 m above sea level.
- Temperature:
- In operation: +5 °C to +40 °C
- Storage and transport: -10 °C to +60 °C
- Relative Humidity:
- Up to 31 °C: 15% to 80% non-condensing
- 31 °C to 40 °C: >50% decreasing linearly
- Power Supply: Only with Sartorius power supply unit YEPS01-15V0W.
- Primary: 100-240 V (±10%), 50-60 Hz, max 0.2 A.
- Secondary: 15 VDC, max 0.53 A.
- Backup Battery: Lithium battery, type CR2032, with a minimum service life of 10 years at room temperature.
- Warm-up Time: Approximately 2 hours.
- Interfaces:
- USB-C (host): for Sartorius printer, second display, FTDI cable, or USB stick (max. 32 GB FAT32).
- PC-USB (device): for PC connection.
- RS232 (9-pin D-sub connector): for printer, PC, or second display, max. 10 m cable length.
- Materials: Housing (PBT), control unit (Glass), draft shield (Glass / PBT).
- Device Dimensions: (Example for precision balance) 317 mm (width) x 240 mm (depth) x 343 mm (height). Weighing pan diameter: 120 mm or 90 mm depending on model.
- Gross Weight: Ranges from 7.70 kg to 8.10 kg depending on the model and internal calibration function.
- Metrological Data (Examples for BCA324 | BCA224 | BCA124 | BCA64):
- Readability (d): 0.1 mg
- Maximum capacity (Max): 60 g to 320 g
- Repeatability (typical): 0.08 mg to 0.1 mg
- Linearity deviation (typical): 0.06 mg
- isoCAL temperature change: 1.5 K
- isoCAL time interval: 4 h
- Verification scale interval (e): 1 mg
- Minimum load (Min): 10 mg
- Recommended external calibrated test weight: 50 g to 200 g (E2 class).
- Metrological Data (Examples for BCA1203 | BCA623 | BCA423 | BCA323 | BCA223):
- Readability (d): 1 mg
- Maximum capacity (Max): 220 g to 1200 g
- Repeatability (typical): 0.5 mg to 1 mg
- Linearity deviation (typical): 0.6 mg
- isoCAL temperature change: 1.5 K to 2 K
- isoCAL time interval: 4 h to 6 h
- Verification scale interval (e): 10 mg
- Minimum load (Min): 20 mg to 100 mg
- Recommended external calibrated test weight: 200 g to 1000 g (E2 or F1 class).
Usage Features:
The device is operated via a touch-sensitive display. Users can navigate through menus by swiping. Input screens feature alphanumeric and numeric keypads.
- On/Off (Standby): Press to switch on, press and hold for standby.
- Zero/Tare: Buttons for zeroing and taring the device.
- Print: Exports readouts to connected data interfaces.
- Menu: Opens the main menu.
- isoCAL: Indicates if calibration/adjustment is needed (orange highlight) and starts the isoCAL function.
- Leveling: Indicates if the device is leveled and opens the Leveling Wizard.
- Toggle between weight units: Changes the displayed weight unit and accuracy settings.
- User Login: Required if user profiles are enabled, with administrator, supervisor, and operator roles having different access rights.
- Electronic Level Indicator: Guides the user to level the balance by adjusting the leveling feet.
- Application Settings: Parameters for each application can be configured, such as print format, interval times, and ID functions.
- User Settings: Adjust display brightness, acoustic signal, date/time display, recall last value, toggle unit, and easy filter adaptation.
Maintenance Features:
- Cleaning: The analytical draft shield can be detached for cleaning. The device should be disconnected from power, cleaned with suitable agents (non-corrosive, non-chlorine, non-solvent), and wiped with a slightly damp cloth.
- Maintenance Schedule: Regular functional tests of the device are recommended, to be performed by Sartorius Service.
- Software Update: Contact Sartorius Service for software updates.
- Troubleshooting: The manual provides a comprehensive list of warning messages and troubleshooting steps for common malfunctions, such as invalid weight values, overloaded device, communication errors, and incorrect leveling.
- Decommissioning and Disposal: Instructions are provided for safely taking the device out of service, storing it, and returning it for repair or disposal. The device must be decontaminated if it has come into contact with hazardous substances. Batteries (CR2032 lithium cell) must be disposed of properly.
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