COLO.Science — WEIGHING / ANALYTICAL BALANCES — RHONE SERIES
RHONE analytical balances 120–400 g / 0.1 mg with internal smart calibration
RHONE analytical balances are high-precision laboratory balances for demanding analytical weighing with 0.1 mg readability, automatic internal smart calibration and colour touch-screen operation. The series includes ANB-RHONE120, ANB-RHONE220, ANB-RHONE320 and ANB-RHONE400, covering routine analytical weighing, QC testing, sample preparation, formulation, density workflows, parts counting and documented laboratory measurement procedures.
| Model table | Weighing Overview | Weighing Catalogue | Online TechSpec | Request quote |
COLO.SCIENCE — ANALYTICAL BALANCES FOR 0.1 mg LABORATORY WEIGHING
Internal calibration, dual-range operation and touch-screen analytical weighing
RHONE analytical balances combine electromagnetic monoblock force compensation, automatic internal smart calibration, real-time temperature compensation and a three-sided glass windshield. This configuration supports stable analytical weighing where small mass differences, environmental stability and repeatable results are important.
The RHONE series is suitable for laboratories that need 0.1 mg readability with direct touch-screen operation, USB/RS232 communication and optional software or printer workflows. The balance can support routine weighing, percent weighing, parts counting, check weighing, animal weighing, target weighing, summarization and density workflows with optional accessories.
Key features
- RHONE analytical balances with 120 g, 220 g, 320 g and 400 g model capacities.
- 0.1 mg readability for demanding analytical weighing.
- Electromagnetic monoblock force compensation for stable laboratory performance.
- Fully automatic internal smart calibration triggered by temperature, time, condition change or manual operation.
- Colour LCD touch screen with direct access to common balance settings.
- USB and RS232 interfaces for compatible printer, software or PC documentation workflows.
Suitable for
- Analytical chemistry and routine laboratory weighing.
- Sample preparation, formulation and QC control.
- Pharmaceutical, educational and research laboratories.
- Percent weighing, target weighing and check weighing.
- Density measurement workflows with optional hydrostatic set.
- Documented weighing with optional printer, software and E2 control weight.
RHONE analytical balance, printer and calibration accessories

RHONE analytical balance with glass windshield, touch-screen operation, internal smart calibration and ø90 mm stainless steel pan.

Optional thermal printer supports measurement record output where printed documentation is required.

Optional OIML E2 control weight is used for routine checks and documented analytical balance control procedures.
RHONE series — model table
| Model | SKU | Maximum capacity | Readability | Dual-range source value | Calibration | Accuracy class |
|---|---|---|---|---|---|---|
| ANB-RHONE120 | PRO5074 | 120 g | 0.1 mg | 120 g / 0.1 mg | Internal Smart | Class I |
| ANB-RHONE220 | PRO5075 | 220 g | 0.1 mg | 220 g / 1 mg and 220 g / 0.1 mg | Internal Smart | Class I |
| ANB-RHONE320 | PRO5076 | 320 g | 0.1 mg | 320 g / 1 mg and 320 g / 0.1 mg | Internal Smart | Class I |
| ANB-RHONE400 | PRO5073 | 400 g | 0.1 mg | Source row indicates 420 g / 1 mg; confirm exact dual-range configuration | Internal Smart | Class I |
Model availability, SKU, dual-range configuration, accessories, certificates and final delivery scope are confirmed in the official quotation.
TECHNICAL SPECIFICATIONS — RHONE ANALYTICAL BALANCES
| Product series | ANB-RHONE analytical balances |
| Models | ANB-RHONE120 / ANB-RHONE220 / ANB-RHONE320 / ANB-RHONE400 |
| Balance type | Analytical laboratory balance with internal smart calibration and colour touch screen |
| Maximum capacities | 120 / 220 / 320 / 400 g |
| Readability | 0.1 mg |
| Accuracy class | Class I |
| Resolution | 2,200,000 divisions |
| USP minimum sample weight | 400 mg (k = 2, U = 0.1%) |
| Repeatability | ±0.2 mg |
| Reproducibility | 0.0002 g |
| Linearity | ±0.0003 g |
| Eccentric loading at 1/3 Max | 0.500 mg |
| Stabilization time | ≤ 3 sec |
| Sensor | Electromagnetic monoblock force compensation |
| Calibration | Fully automatic internal smart calibration |
| Operating temperature | 10–30 °C |
| Relative humidity | 20–85% RH |
| Power supply | 110–230 V, 50–60 Hz by adaptor |
| Pan size | ø90 mm stainless steel |
| Display | True-colour LCD touch screen |
| Interfaces | RS232 / USB |
| Windshield dimensions | 175 × 175 × 230 mm |
| Measuring chamber | 170 × 160 × 205 mm |
| Housing dimensions | 230 × 310 × 330 mm |
| GW / NW | 7.5 / 5.5 kg |
| Heating time | 8 h |
Final weighing performance depends on installation quality, environmental stability, correct levelling, warm-up time, calibration routine, vibration control, sample handling and the selected control-weight procedure. Final model, SKU, accessories, certificates and documentation are confirmed in the official quotation.
OPTIONAL ACCESSORIES AND CALIBRATION / CONTROL WEIGHTS
Printer, hydrostatic set and OIML E2 control-weight configuration
Because RHONE analytical balances use fully automatic internal smart calibration, the external weight is typically selected for routine control checks, documented verification points and laboratory SOP procedures. The source specification recommends a 200 g OIML E2 calibration / control weight; the final nominal mass, E2 certificate, control frequency and acceptance limits should be defined according to the selected RHONE model and quality system.
OIML E2 control weights
Recommended for analytical-balance control routines, audit support and documented verification points where E2 class weights are required.

Optional thermal printer
Supports printed measurement records where laboratory procedures require direct printout of weighing results.
Configuration logic
- Define the expected weighing range and routine minimum sample mass.
- Confirm whether dual-range operation is needed for the selected model.
- Select the control-weight nominal mass close to the SOP verification point.
- Confirm E2 certificates, printer, software and hydrostatic set before ordering.
Ordering note: optional accessories are not automatically included in the standard RHONE delivery. Printer, hydrostatic set, software, communication accessories, E2 weights, certificates and documentation requirements should be confirmed before the final quotation.
Standard delivery, options and data output
Typical standard delivery
Typical RHONE delivery includes the selected balance model, dust cover, adaptor and instruction manual. Final delivery content depends on order confirmation.
Available options
Optional configuration may include thermal printer, hydrostatic set, communication software, PC data workflow accessories and OIML E2 calibration / control weights.
USB / RS232 workflow
The USB and RS232 ports can support compatible peripheral equipment. PC data collection, cursor output to Excel or Word and printer workflows should be confirmed before quotation.
WEIGHING CATALOGUE
Compare analytical balances, precision balances and weighing accessories
Use the weighing catalogue to compare RHONE analytical balances with other analytical, milligram and precision balances, calibration weights and weighing accessories.
COLO.SCIENCE KNOWLEDGE
Selection support for analytical balances and calibration weights
COLO.Science supports complete weighing configurations: balance selection, control-weight planning, E2 certificates, printer workflows, software options and documented weighing procedures for laboratory users.
Applications and operational value
Analytical laboratory weighing
RHONE analytical balances support 0.1 mg weighing for laboratory samples, reagents, reference materials and routine analytical workflows.
Internal calibration workflow
Fully automatic internal smart calibration helps maintain weighing stability when temperature, time or operating conditions require adjustment.
QC and documented routines
USB/RS232 communication, optional printer and optional software support documented QC, sample preparation and laboratory data workflows.
Advanced weighing modes
Percent weighing, check weighing, target weighing, animal weighing, density workflows and parts counting extend the RHONE series beyond standard mass measurement.
How to select the appropriate RHONE configuration
When selecting a RHONE analytical balance, start with the expected weighing range, typical sample mass, tare vessel mass and routine minimum sample weight. The 120 g, 220 g, 320 g and 400 g models cover different capacity requirements while preserving 0.1 mg readability.
For documented laboratory operation, also define the internal calibration routine, E2 control-weight procedure, printer or PC data-output needs, software expectations, hydrostatic density requirements and certificate requirements. COLO.Science can help confirm the RHONE model, accessories and documentation package before quotation.
RHONE analytical balances for 0.1 mg internal-calibration weighing
RHONE analytical balances are suitable when laboratories need stable 0.1 mg weighing with a modern touch-screen interface, internal smart calibration and protection from air-flow influence. The three-sided glass windshield, electromagnetic monoblock force compensation and real-time temperature compensation support repeatable weighing in routine analytical environments.
In practical use, RHONE performance depends on correct installation, stable temperature, suitable bench conditions, proper levelling, warm-up time and an appropriate E2 control-weight procedure. Optional printer, software and hydrostatic accessories can be added according to laboratory method and documentation requirements.
Configuration notice
RHONE analytical balances may be supplied with different accessory sets depending on the selected model, printer, hydrostatic set, software, communication accessories, E2 control weights, certificates and documentation requirements. The official quotation defines the final delivery scope, including confirmed SKU and accessory configuration. Website content is intended for general product presentation and may not represent the exact delivered configuration. Specifications may change without notice.


