COLO.SCIENCE — 0.1 MG ANALYTICAL LABORATORY WEIGHING
Internal calibration and EMFC weighing performance for controlled laboratory work
SIRET analytical balances are intended for laboratories that require 0.1 mg readability, stable analytical weighing and a compact enclosed weighing chamber. The model range from 100 g to 320 g allows the user to select the balance according to sample mass, container size, tare requirement and laboratory method.
The series uses electromagnetic monoblock force compensation, internal calibration, a backlit LCD display, stainless-steel weighing pan, RS232 standard communication and optional USB / software configuration. The three-sided glass windshield helps reduce air-flow influence during small-mass weighing.
Key characteristics
- Models: ANB-SIRET100, ANB-SIRET120, ANB-SIRET220 and ANB-SIRET320.
- Capacity range: 100 / 120 / 220 / 320 g.
- Readability: 0.1 mg / 0.0001 g.
- Accuracy class: Class I.
- Calibration: internal calibration.
- Sensor: electromagnetic monoblock force compensation.
- Display: backlit LCD display.
- Interface: RS232 standard; USB optional.
- Pan size: Ø80 mm stainless steel standard; Ø90 mm optional.
Suitable for
- Analytical weighing of small samples with 0.1 mg readability.
- Quality control, sample preparation and formulation work.
- Laboratory weighing where internal calibration simplifies routine use.
- Mass comparison, routine control weighing and method verification.
- Optional printer or PC documentation workflows.
- Laboratories that need a compact analytical balance with glass windshield.
SIRET SERIES — INTERNAL CALIBRATION ANALYTICAL BALANCES
SIRET analytical balances for 0.1 mg laboratory weighing
SIRET analytical balances are suitable when a laboratory needs 0.1 mg readability, internal calibration and stable analytical weighing inside a glass windshield chamber. The series provides four capacity choices: 100 g, 120 g, 220 g and 320 g, all with the same 0.1 mg readability and Class I analytical balance positioning.
The SIRET analytical balances page is structured for clear model selection: capacity, readability, resolution divisions, calibration type, display, interface and pan size are shown separately, so the user can compare models without mixing standard features with optional configuration items.
For documented laboratory work, SIRET analytical balances can be combined with optional printer, optional USB interface, optional data software and optional OIML E2 control weights. The exact data workflow, software functions, control-weight values, certificates and delivered configuration should be confirmed in the official quotation.
SIRET analytical balance, E2 control weights and optional printer
SIRET analytical balances cover 100–320 g capacity with 0.1 mg readability, internal calibration, EMFC sensor, backlit LCD and glass windshield.
Optional OIML E2 control weights can be selected for independent routine checks, SOP control points, audit support and documented balance verification.
Optional thermal printer supports paper printout of weighing results when laboratory procedures require direct measurement records.
SIRET series — model variants and catalogue selection parameters
ANB-SIRET100
Capacity: 100 g
Readability: 0.1 mg
Resolution: 1,000,000 divisions
Calibration: Internal
Accuracy class: Class I
Display: Backlit LCD
Interface: RS232 standard; USB optional
ANB-SIRET120
Capacity: 120 g
Readability: 0.1 mg
Resolution: 1,200,000 divisions
Calibration: Internal
Accuracy class: Class I
Display: Backlit LCD
Interface: RS232 standard; USB optional
ANB-SIRET220
Capacity: 220 g
Readability: 0.1 mg
Resolution: 2,200,000 divisions
Calibration: Internal
Accuracy class: Class I
Display: Backlit LCD
Interface: RS232 standard; USB optional
ANB-SIRET320
Capacity: 320 g
Readability: 0.1 mg
Resolution: 3,200,000 divisions
Calibration: Internal
Accuracy class: Class I
Display: Backlit LCD
Interface: RS232 standard; USB optional
Model note: this page uses ANB-SIRET100, ANB-SIRET120, ANB-SIRET220 and ANB-SIRET320. Final model SKU, optional USB interface, printer, software, E2 control weights, certificates and delivered configuration should be confirmed in the official quotation.
TECHNICAL SPECIFICATIONS — SIRET ANALYTICAL BALANCE SERIES
| Product series | SIRET analytical balances |
| Model variants | ANB-SIRET100 / ANB-SIRET120 / ANB-SIRET220 / ANB-SIRET320 |
| Balance type | Analytical balance · Class I |
| Maximum capacities | 100 / 120 / 220 / 320 g |
| Readability | 0.1 mg / 0.0001 g |
| Resolution divisions | 1,000,000 / 1,200,000 / 2,200,000 / 3,200,000 divisions by model |
| 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 seconds |
| Sensor | Electromagnetic monoblock force compensation |
| Calibration | Internal calibration |
| Operating temperature | 10–30 °C |
| Relative humidity | 20–85% RH |
| Power supply | 110–230 V, 50–60 Hz by adapter |
| Display | Backlit LCD display |
| Interface | RS232 standard; USB optional |
| Pan size | Ø80 mm stainless steel standard; Ø90 mm optional |
| Windshield | 175 × 175 × 230 mm (W × D × H) |
| Measuring chamber | 170 × 160 × 205 mm (W × D × H) |
| Housing size | 230 × 310 × 330 mm (W × D × H) |
| G.W. / N.W. | 7.5 / 5.5 kg |
Final weighing performance depends on correct installation, environmental stability, levelling, warm-up routine, internal calibration procedure, vibration control, weighing vessel, sample handling and laboratory control-weight practice. Final model, optional USB, printer, software, control weights, certificates and documentation are confirmed in the official quotation.
STANDARD PACKAGING / STANDARD DELIVERY
Standard SIRET package
Included in standard packaging
- Selected SIRET analytical balance.
- Glass windshield / weighing chamber.
- Power cable / power adapter.
- Instruction manual / user guide.
Optional accessories
- Printer.
- USB interface / USB workflow.
- Data software.
- OIML E2 control weights and certificates.
- Hydrostatic density set.
Operating functions and data workflow
Analytical weighing
0.1 mg readability supports precise weighing of laboratory samples, standards, formulation components and QC check samples.
Counting and percent weighing
Parts counting and percent weighing can support routine laboratory comparison and sample-control workflows where reference mass is appropriate.
Optional data workflow
RS232 is the standard interface. USB interface, data collection software, printer workflow and software-assisted export functions are optional and should be confirmed before quotation.
Density workflow
Density weighing should be treated as a configuration-dependent workflow and confirmed together with the required hydrostatic set and laboratory method.
OPTIONAL ACCESSORIES AND CONTROL WEIGHTS
Optional E2 control weights, printer, USB and software workflow
SIRET analytical balances use internal calibration. Certified OIML E2 control weights may still be selected as optional accessories for independent routine verification, SOP control checks and audit support. Printer, USB and software workflow are optional and should be defined before quotation.

OIML E2 control weights
Recommended for independent routine checks, control points around working mass values, audit support and documented balance verification procedures.
Optional thermal printer
Supports printed measurement records when laboratory procedures require direct printout of weighing results.
Optional communication workflow
- RS232 standard interface.
- USB interface optional.
- Data collection software optional.
- Printer workflow optional.
- Final interface and software functions should be confirmed before ordering.
Ordering note: confirm the selected SIRET model, required pan size, optional USB, printer, software, E2 control-weight values, certificates, hydrostatic set and final documentation package in the official quotation.
WEIGHING CATALOGUE
Compare analytical balances, milligram balances and E2 control weights
Use the weighing catalogue to compare SIRET models with other analytical balances, milligram balances, precision balances, calibration weights and weighing accessories.
COLO.SCIENCE KNOWLEDGE AND SUPPORT
Selection support for analytical balances, internal calibration and E2 control weights
COLO.Science supports complete weighing configurations: model selection, internal calibration routine, control-weight selection, printer workflow, RS232 / optional USB data workflow, software options and documentation requirements for laboratory users.
How to select the appropriate SIRET model
When selecting a SIRET analytical balance, first define the maximum total mass on the pan: sample, container, weighing vessel and any accessories used during the method. ANB-SIRET100 and ANB-SIRET120 are practical for smaller sample work, while ANB-SIRET220 and ANB-SIRET320 provide more capacity for larger containers or higher total load.
The second selection step is documentation and control. Confirm whether RS232 is sufficient or optional USB / software is required, whether printed records are needed, whether E2 control weights and certificates should be supplied, and whether a hydrostatic density set is required for the intended method.
SIRET analytical balances for 0.1 mg weighing with internal calibration
SIRET analytical balances are intended for laboratories that need reliable 0.1 mg weighing, internal calibration, electromagnetic monoblock force compensation and a stable glass windshield chamber. The series covers 100 g, 120 g, 220 g and 320 g models and supports routine analytical weighing, sample preparation, QC control, formulation work, mass comparison and documented laboratory weighing procedures.
In practical use, SIRET performance depends on correct installation, stable temperature, suitable weighing bench, proper levelling, internal calibration routine, vibration control, warm-up time and suitable control-weight practice. Optional E2 control weights, printer, optional USB interface, data software and hydrostatic set can be added according to the laboratory method and documentation requirements.
Configuration notice
SIRET analytical balances may be supplied with different configurations depending on selected model, pan size, optional USB interface, optional data software, printer, E2 control weights, certificates, hydrostatic kit and documentation requirements. This page uses the safe wording “internal calibration” and does not use unconfirmed claims such as dual-range weighing, true-colour touch screen operation, built-in date/time/temperature records or real-time temperature compensation. The official quotation defines the final delivered configuration. Specifications may change without notice.


