DLAB dTrite-Pro Electronic Burette

Overview

The DLAB dTrite-Pro Electronic Burette is an advanced, motor-driven precision liquid dispensing instrument engineered for quantitative titration in analytical, quality control, and research laboratories. Unlike manual or basic digital burettes, the dTrite-Pro employs a closed-loop stepper motor system coupled with high-resolution optical position sensing to deliver repeatable volumetric delivery across its full range. Its operational principle relies on controlled piston displacement within a calibrated glass or PTFE-lined barrel, ensuring compliance with fundamental gravimetric and volumetric traceability requirements defined in ISO 8655-3 (Piston-operated volumetric apparatus — Part 3: Burettes). Designed for routine acid-base, redox, complexometric, and precipitation titrations, the dTrite-Pro eliminates operator-dependent variability—such as parallax error, inconsistent flow rate, or endpoint overshoot—thereby enhancing measurement reproducibility and supporting GLP-compliant documentation workflows.

Key Features

• Three interchangeable burette modules: 10 mL, 25 mL, and 50 mL nominal capacities, each factory-calibrated and supplied with individual calibration certificates traceable to national standards.
• Volumetric resolution of 0.01 mL (10 µL for 10 mL module; 20 µL for 25 mL and 50 mL modules), enabling precise endpoint detection in low-volume titrations.
• Integrated 4.3-inch capacitive touch display with intuitive icon-based navigation, supporting multilingual UI (English, German, French, Spanish, Chinese).
• Dual operation modes: direct panel control or remote operation via ergonomic handheld controller (included), facilitating ergonomic titration in fume hoods or confined workspaces.
• 0–90° rotatable built-in three-way valve with rapid air purge, reagent reflux, and automatic tip priming functions—reducing bubble formation and improving reagent integrity.
• Dual-window design: transparent borosilicate glass window for general use; amber (brown) glass window option for light-sensitive titrants including iodine, potassium permanganate, silver nitrate, and hydrogen peroxide solutions.
• Standard desiccant drying tube port compatible with common absorbents (e.g., soda lime, calcium chloride, or KOH pellets)—critical for hygroscopic or CO₂-reactive titrants such as sodium hydroxide or ethylenediaminetetraacetic acid (EDTA) solutions.

Sample Compatibility & Compliance

The dTrite-Pro accommodates aqueous, alcoholic, and moderately aggressive organic solvents (e.g., acetone, methanol, acetonitrile) when used with chemically resistant PTFE-coated pistons and valves. All wetted parts comply with USP Class VI biocompatibility standards and are free of leachable heavy metals per ISO 10993-12. The instrument meets electromagnetic compatibility (EMC) requirements per IEC 61326-1 and safety standards per IEC 61010-1 for laboratory electrical equipment. Calibration data adheres to ISO/IEC 17025 principles, and optional audit trail functionality—when paired with the included PC software—supports 21 CFR Part 11 compliance for electronic records and signatures in regulated environments.

Software & Data Management

DLAB provides the free dTrite Control Suite v2.0 for Windows-based PCs, enabling full remote configuration, method storage, real-time volume logging, and CSV export of titration logs—including timestamp, operator ID, volume dispensed, and manual/automatic mode flag. The software supports user-level access control (administrator/operator), automatic backup of method files, and integration-ready ASCII command protocol (RS-232/USB virtual COM) for LIMS or ELN systems. Audit trail records include date/time stamps, parameter changes, and execution events—fully compliant with ALCOA+ data integrity principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• Standardization of titrants (e.g., HCl, NaOH, KMnO₄, EDTA) per ASTM E200 and ISO 6497 protocols.
• Pharmaceutical assay validation and content uniformity testing per USP and .
• Environmental water analysis (COD, alkalinity, chloride) per APHA Standard Methods 2320B and 2540D.
• Food and beverage acidity titration (e.g., titratable acidity in wine, dairy, fruit juices) per AOAC 947.05 and ISO 750.
• Academic teaching labs requiring robust, student-safe titration platforms with built-in error prevention logic (e.g., overfill lockout, dry-run detection).

FAQ

Is the dTrite-Pro compatible with non-aqueous titrations such as Karl Fischer or perchloric acid in glacial acetic acid?
Yes—the 25 mL and 50 mL modules support optional chemically inert PTFE-sealed pistons and valves rated for use with anhydrous solvents. Users must verify compatibility with specific reagents and install appropriate drying tubes.
Can calibration data be exported for internal QA review or external accreditation audits?
Yes—calibration reports (including linearity, repeatability, and temperature correction factors) are exportable in PDF and XML formats directly from the instrument or via the dTrite Control Suite.
Does the device support programmable multi-step titration sequences?
Not natively—the dTrite-Pro executes single-step volume delivery per command. However, sequence logic can be implemented externally using the ASCII command interface and third-party scripting tools.
What is the recommended recalibration interval under GLP conditions?
DLAB recommends recalibration every 6 months or after 500 operating hours, whichever occurs first—consistent with ISO/IEC 17025 Clause 6.4.6 and EURACHEM/CITAC guidance on calibration frequency.
Is firmware update capability available over USB or network connection?
Firmware updates are performed via USB flash drive using signed binary packages distributed through DLAB’s authorized service portal—ensuring version control and cryptographic integrity verification.