Analysenwaage (1mg) QPC-Serie

Name: Analysenwaage (1mg) QPC-Serie
Brand: Qualitest North America
Availability: InStock
Rating: 4.84 (256 reviews)

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The QPC-Series 1mg analytical balance gives laboratories 0.001 g readability for food, pharmaceutical, chemical, and metal-fabrication work. It uses an electromagnetic force-compensation sensor known for high sensitivity and long-term stability, which holds accuracy across repeated weighings. Four transparent draft-shield panels enclose a spacious weighing chamber, so operators load samples easily while air currents stay out. The series spans capacities from 100 g to 2,000 g in both external- and internal-calibration models, so a lab can match capacity and calibration method to the task.

Each unit is conditioned for constant temperature and humidity and shielded against static before delivery, which supports stable readings from first use. Built-in modes cover counting, percentage, animal (dynamic) weighing, and density measurement, so one instrument handles routine and specialized jobs. An RS232 interface sends results to a printer, LIMS, or automation system for traceable record-keeping. Fast stabilization and an adjustable background sensitivity let operators tune the response to the sample and the bench environment.

Analysenwaage (1mg) QPC-Serie

Anwendungen

The QPC-Series serves laboratories and production settings where milligram-level mass accuracy matters across a range of industries.

Scientific Research Laboratories: precise mass measurement of reagents, samples, and reaction products for experimental work.
Food Production and Quality Control: ingredient and additive weighing for recipe control and batch-to-batch consistency.
Pharmaceutical and Chemical Work: accurate weighing of components and formulations in line with USP analytical weighing practice.
Metal Fabrication and Materials: mass and density measurement of metal parts, alloys, and small components.
Formulation and Mixing: percentage weighing for ratio-based mixing and formula development.
Dichtebestimmung: Messung der Dichte von Feststoffen, Flüssigkeiten und Pulvern inklusive Masse (nur auslesbar).
Inventory and Parts Counting: counting mode for bulk items of uniform weight to speed stock-taking.
Tier- und dynamische Probenwägung: Stabile Messwerte für lebende oder sich bewegende Proben wie z. B. kleine Labortiere.

Grundsätze

The QPC-Series supports analytical weighing workflows that align with internationally recognized metrology and pharmacopeia requirements.

OIML R 76-1 - Nichtautomatische Wägeinstrumente (definiert die Genauigkeitsklasse I für Analysenwaagen)
OIML R 111 - Gewichte der Klassen E1, E2, F1, F2, M1, M2, M3 (Kalibrierungsgewichtsklassen)
USP Allgemeines Kapitel <41> - Bilanzen
USP Allgemeines Kapitel <1251> – Wägen mit einer Analysenwaage
EURAMET Kalibrierleitfaden cg-18 - Richtlinien zur Kalibrierung nicht-automatischer Wägeinstrumente

Hauptfunktionen

The QPC-Series combines a precision sensor with practical modes and interfaces that suit daily laboratory use.

Electromagnetic Force-Compensation Sensor: resolves mass to 1 mg with high sensitivity and stable long-term performance.
Vierteilige, transparente Zugluftabdeckung: Umschließt eine geräumige Wägekammer, um Luftströmungen zu verhindern und gleichzeitig das Einlegen und Ablesen der Proben zu erleichtern.
Klimatisierung und Antistatik-Konditionierung vor Auslieferung: Jedes Gerät wird hinsichtlich Temperatur, Luftfeuchtigkeit und statischer Aufladung behandelt, damit die Messwerte vom ersten Einsatz an stabil bleiben.
Fast Stabilization: settles and displays results in about 1 to 3 seconds, with adjustable background sensitivity for different bench conditions.
Mehrere Wägemodi: Umfasst Basis-, Zähl-, Prozent-, Tier- (dynamische) und Dichtemessung mit einem einzigen Gerät.
Dichtemessmodus: Bestimmt die Dichte von Feststoffen, Flüssigkeiten und Pulvern sowie die Masse für Materialanalysen.
Animal Weighing Mode: holds a stable reading for live or moving samples that are otherwise hard to weigh.
RS232-Datenausgabe: Gibt einzelne Ergebnisse aus oder sendet kontinuierliche Datenströme in Intervallen von 0.5, 1, 2 oder 3 Sekunden an LIMS- oder Automatisierungssysteme.
External or Internal Calibration: select operator-applied external calibration or motorized internal calibration by model.
Selectable Display Units: reads in grams, ounces, carats, and milligrams to suit different workflows.

Theorie und Methode

The QPC-Series measures mass by electromagnetic force compensation, the method behind every high-resolution analytical balance. A sample placed on the pan pushes the weighing system down, and a position sensor detects that small displacement. The balance then drives current through a coil seated in a magnetic field, and the coil produces an opposing force that returns the pan to its original position. The current needed to hold that position is proportional to the sample's weight, so the electronics convert it directly into a mass reading.

Because the system measures the restoring current rather than the stretch of a spring, it resolves mass to 1 mg and stays linear across the full range. Temperature and humidity conditioning before delivery reduces drift from thermal expansion, while the anti-static treatment limits charge build-up that would otherwise tug on light samples. The sealed draft shield blocks the air currents that add noise at the milligram level.

Calibration ties the reading to a known reference. External-calibration models use a certified test weight that the operator applies, while internal-calibration models carry a motorized weight that the balance applies on command or on a schedule. Both methods correct sensitivity so the displayed value tracks the true mass, which matters most when ambient temperature shifts during a working day.

Analysenwaage (1 mg) QPC-Serie – Technische Daten

Externe Kalibrierungsmodelle

Parameter	QPC100	QPC200	QPC300	QPC500	QPC600	QPC1000	QPC2000
Maximale Kapazität	100 g	200 g	300 g	500 g	600 g	1000 g	2000 g
Kalibrierungsmethode	Extern
Ablesbarkeit	1 mg
Mindestgewicht	1 mg
Wiederholbarkeit *	±1 mg
Linearity *	±2 mg
Stabilisierungszeit	1 Sek. / 3 Sek
Aufwärmzeit	30 – 60 min
Anzeigeeinheiten	g/oz/ct/mg
Pfannengröße	Φ90 mm
Kommunikation	RS232 (USB optional)
Tuning	100–240 V Wechselstrom, 50/60 Hz; Ausgang 9 V 2 A
Geräteabmessungen	310 × 215 × 350 mm
Nettogewicht	5.5 kg

Interne Kalibrierungsmodelle

Parameter	QPC100I	QPC200I	QPC300I	QPC500I	QPC600I	QPC1000I	QPC2000I
Maximale Kapazität	100 g	200 g	300 g	500 g	600 g	1000 g	2000 g
Kalibrierungsmethode	Intern
Ablesbarkeit	1 mg
Mindestgewicht	1 mg
Wiederholbarkeit *	±1 mg
Linearity *	±2 mg
Stabilisierungszeit	1 Sek. / 3 Sek
Aufwärmzeit	30 – 60 min
Anzeigeeinheiten	g/oz/ct/mg
Pfannengröße	Φ90 mm
Kommunikation	RS232 (USB optional)
Tuning	100–240 V Wechselstrom, 50/60 Hz; Ausgang 9 V 2 A
Geräteabmessungen	310 × 215 × 350 mm
Nettogewicht	5.5 kg

Analysenwaage (1mg) QPC-Serie