Potentiometric Titrator – QualiAPT™-1000

Parent Product

Karl Fischer Titrators and Moisture Analyzers

Standards

Potentiometric Titrator – QualiAPT™-1000

Potentiometric Titrator – QualiAPT™-1000 is a fully automatic potentiometric titrator designed to deliver fast, precise, and repeatable titrations across a wide range of analytical applications.

Using high-resolution potential measurement and automated reagent delivery, the system accurately determines titration endpoints without relying on visual indicators, eliminating operator subjectivity and improving result consistency.

The QualiAPT™-1000 potentiometric titrator integrates a high-precision syringe burette, intelligent endpoint detection, and a large 10-inch capacitive touch screen into a compact, all-in-one platform. It supports multiple titration modes and chemical methods, making it suitable for both routine quality control and advanced analytical laboratories seeking reliable potentiometric titrations with minimal manual intervention.

Potentiometric Titrator – QualiAPT™-1000 Applications

The QualiAPT™-1000 Potentiometric Titrator is ideal for performing a wide variety of titrations, including:

Acid–Base Titrations Determination of acidity, alkalinity, and concentration in chemicals, pharmaceuticals, and industrial samples.
Redox Titrations Analysis of oxidation–reduction reactions commonly used in environmental, metallurgical, and chemical testing.
Complexometric Titrations Measurement of metal ions using chelating agents for water hardness, alloy analysis, and industrial quality control.
Precipitation Titrations Determination of halides and other ions through precipitation reactions.
Non-Aqueous Titrations Accurate titration of weak acids or bases in non-aqueous solvents.
Potentiostatic (Constant pH) Titrations & pH Measurement Continuous pH control and direct pH measurement using calibrated electrodes.
ASTM D664 – Defines the potentiometric titration method for determining acid number in petroleum products and lubricants.

Standards:

ASTM D1067 – Specifies procedures for measuring acidity or alkalinity in water using potentiometric titration.
ASTM D664 – Standard test method for determining the acid number of petroleum products, lubricants, and biodiesels using potentiometric titration to measure acidic constituents and evaluate oil degradation.
ISO 750 – Specifies the potentiometric method for determining chloride content in water and aqueous solutions.
ISO 11285 – Defines the potentiometric titration method for determining sulfuric acid content in industrial chemicals.

Potentiometric Titrator – QualiAPT™-1000 Key Features

Fully Automatic Potentiometric Titrator
- Automates reagent addition, endpoint detection, data calculation, and result storage for consistent titrations.
Multiple Titration Modes
- Supports dynamic titration, endpoint titration, equivalence titration, and manual titration to match different analytical needs.
High-Precision Syringe Burette
- Built-in 10 mL burette with ultra-fine resolution (1/96,000) ensures accurate and repeatable reagent delivery.
Automatic Endpoint Determination
- Eliminates human error by detecting titration endpoints electronically and consistently.
Integrated Cleaning & Reagent Handling
- Automatic cleaning, rinsing, and reagent replenishment reduce cross-contamination and improve workflow efficiency. All pipelines are automatically cleaned and rinsed for many times.
10-Inch Capacitive Touch Screen
- Real-time display of methods, titration curves, and results with intuitive navigation.
Robust Chemical Resistance
- Chemically resistant housing and fluid paths compatible with strong acids, bases, and organic solvents.
Comprehensive Data Management
- Automatic data recording, storage, and printing for traceability, analysis, and regulatory compliance.



Automatic endpoint determination

Real-time display of results	Multiple titration methods

Probe and Burette Calibration	Automatic cleaning and fluid replenishment

Potentiometric Titrator – QualiAPT™-1000 Technical Specifications

Model		QualiAPT™-1000
Instrument Type		Automatic Potentiometric Titrator
Display		10-inch color capacitive touch screen
Measuring Range	Measurement Range (mV)	-2000.0 to +2000.0 mV
	pH Range	-2.00 to 16.00 pH
	Temperature Range	-5 to 120 °C
Resolution		0.1 mV / 0.01 pH / 0.1 °C
Accuracy	Measurement Range (mV)	±0.1 mV, ±0.03% FS
	pH Range	pH ±0.01
	Temperature Range	± 0.1°C, excluding probe error
Titration Repeatability		≤0.2%
Electronic Stability		±0.3 mV / 3 h
Burette Volume		10 mL
Burette Resolution		1 / 96,000
Voltage		110–240 V AC, 50/60 Hz
Operating Environment		10–37 °C, up to 70% RH
Stirrer Speed		10–100% (10% increments)
Shipping Size & Weight		560 × 490 × 410 mm, 11 kg
Weight		11 kg

Standards configuration:

The package contains a Titration Unit, a Support Rod, and two Electrode Holders. It also includes a User Manual provided on a USB drive, a Power Adapter, a 150 mL Sample Beaker, and a 500 mL Titrant Bottle. Additionally, you will find two Dispensing Tips, a set of pH Buffers (4.00, 6.86, 9.18) containing 50 mL each, a Short-circuit Connector, a pH Electrode, a Temperature Probe, and a Stirrer Bead. The kit is completed with a Titrant Bottle Cap Assembly, a Drying Tube, 100 g of Indicating Silica Desiccant, a Power Cable, and a Micron Filter Cartridge.

Electrode Application Guide

Application / Analysis Method	Recommended Electrode Configuration
Acid-Base Titration	pH Composite Electrode or Separate Electrodes
Water Quality: Determination of alkalinity, bicarbonate, and carbonate	pH Composite Electrode or Separate Electrodes
Food Analysis: Determination of total acid (Automatic Potentiometric Titration)	pH Composite Electrode or Separate Electrodes
Fats & Oils: Determination of acid number and acidity (Potentiometric Method)	pH Composite Electrode or Separate Electrodes
Petroleum Products: Determination of acid number (Potentiometric Method)	pH Composite Electrode or Separate Electrodes
Dairy Products: Determination of acidity	pH Composite Electrode or Separate Electrodes
Industrial Cooling Water: Determination of total alkali and phenolphthalein alkalinity	pH Composite Electrode or Separate Electrodes
Industrial Cooling Water: Determination of carbonate alkalinity	pH Composite Electrode or Separate Electrodes
Water Analysis: Standard Test Method for Acidity or Alkalinity	pH Composite Electrode or Separate Electrodes
Volatile Organic Liquids: Determination of acidity (Titration Method)	pH Composite Electrode or Separate Electrodes
Plasticizers: Determination of acid value and acidity	pH Composite Electrode or Separate Electrodes
Industrial Glyoxal: Determination of acidity	pH Composite Electrode or Separate Electrodes
Seawater: Determination of alkalinity (pH Potentiometric Titration)	pH Composite Electrode or Separate Electrodes
Water Quality: Determination of chloride (Silver Nitrate Potentiometric Titration)	Ag (Silver) Composite Electrode or Ag Indicator Electrode + Reference Electrode
Water Quality: Determination of chloride (Mercuric Nitrate Titration)	Mercury Composite Electrode or Mercury Indicator Electrode + Reference Electrode
Silver Ion Titration: Titration with Thiocyanate	Ag (Silver) Composite Electrode or Ag Indicator Electrode + Reference Electrode
Water Quality: Determination of barium (Potentiometric Titration)	Tetraphenylborate Ion Electrode & Double Junction Reference Electrode
Arsenic Content: Ammonium ferrous sulfate titrimetric method	Platinum Electrode + Saturated Calomel Electrode
Groundwater Quality: Determination of sulfide (Iodometric Method)	Platinum Electrode + Saturated Calomel Electrode
Tin Concentrates: Determination of iron content (Cerium Sulfate Titimetric Method)	Platinum Electrode + Saturated Calomel Electrode
Water Quality: Determination of Chemical Oxygen Demand (COD) (Dichromate Method)	Platinum Electrode + Saturated Calomel Electrode
Iron Ores: Determination of total iron content (Titration after Titanium Trichloride Reduction)	Platinum Electrode + Saturated Calomel Electrode
Vitamin C Analysis: Determination by lodometry	Platinum Electrode + Saturated Calomel Electrode
Food Analysis: Determination of calcium	Calcium Ion Selective Electrode & Saturated Calomel Electrode
Water Quality: Determination of calcium (EDTA Titrimetric Method)	Calcium Ion Selective Electrode & Saturated Calomel Electrode
Waste Acid: Determination of Chloride Ion Content	Ag (Silver) Composite Electrode or Ag Indicator Electrode + Reference Electrode
Water Treatment: Determination of chloride	Platinum Electrode + Saturated Calomel Electrode
Oil Analysis: Determination of mercaptan sulfur	Ag-S (Silver-Sulfide) Composite Electrode
Petroleum: Determination of Base Number	pH Composite Electrode or Separate Electrodes
Chemical Analysis: Determination of titanium dioxide content	Platinum Electrode + Saturated Calomel Electrode
Food Analysis: Determination of peroxide value in curry paste	Platinum Electrode + Saturated Calomel Electrode
Food Analysis: Determination of acid value in curry pastes	pH Composite Electrode or Separate Electrodes
Pharmaceuticals: Determination of Calcium Content in Compound Calcium Granules II	Copper Composite Electrode
Edible Oils: Determination of acid value in soybean oil	pH Composite Electrode or Separate Electrodes
Chemical Analysis: Determination of citric acid	Platinum Electrode + Saturated Calomel Electrode
Water Analysis: Determination of chloride / Non-volatile residual chlorine	Platinum Electrode + Saturated Calomel Electrode
Battery Electrolytes: Determination of carbonate content in alkaline electrolytes	pH Composite Electrode or Split Electrodes
Pharmaceuticals: Determination of ferrous gluconate content	Platinum Electrode + Saturated Calomel Electrode
Chemical Reagents: Determination of total chromium content in chrome-manganese reagents	Platinum Electrode + Saturated Calomel Electrode
Metallurgy: Determination of Total Iron Content in High Titanium Slag	Platinum Electrode + Saturated Calomel Electrode
Supplements: Determination of Taurine content	pH Composite Electrode or Split Electrode

Potentiometric Titrator – QualiAPT™-1000

Potentiometric Titrator – QualiAPT™-1000