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Benchtop Total Organic Carbon Analyzer

Product Number：

HM-DT1

Product Difference：

Benchtop laboratory TOC analyzer operating on the differential conductivity method with 185 nm and 254 nm dual-wavelength UV photochemical oxidation. Features an embedded Android 10 system with a 7-inch color touchscreen, automatic baseline correction, three-level GLP/GMP user permission management, complete audit trails, and integrated thermal printing for high-purity pharmaceutical water and ultrapure laboratory testing.

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Product Details

HM Instruments total organic carbon analyzer featuring HM-DT1 benchtop unit and HM-DT2 online monitoring unit for high-purity water systems

Nine core advantages of TOC analyzer including Android system 7-inch touch screen three detection modes and audit trail

Four primary application fields for TOC analyzer across pharmaceutical microelectronics power generation and research laboratories

Differential conductivity method and photochemical oxidation principle for HM-DT1 and computer port cluster control for HM-DT2

Android 10 operating system with 7-inch color touchscreen showing real-time TOC testing interface and calibration curve

Differential conductivity detection system with automatic temperature compensation and real-time baseline correction

Three major detection modes supporting offline single-test online continuous and scheduled interval with test duration under 12 minutes

One-touch automated maintenance integrating cleaning calibration and self-diagnosis with over 60 percent operating cost savings

Three-level GLP and GMP user permission management for HM-DT1 and electronic signature audit trail for HM-DT2

Built-in high-speed thermal printer with Wi-Fi LIMS cloud upload and multi-format USB data export

Comprehensive regulatory standards compliance including JB/T 20178-2017 ChP 2025 USP 643 EP 2.2.44 and 21 CFR Part 11

Computer port expansion and configurable data storage cycle for HM-DT2 online TOC analyzer multi-unit control

Industrial-grade waterproof and dustproof design with UV observation window for HM-DT2 online process TOC analyzer

Comprehensive technical parameters and instrument specifications table for HM-DT1 offline benchtop TOC analyzer

Complete technical specifications and instrument parameters table for HM-DT2 online process TOC analyzer

Shandong Hengmei Electronic Technology Co Ltd corporate headquarters team and instrument manufacturing facility

Research laboratory facilities and quality testing center for water quality and analytical instrumentation manufacturing

Product Overview

The HM Instruments HM-DT1 Benchtop Total Organic Carbon Analyzer is a high-precision analytical instrument engineered specifically for total organic carbon (TOC) quantification in pharmaceutical water systems, microelectronics ultrapure water, and analytical laboratory testing. Built on the differential conductivity detection principle combined with photochemical oxidation technology, the instrument irradiates water samples with specific ultraviolet wavelengths to convert organic carbon molecules thoroughly into carbonic acid, inducing measurable conductivity shifts that correlate directly to TOC concentration.

Equipped with an advanced dual-wavelength UV lamp (185 nm and 254 nm), the HM-DT1 achieves complete organic mineralization with oxidation efficiency exceeding 99%. An intelligent embedded Android 10 platform coupled with a 7-inch color capacitive touchscreen delivers seamless workflow execution, automatic baseline correction, dynamic background subtraction, and comprehensive data integrity compliant with international pharmacopoeias and GLP/GMP regulations.

Key Features

Dual-Wavelength UV Photochemical Oxidation: Employs 185 nm and 254 nm ultraviolet radiation to achieve thorough organic mineralization with oxidation efficiency >99%, eliminating the need for chemical oxidants and carrier gases.
Differential Conductivity Detection: Proprietary differential conductivity sensor system provides automatic temperature compensation (1-70°C), real-time baseline correction, and background subtraction, effectively eliminating inorganic carbon (IC) and ionic interference.
High Sensitivity & Wide Range: Covers a measuring range of 0.001 to 1.600 mg/L (1 to 1600 ppb) with a detection limit ≤0.001 mg/L, relative error within ±5% or ±0.005 mg/L, and repeatability RSD ≤2.0%.
Android 10 Embedded Touchscreen Platform: Features an intuitive 7-inch full-color capacitive touchscreen interface for streamlined instrument control, visual calibration curves (R² ≥0.999), and diagnostic status reporting.
Flexible Detection Modes: Supports offline single-test, online continuous monitoring, and scheduled interval sampling, completing individual testing cycles in under 12 minutes.
GLP/GMP Data Integrity & Audit Trail: Enforces three-tier user access control (Administrator, Operator, Observer) with complete chronological audit trail logging compliant with FDA 21 CFR Part 11 requirements.
Comprehensive Connectivity & Printing: Integrated high-speed thermal report printer, Wi-Fi (2.4G/5G) for enterprise LIMS synchronization, Gigabit Ethernet (RJ45), and USB Host supporting PDF, CSV, and Excel report export.
Low Total Cost of Ownership: Long-life UV lamp (≥8,000 h) and consumable-free permanent quartz reactor reduce average annual operational expenses by more than 60% compared to catalytic combustion analyzers.

Applications

The HM-DT1 is applied across high-purity water systems requiring continuous quality assurance and regulatory traceability:

Pharmaceutical Industry: Continuous quality monitoring and batch release testing of purified water (PW) and Water for Injection (WFI) loops, compliant with ChP 2025, USP <643>, and EP 2.2.44.
Microelectronics & Semiconductor Manufacturing: Sub-ppb ultrapure water (UPW) loop monitoring for wafer cleaning and rinse bath purity control.
Power Generation & Heavy Industry: Continuous TOC control of nuclear power primary/secondary loops and ultra-high-pressure boiler feedwater to prevent organic acid turbine corrosion.
Analytical & Research Laboratories: Routine water quality verification, environmental baseline studies, and high-purity solvent blank screening.

Technical Specifications

Parameter	Specification
Analytical Principle	Differential conductivity method with UV photochemical oxidation
UV Oxidation Source	Dual-wavelength ultraviolet lamp (185 nm & 254 nm)
Measuring Range	0.001 ~ 1.600 mg/L (1 ~ 1600 ppb)
Detection Limit	≤ 0.001 mg/L
Relative Error (RE)	±5% or ±0.005 mg/L (whichever is greater; 0.01~1.0 mg/L standard)
Repeatability (RSD)	≤ 2.0% (0.1 mg/L standard solution)
Linearity & Calibration	Within 0 ~ 1.6 mg/L range, R² ≥ 0.999
Response Time	< 12 min (from sample introduction to stable reading)
Sample Temperature Adaptability	1 ~ 70 °C
Internal Data Storage	≥ 100,000 complete test records and curves with audit trail
User Access Control	Three-level user permission management (Administrator, Operator, Observer)
Core Component Lifespan	UV lamp ≥ 8,000 h; permanent quartz reactor (no consumables)
Data Interface & Connectivity	Built-in thermal printer, Wi-Fi (2.4G/5G), RJ45 Gigabit Ethernet, USB Host
Data Export Formats	PDF, CSV, Excel
Operating Environment	10 ~ 40 °C, ≤ 85% RH (non-condensing)
Power Supply	AC 100 ~ 240 V, 50/60 Hz
Power Consumption	Rated power ≤ 50 W, standby power < 10 W
Dimensions	350 mm (L) × 250 mm (W) × 350 mm (H)
Net Weight	Approx. 3 kg

Configuration / Accessories

HM Instruments HM-DT1 Benchtop Total Organic Carbon Analyzer main unit
Fluidic inlet and outlet tubing set with quick-connect fittings
Sample testing cups and dedicated sample introduction kit
Standard universal AC power cable (100-240 V)
High-sensitivity thermal printing paper rolls
Product operation manual and factory qualification certificate

Related Models

HM Instruments provides two complementary TOC analyzer models designed for distinct operational workflows:

HM-DT1 (Benchtop Offline Version): Features an integrated 7-inch Android 10 touchscreen, lightweight form factor (3 kg), and comprehensive GLP/GMP audit trails, optimal for quality control laboratories, grab sample testing, and cleaning validation verification.
HM-DT2 (Online Process Monitoring Version): Features a rugged industrial metal enclosure, multi-unit computer port cluster networking, continuous online water monitoring, and standard RS232/RS485/4-20mA telemetry outputs, ideal for automated water treatment distribution loops.

Operation and Support

The HM-DT1 analyzer offers streamlined, intuitive operation:

Sample Connection: Connect the sample line to the front-panel fluidic IN/OUT quick-connect ports or introduce grab samples via the sample cup assembly.
Testing Execution: Select the desired testing mode (Offline single-test, Online continuous, or Scheduled interval) on the 7-inch color touchscreen; the analyzer automatically regulates baseline correction and executes UV photochemical oxidation within 12 minutes.
Reporting and Traceability: Review graphical results on-screen, print signed documentation directly using the integrated thermal printer, or export PDF/CSV data via USB to laboratory LIMS systems.
Routine Maintenance: Utilize the one-touch automated cleaning and self-diagnostic routine to maintain optical and fluidic performance without disassembling internal hardware.