KEM MKC-710M + MKV-710B + ADP-611 Coulometric and Volumetric Karl Fischer Moisture Analyzer System
| Brand | KEM (Kyoto Electronics Manufacturing) |
|---|---|
| Origin | Japan |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Instrument Type | Dual-Mode Karl Fischer Analyzer (Coulometric + Volumetric) |
| Measurement Resolution | 0.1 µg |
| Moisture Range | 1 ppm to 100% H₂O |
| Accuracy | < 0.3% RSD (n = 10) |
| Minimum Dispensing Increment | 1/20,000 |
| Titration Control Precision | 0.1 µg |
| Power Supply | AC 100–240 V, 50/60 Hz |
| Data Storage | Internal memory (500 samples for MKC-710M |
Overview
The KEM MKC-710M + MKV-710B + ADP-611 is a dual-mode, laboratory-grade Karl Fischer moisture analysis system engineered for trace-level water quantification in hygroscopic, thermally sensitive, and low-solubility battery materials. It integrates coulometric titration (MKC-710M) for ultra-trace analysis (1 µg–300 mg H₂O), volumetric titration (MKV-710B) for broader concentration ranges (0.1–500 mg H₂O), and an automated sample drying oven (ADP-611) for controlled thermal release of bound moisture. The system operates on the electrochemical principle of iodine generation (coulometric mode) and stoichiometric iodine consumption (volumetric mode), both adhering strictly to ISO 8539, ASTM E203, and USP <921> standards. Its architecture supports full GLP/GMP compliance through audit-trail-enabled user management, reagent tracking, performance verification logs, and time-stamped data capture—critical for QC laboratories serving lithium-ion battery supply chains.
Key Features
- Modular dual-method platform: Simultaneous or independent operation of coulometric (MKC-710M) and volumetric (MKV-710B) modules via shared MCU-710 control interface.
- Coulometric module (MKC-710M): 8.4-inch color touchscreen with eight-language UI (English, Chinese, Japanese, Korean, Russian, Spanish, German, French); Bluetooth-enabled remote operation for hazardous environment safety; real-time titration curve, drift monitoring, and moisture mass display.
- Volumetric module (MKV-710B): A4-footprint design with 10 mL high-precision burette (±0.015 mL accuracy, ±0.005 mL repeatability); 1/20,000 resolution dispensing mechanism minimizing bubble adhesion; one-touch PRE-TITR./START workflow for operator efficiency.
- Drying oven (ADP-611): Automated magnetic sample boat loading; programmable temperature ramp (50–300 °C); integrated heated transfer line (prevents condensation); dual gas options (N₂ or optional air pump); dual zeolite desiccant cartridges for carrier gas drying.
- Data integrity architecture: Internal storage (500 samples on MKC-710M, 100 on MKV-710B); USB export of raw data and auto-generated PDF reports; RS-232C, USB, and LAN connectivity for LIMS integration and peripheral control (balances, printers, auto-samplers).
Sample Compatibility & Compliance
This system is validated for direct and indirect moisture determination across the full spectrum of lithium battery active materials, electrolytes, and separators per globally recognized industry standards. It meets requirements specified in GB/T 45330-2025 (cathode materials), GB/T 24533-2019 (graphite anodes), GB/T 38887-2020 (spherical graphite), YS/T 1302-2019 (LiFSI salt), SJ/T 11723-2018 (electrolyte solutions), and T/ACCEM 026-2024 (electronic-grade EMC). For insoluble or thermally labile samples—including ceramic-coated separators (T/CPPIA 10-2021), silicon-carbon composites (GB/T 38823-2020), and fluorinated carbonates (HG/T 4790-2014)—the ADP-611 enables quantitative moisture release without decomposition. All measurement protocols support 21 CFR Part 11-compliant electronic signatures when paired with KEM’s optional data management software.
Software & Data Management
The MCU-710 control unit provides embedded method management (120 methods on MKC-710M; 20 on MKV-710B), automatic blank correction, titer calibration, and statistical reporting (mean, SD, RSD, min/max). Each measurement records operator ID, timestamp, reagent lot number, cell type (membrane vs. membrane-free), and environmental conditions. Data exports include CSV for Excel-based trending and PDF reports with embedded titration curves, endpoint detection logic, and GLP metadata. Optional KEM LabManager software extends functionality with multi-instrument fleet monitoring, audit trail review, electronic signature workflows, and automated report distribution to QA/QC databases.
Applications
- Quantification of residual moisture in LiPF₆, LiFSI, and LiDFOB salts per HG/T 4066-2015 and T/CIESC 0041-2022.
- Trace water analysis in carbonate solvents (EC, DMC, EMC, DEC) and additives (VC, FEC, VC-F) per SJ/T 11568-2016 and HG/T 5786-2021.
- Moisture screening of cathode precursors (NCM, NCA, LFP hydroxides) per YS/T 1127-2016 and GB/T 30835-2014.
- Bound water assessment in nanostructured anodes (Si-C, hard carbon, graphene conductive slurries) per GB/T 43114-2023 and T/CGIA 032-2020.
- QC release testing of ceramic-coated separators per T/SGX 002-2018, where sub-10 ppm detection limits are mandated.
FAQ
What distinguishes coulometric from volumetric Karl Fischer titration in this system?
Coulometric mode (MKC-710M) generates iodine electrochemically at the anode—ideal for samples containing ≤100 µg H₂O. Volumetric mode (MKV-710B) delivers standardized iodine solution from a burette—suited for higher water loads (≥0.1 mg) and heterogeneous solids requiring solvent extraction.
Can the ADP-611 drying oven be used with third-party titrators?
No—the ADP-611 is designed exclusively for bidirectional communication with KEM’s MCU-710 controllers. It relies on proprietary command protocols for temperature ramping, boat actuation, and endpoint synchronization.
Is method validation support available for regulatory submissions?
Yes—KEM provides IQ/OQ documentation templates, certified reference material (CRM) test protocols (e.g., sodium tartrate dihydrate), and application notes aligned with ICH Q2(R2) guidelines for analytical procedure validation.
How does the system ensure reagent stability during long-term operation?
The MKC-710M includes solvent exchange unit compatibility (optional), while both modules log reagent batch IDs, volume consumed, and expiration dates. The ADP-611’s dual-zeolite gas dryer ensures consistent carrier gas dryness, preventing false positives from ambient moisture ingress.
What cybersecurity measures are implemented for network-connected units?
Firmware v3.2+ supports TLS 1.2 encryption for LAN data transmission, configurable firewall rules via web interface, and role-based access control (RBAC) with password complexity enforcement and session timeout policies.
