HT-330 Wide Split Horizontal Chromatographic Column Oven

Overview

The HT-330 Wide Split Horizontal Chromatographic Column Oven is an engineered thermal management solution designed specifically for high-stability, low-drift operation of analytical and preparative HPLC, UHPLC, and GC columns. Unlike integrated ovens or vertical column heaters, its split horizontal architecture enables unobstructed access to column fittings, tubing connections, and in-line components—including injection valves, detectors, and flow cells—without compromising temperature uniformity or thermal response time. The unit operates on precise Peltier-assisted resistive heating (180 W nominal power), maintaining setpoint stability within ±0.2 °C across the full operating range (ambient +5 °C to 80 °C) under steady-state conditions. Its compact footprint (130 × 165 × 70 mm) and lightweight design (4.0 kg) facilitate integration into crowded instrument racks, benchtop LC systems, or mobile analytical platforms. The HT-330 complies with IEC 61010-1 safety standards for laboratory electrical equipment and meets electromagnetic compatibility requirements per EN 61326-1.

Key Features

• Split horizontal configuration with independent top/bottom chamber halves—enables rapid column installation, replacement, or maintenance without disassembling tubing or detector interfaces
• Simultaneous accommodation of up to three 300 mm chromatographic columns (e.g., 4.6 mm × 300 mm, 10 mm × 300 mm, or equivalent packed or capillary formats)
• Precision PID-controlled heating system with dual-sensor feedback loop (sensor redundancy ensures traceable thermal validation)
• Thermally insulated aluminum housing with low-thermal-mass design for <15-minute warm-up to 60 °C from ambient
• Front-panel digital display with intuitive keypad interface; supports °C/°F toggle and user-defined setpoint memory (3 presets)
• Over-temperature protection circuitry compliant with UL 1244-1 and IEC 60730-1 Class B safety protocols

Sample Compatibility & Compliance

The HT-330 supports standard stainless steel, PEEK, and fused-silica HPLC columns, as well as GC metal or glass columns with outer diameters ≤12 mm. Its open-top geometry accommodates columns equipped with Swagelok®-type fittings, Vici Valco™ union adapters, or in-line pressure transducers. No internal airflow or forced convection is used—eliminating vibration-induced baseline noise in sensitive UV-Vis or fluorescence detection. From a regulatory standpoint, the oven’s thermal performance documentation supports IQ/OQ protocols required under ISO/IEC 17025:2017 and GLP environments. While not intrinsically rated for hazardous locations, it is suitable for use in non-classified laboratory zones meeting NFPA 45 and ANSI Z9.5 ventilation guidelines.

Software & Data Management

The HT-330 operates as a standalone analog-controlled device and does not include digital communication interfaces (e.g., RS-232, USB, or Ethernet). However, its analog output signal (0–5 V DC proportional to internal sensor voltage) can be integrated into third-party data acquisition systems (e.g., LabVIEW™, MATLAB®, or chromatography data systems such as Empower™ or Chromeleon™) via optional signal conditioning modules. Temperature logging requires external thermocouple-based recorders calibrated per ASTM E220 or ISO 17025-accredited procedures. Audit trails, electronic signatures, and 21 CFR Part 11 compliance are achieved only when deployed within a validated software ecosystem—not by the oven itself.

Applications

• Method development and transfer requiring strict column temperature control (e.g., USP , EP 2.2.46, and JP 6.04)
• Retention time reproducibility enhancement in gradient elution for pharmaceutical QC testing
• Stabilization of retention behavior for chiral separations where ΔT > 0.5 °C induces enantioselectivity drift
• Long-duration stability studies (≥72 h) under isocratic conditions for regulatory submission batches
• Support of multi-column switching configurations in 2D-LC and heart-cutting setups
• Integration with modular GC systems where column oven space is constrained but thermal consistency remains critical

FAQ

Does the HT-330 support active cooling or refrigeration?
No. The HT-330 is a heating-only column oven. For applications requiring sub-ambient control, consider the HCT-360 or HCT-460 models, which integrate thermoelectric cooling modules.
Can I mount the HT-330 vertically or at an angle?
It is engineered exclusively for horizontal orientation on stable, level surfaces. Vertical mounting compromises heat distribution and may trigger thermal cutoff protection.
Is calibration certificate included with shipment?
A factory calibration report (traceable to NIM China) is provided. Full ISO/IEC 17025 calibration must be performed onsite by an accredited provider prior to first use in regulated environments.
What column fittings are compatible with the split chamber clearance?
Standard 1/16″ and 1/8″ compression fittings, zero-dead-volume unions, and in-line filters up to 25 mm in height fit comfortably within the 70 mm chamber height.
Does the unit meet RoHS or REACH requirements?
Yes. All PCBs, housing materials, and thermal compounds comply with EU Directive 2011/65/EU (RoHS 2) and Regulation (EC) No 1907/2006 (REACH), with full material declarations available upon request.