The Waters CHM Column Heater Module is a laboratory chromatography column-heating unit designed to provide controlled temperature conditions for HPLC columns and other compatible chromatography components. The photographed unit is clearly identified with the Waters branding and CHM designation on its front panel, along with the voltage-selection and fuse information.

The Waters CHM is part of the Waters Temperature Control System and is designed to be operated with a compatible Waters Temperature Control Module (TCM/TCM II). Waters identifies the CHM by part number WAT038040. The module can accommodate multiple chromatography columns and is intended to provide controlled heating during chromatographic analysis.

Published Waters documentation specifies a 0–150 °C operating capability for the CHM when used with the Temperature Control Module II. The control system is designed so that the temperature set point is maintained above ambient temperature, with Waters specifying that the TCM II cannot be programmed below room temperature and the set point should be at least 5 °C above ambient.

The rear/side portion visible in the photograph includes a voltage-selection switch, power inlet, power switch and two fuse positions. The printed fuse ratings are 115 V – 2.5 A and 220 V – 1.25 A, providing useful identification of the photographed CHM's electrical configuration. The unit shows visible cosmetic wear, dirt, scratches and discoloration from previous laboratory use.

Applications

The Waters CHM Column Heater Module is primarily used in HPLC and liquid chromatography laboratories where maintaining a controlled column temperature is important for chromatographic reproducibility. Temperature-controlled columns can help stabilize retention characteristics and improve consistency for analytical methods involving temperature-sensitive separations.

The CHM is suitable for pharmaceutical analysis, chemical research, biotechnology, environmental testing, food analysis, academic research and quality-control laboratories. Waters documentation indicates that the CHM can house up to four columns and can be independently controlled using the compatible Temperature Control Module II.

Main Features

• Waters CHM Column Heater Module
• Waters part number WAT038040
• Designed for HPLC and chromatography applications
• Temperature capability up to approximately 150 °C
• Compatible with Waters Temperature Control Module / TCM II
• Can accommodate multiple chromatography columns
• Designed for independent temperature control with compatible TCM II
• Front/rear electrical voltage selection
• Dual fuse protection
• Suitable for legacy Waters chromatography systems
• Useful for refurbishment and restoration of older HPLC configurations

Technical Specifications

Waters identifies the WAT038040 as the Column Heater Module and states that it can house up to four columns of up to approximately 30 cm length. The module can be independently controlled using a compatible Temperature Control Module II.

Waters documentation specifies a 0–150 °C CHM temperature capability, while the associated TCM II has restrictions on operation below ambient temperature.

Benefits of Refurbished Laboratory Equipment

Purchasing a refurbished Waters CHM Column Heater Module can provide laboratories with a cost-effective way to restore or expand temperature-controlled chromatography capability. Original Waters modules are particularly useful when maintaining older HPLC systems that were designed around the Waters Temperature Control System.

Refurbished chromatography equipment can be valuable for research laboratories, universities, pharmaceutical facilities, analytical laboratories and service organizations maintaining legacy Waters systems. Proper refurbishment should include inspection of the heating system, electrical components, fuses, temperature sensor, communication connections and heating performance.

Additional Information

The photographed unit is a Waters CHM Column Heater Module, identified by the CHM marking and Waters branding. Waters documentation identifies the CHM as part of its Temperature Control System and assigns WAT038040 as the column heater module part number.

This unit is not a standalone temperature controller. A compatible Waters Temperature Control Module or another supported Waters control arrangement is required for normal temperature-control operation. The exact compatibility should be confirmed before purchase.

The photograph shows visible cosmetic wear, dirt and discoloration. The exact internal heating performance, temperature sensor condition, rear connectors, serial number and included cables cannot be confirmed from the photograph. The voltage selector and fuse ratings should be checked before connecting the equipment to a power source.

• Waters CHM Column Heater Module
• Waters WAT038040 Information
• Waters Temperature Control System Documentation
• Waters Corporation

Refurbished Condition

This is a refurbished Waters CHM Column Heater Module WAT038040. The instrument has been professionally inspected and tested. Reagents, accessories, software and consumables may vary depending on availability.