Humboldt H-4239A Hydrometer Waterbath - Manual (Page 3)

Humboldt Hydrometer Water Bath
The Humboldt Hydrometer Water Bath is designed to provide a 68°F (20°C)
ambient temperature throughout the unit by using a microprocessor-based
temperature control. The H-4239A water bath is fully-insulated and includes a
circulating pump, which ensures a constant water temperature throughout bath.
The H-4239A Water bath provides:
• fast & effortless auto-tuning of temperatures;
• simultaneously shows the set point and process temperature on its
dual-digital display
• smoothly handles critical temperature processes with ramp-to-setpoint;
• processes and equipment are protected by set point range limiting;
• percent power limit protects components from stress;
• rapid cycling provides fast system response;
• operator lockout guards against unwanted changes, and
• all exposed parts are stainless steel, and the front panel is water and
corrosion resistant.
Models covered in this manual include:
Hydrometer Jar Water Bath, 110V 50/60Hz— H-4239A
Hydrometer Jar Water Bath, 220V 50/60Hz— H-4239A.4F
Microprocessor-based temperature control for precise temperature control
throughout the range. Includes a circulating pump, ensuring constant water
temperature, and, a stainless steel shelf, which stands 2" (51mm) above the
bottom of the unit for free circulation of water above and below test samples.
Tank Volume: 20.5 gallons (77.6 Liters)
Dimensions: ID: 37"L x 8"W x 16"D (940 x 203 x406 mm)
Overall dimensions: 48"L x 11"W x 19"D (1220 x 280 x483 mm)
Meets ASTM D422; AASHTO T88. Shipping wt. 47 lbs. (21.4kg)