K26400 Constant Temperature Hydrometer Bath


Features and Benefits
• Holds 12 hydrometer cylinders

• Can be used for Reid Vapor Pressure immersion type cylinders

• Conforms to ASTM D323, D1298, D6074, D6158 and related specifications


K26400 Constant Temperature Hydrometer Bath
A versatile constant temperature bath designed for density/gravity determinations of petroleum products at temperatures of up to 195F (90C), and also for Reid Vapor Pressure determinations using immersion bombs. Microprocessor PID control provides quick temperature stabilization without overshoot and the unit is protected by an overtemperature control circuit that interrupts power should bath temperature exceed a programmed cut-off point. Dual LED displays provide actual and setpoint temperature values in C/F. Communications software (RS232, etc.), ramp-to-set and other enhanced features are available as extra cost options. Contact your Koehler representative for information.

Also available–Special bath to accommodate both ASTM D323 (Vapor Pressure of Petroleum Products–Reid Method) and D942 (Oxidation Stability of Lubricating Greases by the Oxygen Bomb Method), as well as D525 (Oxidation Stability of Gasoline–Induction Method). Please contact a Koehler Customer Service representative for additional information.

Capacity: twelve (12) hydrometer cylinders (without base)
or Reid Vapor Pressure one-opening type bombs
Temperature Range: ambient to 250F (121C)
Temperature Control Stability: 0.2F (0.17C)
Heater Range: 0-2500W
Bath Medium: 19 gal (71.9L) water

Electrical Requirements
115V 50/60Hz, Single Phase, 22A
230V 50/60Hz, Single Phase, 11A

Dimensions lxwxh,in.(cm)
30x14x28 (76x36x71)
Net Weight: 64 Lbs (29.0kg)

Shipping Information
Shipping Weight: 118 lbs (53.5kg)
Dimensions: 11.4 Cu. ft.

Ordering Information



Product Description

Electrical Requirements


Constant Temperature Hydrometer Bath

115V, 50/60Hz


Constant Temperature Hydrometer Bath

230V, 50/60Hz




Product Description


Hydrometer Cylinder
Borosilicate glass, 15.5"lx2"dia. with 2.5" lip


ASTM 61F Thermometer
Range: 90 to 260F


ASTM 61C Thermometer
Range: 32 to 127C