VOLTAGE 12 D.C TYPE & NUMBER OF HOLDERS 4-place for 12.5ml
This group of preheaters is made for the 12.5 ml tube (sometimes called the "finger" tube). The 12.5 ml Walker Sample Heaters are available in both 12 Volt DC and 115 Volt AC. All parts are cast aluminum to give durability and long life in rugged field conditions. The 12 volt unit draws 4 amperes, and has a three-position switch with Manual-ON, OFF, and Thermoswitch-ON. The internal thermoswitch allows the unit to heat rapidly and then maintains constant temperature. This control system prevents excess heat from vaporizing the moisture which could give a false Sediment and Water reading. For higher temperature requirements (such as high wax contents), use Manual-ON . The 115 Volt unit has a simple ON/OFF switch, and has no thermostat control. Weight is 7.25 pounds.
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