if'., (Will
One yard of heat and half of it's within ±2° F Lindberg Hevi-Duty divides the cham ber into three heating zones. Boosting input to the end zones balances heat loss so the center—or half the chamber —stays uniform within + 2°F. Precise time-proportioning control automatically holds the temperature within ±2°F of setting. The controller mounts under the furnace—or it can
be used as a remote unit. With three-zone control, you can also b u i l d a t e m p e r a t u r e g r a d i e n t . Just operate one end zone cooler and the other hotter. Using the furnace is easy, too. Swing open the split chamber like a door to place tubes, watch work in progress or speed up cooling. LINDBERG HEVI-DUTY •
• V I S I O N
O P
S O L A
B A S I C
Choose from 12 chamber sizes (2V4" ID χ 24" L to 7" ID χ 36" L) for heating to 1850°F or 2200°F. All operate vertically or horizontally. Want to know more—about this or others in our broad line of precision laboratory heating equipment? See your lab supply dealer or write to 2450 W. Hubbard, Chicago, Illinois 60601.
SIB I N D U S T R I E S
IN C A N A D A : L I N D B E R G H E V I - D U T Y C A N A D A LTD.. 15 P E L H A M A V E N U E , T O R O N T O B. O N T A R I O O T H E R DIVISIONS: A N C H O R ELECTRIC · E N G I N E E R E D C E R A M I C S · HEVI-DUTY ELECTRIC · N E L S O N ELECTRIC · S O L A Circle No. 38 on Readers' Service Card 80 A
·
ANALYTICAL CHEMISTRY
ELECTRIC
See ACS Laboratory Guide for All Products/Sales Office
