A PORTABLE L A B R A C K
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RECORDER
MODEL
LR3002
Just ONE of α COMPLETE LINE of PORTABLE SYSTEMS f r o m PENN-CHEM including: Portable Vacuum Assembly Carriers Lab C a r t s All Purpose Carriers Portable Lab Racks Portable Towers Cantilever Carriers Glassware Carriers
^HR-96-T
$895
0.05-2 IN/SEC Time Base 0.25% ACCURACY
Zener Reference Voltages
10 IN/SEC Pen Speed
Electric Pen Lift
1 MV/IN- 10 V/IN Sensitivity
HR96 W i t h o u t Time Base,Zener Reference Supply and Pen Lift $725
LITERATURE AVAILABLE UPON REQUEST
houston
instrument
corporation 4950 Terminal Avenue/Bellaire 101, Texas MOhawk 7-/403/Cable : HOINCO
These hardworking carriers every laboratory operation Vacuum Pumps & Accessories Column Chromatographic Equipment Filtration Equipment, etc.
Distillation Columns & Accessories Gas Analysis Apparatus Reaction Set-ups
Consult your local lab Supply descriptive literature or Write
Penn- Chem
TWX 713-571-2063
Circle No. 1B1 on Readers' Service Card
put virtually ON WHEELS
dealer for Dept. D-Ï
Corporatif
232-238 NORTH MARSHALL STREET, LANCASTER, PENNA. Circle Να. 158 on Readers' Service Card
COMPACT
Low Flow
PUMP
Infinitely Variable Throughout Range Capacity 1.5 to 900 ML/hr. As u s e d in
• infusion • chromofography • sampling • metering No Corrosion No Contamination Complete with motorandspeed control. Model AL-2-E,1.5to 120 ML/hr. Model AL-4-E, 10 to 900 ML/hr.
Front plate, eccentrically mounted, tilts as shaft rotates and compresses tubing forcing liquid around loop.
Sigmamotor AL-E pumps provide precise volume con trol by means of speed of shaft rotation. Speed is varied by a solid state converter operating on regular 115 volt A.C. line. Priced $260 & $275.
1. Flow rate can be recorded and repeated exactly.
SPEED i/a propipeftes used in one hand, technique easily mastered
SIMPLICITY i/a propipettes have no moving parts, hold liquid until released, accurate to 0.01 cc, fit all laboratory pipettes
SAFETY i/a propipeftes eliminate unpleasant, dangerous mouth pipetting AVAILABLE IN FIVE COLORS FOR LABORATORY CODING black, red, green, yellow, blue IN STOCK AT YOUR LABORATORY DEALER
2. Equipment is lightweight, 10 lbs., and portable. 3. Set-up and calibration is quick and easy.
SIGMAMOTOR INC. 4 7 NORTH MAIN STREET ·
MIDDLEPORT, NEW YORK
Circle No. 82 on Readers' Service Card
Write for additional
sent on approval
information
INSTRUMENTATION
ASSOCIATES,
17 West 60th Street, New York 2 3 , N.Y
INC.
Circle 5 - 0 8 4 0
Circle No. 21 on Readers' Service Card
VOL. 36, NO. 1, JANUARY 1964 .
137 A
