N E W PRODUCTS Inst rurn ents
OXYGEN ANALYZER
OXYGEN ANALYZER
Thermox Probe Model One is an oxygen analyzer for inert gas work that features a remote sensor unit that can be mounted through the wall of a chamber to monitor the atmosphere inside without pump and piping. T h e instrument is calibrated from 0.01 ppm O2 u p to air composition. T h e instrument operates by comparing the oxygen partial pressure of the test gas with that of air, using an electrochemical cell. I t can also be used as an in-line analyzer. Thermo-Lab Instruments, Inc. 401 VALVE OPERATORS
New line of hydrostatic valve operators consists of electrically or pneumatically powered instruments incorporating hydrostatic transmission which permits development of maximum torque and thrust at zero output speed. T h e actuators develop torques to 250,000 in.-lb and can actuate gate and rotary valves from 8-in. to 54-in. sizes. They can be quickly and easily mounted directly over the valve stem. Ledeen Go. 402 CALIBRATION BATH
VISCOSITY REGULATOR
CALCULATOR/COMPUTER
Dry-fluidized calibration bath is intended for use in calibrating resistance thermometer bulbs, thermistors, filled systems, and thermocouples. T h e console unit is fully instrumented and may be had with one, two, or more baths. T h e bath utilizes a fluidized bed of aluminum oxide granules and temperature gradient from center to sides and from top to bottom and is rt0.2"F. T h e calibration baths are customized to meet special requirements. McHugh Thermodynamics Corp. 403 VISCOSITY REGULATOR
T h e Covistat is a rotational viscometer with a built-in regulating unit. Sealed into a gas-tight housing, it is explosion-proof and oper88
INDUSTRIAL AND ENGINEERING CHEMISTRY
ates even when completely submerged. T h e instrument keeps viscosity steady by adding solvent when necessary in processes such as coating or spraying. Olkon Corp. 404 PRESSURE TRANSDUCER
Model K-1400 differential pressure transducer can resolve pressure changes to 0.5,~pressure differential in the extremely low pressure range 0 to 0.5 mm Hg, at a line pressure exceeding 1 atm. Frequency response of 500 Hz or better and linearity within &l/zyoare other attractive features. The transducer operates with the standard Kaman oscillator-demodulators or with a light-weight 28-V aerospace package. Kaman Corp. 405 OIL DETECTION SYSTEM
T h e Aqualert oil detection and control system is sensitive to a wide variety of oils in forms ranging from emulsions of 25 ppm to slugs of pure oil. I t makes possible continuous automatic monitoring of condensate streams for trace oil contamination. T h e system is all solidstate and can be readily disassembled for cleaning, though it is selfcleaning under most conditions. Sensitivity, alarm setting, reset, and zero adjustments are provided. Bull and Roberts, Inc. 406 CALCULATOR/COMPUTER
Model 380 programming keyboard is a compact, desk-top unit which provides built-in magnetic tape storage for u p to 640 program steps. Programs on the 380 can be learned directly from the keyboard at the flip of a switch and stored on removable ?;track cartridges for immediate operations or later reuse. Basic arithmetic capability is also available. Wang Laboratories, 407 Inc.
ANEMOMETER
LITERATURE
The Thermo-Anemometer permits lab precision measurement of slowly moving air with a portable unit. I t has fast response and is clearly readable to the nearest fpm a t a glance. T h e sensing element is a heated thermocouple protected by a guard, and the instrument is powered by a self-contained 1.3-V mercury cell. Accuracy is assured at temperatures between 20” and 150°F. Alnor Instrument Co. 408
Testing machines. Bulletin M3 contains detailed engineering and application data on the new five-scale, Model M3 low-range testing machine, which features an internal ratio converter and one-weight pendulum. The models described are powered and handoperated table or floor units, with choice of three daylight openings covering the ranges 0-12.5 lb, 0-25 lb, 0-50 lb, 0-100 lb, and 0-300 lb. Accessory line includes recorders, indicators, and gripping fixtures. W. C. Dillon & Co., Inc. 412
DEWPOINT INSTRUM ENT
Voltage Supply. Engineering note describes the Model 246 high voltage supply which offers O.Ol’% stability, 0.001% line regulation, less than 1 mv rms noise and overload protection with automatic recovery. Complete specifications and price details are given. 413 Keithley Instrument Co.
Type 7300-D Dewpointer is a consistently accurate, portable instrument for the rapid measurement of dewpoint temperature. I t was particularly designed for use with air, nitrogen, oxygen, hydrogen, and carbon monoxide, and for mixtures of these gases. T h e instrument is well suited for lab or production area applications and it can be operated by nontechnical personnel. Alnor Instrument Co. 409 PROCESS REFRACTOMETER
New process analyzer offers instantaneous, sensitive, and reliable measurement of any type of process fluid, even those that are colored or opaque. Process fluids moving at hundreds of gallons per minute through pipelines 2 to 10 in. in diameter can be monitored and alarms or control systems activated. T h e dissolved solids content of such fluids as lubricating oils, waxes, acids, and alcohols can be continuously measured. Anacon Inc. 410 CARBON MONOXIDE DETECTOR
A reusable carbon monoxide detector can be carried on the person or placed in potentially hazardous areas to indicate the presence of CO visually. Special instructions and messages can be custom-imprinted on the rear of the detectors. 411 Devco Engineering Inc.
Polymer Characterization. Revised bulletin describes the methods used to determine the most important physical properties of polymers and to relate these measurements to their constitution. Chapters deal with sample preparation, molecular weight determination, composition and structure determination, and glass transition temperatures. Typical instruments needed and their suppliers are listed. Rohm and Haas Co. 414 Fluidic Systems. An 8-page catalog describes the company’s fluidic systems, components, and accessories. Four new control systems are listed and a multipurpose unit to provide the user with a thorough background in fluidic technology is featured. Proportional amplifiers and digital logic devices are also described. Fluidonics Div., Imperial-Eastman Corp. 415 Direct Digital Control. Bulletin deals with direct digital control of batch and semicontinuous processes. Some of the advantages of computer control of batch processes are given and BATCH, a new software program, is described. The philosophy of multicomputer back-up and illustrations of successful applications are included. Foxboro. 416
Pyrometer. Hand-held integral miniature pyrometer, IMP-33, the first selfcontained disappearing filament pyrometer to combine high accuracy and repeatability with portability at low cost, is discussed in bulletin DF-330. Complete specifications and ordering information for the pyrometer are given along with an actual size photograph. Electro-Nite Co. 417 Moisture/Volatiles Tester. Bulletin M T 68 compares the conventional fivestep oven method for determining the moisture content of organic or inorganic process materials with the twostep method made possible by the new Brabender moisture/volatiles tester. The literature describes accessories and gives equipment specifications. The test method is described in detail. C. W. Brabender Instruments Inc. 418 Control Systems. Brochure 3099 presents data for selection of temperature, pressure, and level supervisory systems for alarming or shutting down equipment or processes if set point is exceeded. Detailed diagrams and photos outline operating principles and typical applications. Details on system selection and ordering information are included. Thomas A. Edison Industries. 419 Thermocouples. Illustrated catalog includes descriptions of the characteristics of various thermocouple alloys, curves of their temperature-mv relationships, and a resistance table of alloy wires. Insulation and protection tube requirements are also covered. Application information for general purpose thermocouple instrumentation is given. The various types of thermocouple available are listed. Alnor Instrument Co. 420 Vibration Analyzers. Three bulletins describe a line of portable, precision vibration measuring instruments designed to detect and analyze vibration in rotating machinery and process equipment. The instruments are battery or line operated and measure amplitudes in increments ranging from lop in. to in. at speeds to 60,000 rpm. Reliance Electric Co. 42 1 VOL. 6 0
NO. 6
JUNE 1968
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