Barnant Co., Barrington, Ill.
Low-flow
peristaltic pumps have been designed specifically for OEMs. Masterflex C/L
pumps have been made to combine accurate pumping with low pulsation. They
provide reversible pumping, remote-control capabilities, dual- channel pumping,
and quick tubing changes. They are available in two speed ranges, with and
without speed-control circuits. The 1- to 6-rpm version delivers from 0.0011
to 1.44 ml/min, depending on speed and tubing ID. The 10- to 60-rpm version
delivers from 0.0011 to 14 ml/min. National Broach, Troy, Mich.
Pace Inc., Laurel, Md.
PS 100 incorporates
a large-diameter (89 mm) solder bath that can be used for high-volume,
production- tinning, and prepping applications. Program Master provides a
temperature range from 38deg to 482degC, password-lock features, low- and
high-temperature limits, and an auto/off safety system. Bernard Controls Inc., Houston, Tex.
The SD series
has been designed to meet requirements for compact, direct-mount, quarter-
turn, valve and damper applications. The actuators can operate ball, plug,
or butterfly valves, dampers, vents, and other equipment requiring 90 to
270 degrees of rotation. The actuators are available in weatherproof, NEMA
4, 4x, 6, and special construction designs. They are available with a choice
of three-phase motor, 230/460 V, 60-Hz torque ranges from 530 to 13,300 in.-lb,
or single-phase, 115 V, 60 Hz from 300 to 13,300 in.-lb. ISTA Energy Systems Corp., Roselle, N.J.
A microprocessor,
wall- mounted, BTU meter has been designed to measure flow with a multijet
turbine meter and measure temperature change with platinum sensors. The
calculation also compensates automatically for water density of the energy
system. The meter can be interconnected to any size flowmeter and maintain
a =/- 1.5- percent accuracy with a turn-down ratio of up to 130 to 1. level switches
Monitor Manufacturing Inc., Elburn, Ill.
Valenite Inc., Madison Heights, Mich.
Socket-Drive
Polytops are self- colored, polymer-headed, assembly screws produced using
a method of injection-molding acetal polymer heads onto standard screws in
self-tapping, self-drilling, thread-forming, and machine- screw formats in
commonly used imperial and metric lengths and gauges. Available in more than
20 standard colors, the screws are designed to be more visually attractive
than other metal screws or bolts. They are made in lengths from 1/2 to 4
in. in a range of 4-, 6-, 8-, 10-, and 12-gauge and can be specified in
zinc-plated steel or 304-/306-grade stainless steel. Omega Engineering Inc., Stamford, Conn.
RD4225 series
printers accept up to eight contact closure inputs and print user-defined
messages of up to 40 characters with time and date upon change of an input.
The 40-column thermal printers are powered from an ac or dc power source
between 8 and 30 V. A 110-V ac external transformer is supplied. The printers
measure 3.1 by 5.25 by 6.45 in. and weigh approximately 2.25 lbs. Spectronics Corp., Westbury, N.Y.
The 400-W UV-400
flood lamp has been designed for fluorescent-penetrant and magnetic-particle
inspection, parts-degreasing inspection, and wash-station inspection. It
can be chain- or ceiling-mounted over automated magnetic-particle inspection
systems or above penetrant-inspection booths so operators can inspect even
the largest parts accurately. The unit's housing dimensions are 15 in. long
by 12 in. wide by 12 in. high. It produces a steady-state UV-A (320 to 380
nm) intensity of 6,500 µW/cm2 at its center, measured at 15 in. Mesa Systems Co., Framingham, Mass.
The power coupling
unit (PCU) inductively transfers 24-V dc across an air gap up to 10 mm to
power sensors, switches, relays, magnetic valves, and actuators on rotary
indexing tables or moving equipment. The PCU consists of a transmitter module
(TM) and a receiver module (RM) that are housed in a M30- by 80-mm cylindrical
industrial case. When positioned opposite one another, any TM will immediately
transfer power to any RM. Dwyer Instruments Inc., Michigan City, Ind.
The Model AR24M
self-adjusting electronic rotary actuator maintains a consistent running
time of 150 s, providing automatic positioning of damper blades. It features
wide-range angular rotation of 0 to 95 degrees with easily adjustable end
stops. A V-clamp mounting assembly allows for installation on 3/8- to
3/4-in.-round shafts or 3/8- to 5/8- in.-square shafts. Required power supply
is 24 V, ac or dc. Standard control output signal is 2 to 10 V dc or 4 to
20 mA with a 500-ohm resistor. Feedback signal is 2 to 10 V dc. Clark-Reliance Corp., Strongs-ville, Ohio
The Jerguson
Magnicator II magnetic liquid-level gauge has been designed to measure and
control process-liquid levels on most sizes and types of vessels or tanks.
The gauge has been made for applications in hostile environments, reportedly
manufactured to ASME/ANSI B31.1/B31.2 code. Exergen Corp., Watertown, Mass.
More than 300
noncontact infrared temperature sensors are available. They have reportedly
been produced according to NEMA specifications, including NEMA 4 and 4x.
They are made to be intrinsically safe. Omega Engineering Inc., Stamford, Conn.
RD100A series
100- mm chart recorders are available with one-, two-, three-, or four- pen
continuous-trace or six-channel dot printing. Universal inputs are scalable
and can be programmed for thermocouples, RTDs, or voltage. Units operate
on 100- to 240-V ac or are available with optional 24-V dc. Yokogawa Corp. of America, Newnan, Ga.
UT2400 (four-loop)
and UT2800 (eight-loop) multiloop controllers have been made to offer a solution
where several loops of control coexist. The UT2000 series interfaces to a
touch screen MMI, a small multiline display, PLCs, or a supervisory computer
system. UT2000 accepts thermocouples, RTDs, or DCV signal and executes control
through the universal output system. Other features include a standard RS422A
interface, universal power, up to eight sets of setpoints and control parameters
per control channel, and optional heater break alarms. Plast-O-Matic Valves Inc., Cedar Grove, N.J.
Three-way,
pneumatically actuated, ball valves have been added to this company's True
Blue line. They are made of noncorrosive thermoplastic and are available
with air actuation or optional air- by-spring for normally closed or normally
open operation. All models include manual override capability. Manual ball
valve elements are available in sizes 1/2 to 2 in. Kollmorgen Motion Technologies Group, Radford, Va.
Servostar has
been designed to operate brushless motors to simplify specification,
installation, and operation in single- or multiple-axis motion-control systems.
The amplifier is available with current ratings from 3 to 55 A and feedback
options that include resolver and encoder with Hall effect sensors. Four
power supplies with output power ratings from 0.65 to 22.5 kW are matched
to the amplifier series. Xomox Corp., Cincinnati, Ohio
Tufline three-,
four-, and five-way valves have been designed to replace two or more two-way
valves. The multiport valves are available with screwed, weld, and flanged
ends in bottom-entry, side-entry, and 120-degree side-entry models in a range
of sizes and alloy materials. Omega Engineering Inc., Stamford, Conn.
The handheld
HH40 series can read temperatures from 120deg to 130degC with accuracy up
to =/- 0.015degC and resolution up to 0.01-degree. The thermometers work
with standard Omega 400 series thermistor probes with phone-jack termination.
They include display hold and degC/degF selection from a single front-panel
pushbutton, a 41/2 digital LCD display with a low-battery indicator, and
rate-of-change temperature arrows that flash at different speeds corresponding
to the rate of temperature change. Models are available with or without RS-232C
serial communications. Columbia Research Laboratories Inc., Woodlyn, Pa.
The 2684 series
of integral, full-bridge, full-encapsulated, temperature- compensated strain
sensors has various models to match the materials commonly used in aircraft
manufacturing. The sensors reportedly comply with AGARD advisory report #28,
allowing ample warning time to maintain military and commercial aircraft
in near-perfect flight conditions. Sonics & Materials Inc., Danbury, Conn.
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© 1996 by The American Society of Mechanical Engineers