4-Channel Transducer Amplifier Transbridge (TBM4M) is a four-channel analog transducer manifold, specifically designed to amplify output voltage signals from pressure, force, displacement, and temperature transducers as well as a wide variety of other signal sources. Analog output signals are available from each channel for input to a data acquisition system for digital signal processing in a computer. Each channel contains a regulated 10-volt power supply (+5 and -5 volts with respect to signal ground) to provide DC power to transducers, and a precision differential amplifier with selectable voltage amplification and variable position adjustment control. Transducers can be connected to Transbridge via any of the 8-pin connectors on the front panel. Four spare 8-pin DIN plugs are provided with each instrument to allow you to rewire cables of other manufacturers’ transducers and connect them to Transbridge. Each Transbridge channel may be used in either Full Bridge or the Half Bridge mode independently. For transducer types other than resistive bridges, such as active transistor circuits, magnetic, photocell or piezoelectric devices, the instrument’s differential amplifiers may still be used effectively for signal amplification in differential (full bridge) and single-ended (half bridge) modes. SYS-TBM4M Transbridge Transducer Amplifier Specify line voltage OPTIONAL ACCESSORIES 13024 Single Rack Mount Kit 13025 Dual Rack Mount Kit 500184 BNC-to-BNC cable, 10 ft 3161 8-pin DIN plug 3718 Package of 4, 8-pin DIN (startup kit) $ 2,085 $ $ 114 114 $ 31 $ 28 $ 98 AMPLIFIERS, ELECTROMETERS Transducers available separately Dual Microiontophoresis Current Generator Ωmega-Tip-Z ™ Millivolt and megohm meter measures impedance of metal or glass capillary microelectrodes Omega-Tip-Z was created especially for measuring impedance in etched tungsten, platinum-iridium* and steel microelectrodes, as well as electrolyte-filled micropipettes. The meter’s AC impedancemeasuring circuit is unaffected by electrode offset or tip junction potentials. The gold-plated miniature probe lets you conveniently monitor micro-electrode impedance in electrolytes, and an electrode tip cleaning feature lets you remove buildup quickly. Omega-Tip-Z can also measure DC electrode tip potentials up to 2000 millivolts. The instrument operates for hundreds of hours without battery failure. NOTE: Metal microelectrodes which have been precalibrated at 1 kHz should be baselined for use with Omega-Tip-Z. *See Metal Microelectrodes, page 102. SYS-OMEGAZ 711P 5468 Omega-Tip-Z with Probe & Holder Replacement Probe Adapter to connect metal microelectrodes to probe, 2 mm socket to .031 in. receptacle $ The Dual Microiontophoresis Current Generator (Model 260) is an electrically isolated, battery-operated instrument designed for the electro-iontophoresis of dyes, drugs and charged substances from micropipettes. Two identical battery operated current generators are available. In ordinary use, the two current generators are operated in parallel providing two distinct currents; one for preventing substances in the micropipette from outward diffusion (the retain or hold current) and the second for actively ejecting charged material. For pipettes with submicron tips, a hold current may not be necessary if there is little outward diffusion of pipette material. Model 260 is powered by two 9-volt alkaline batteries per side (four, in total); unique circuitry converts the ±9 V to ±100 V without a transformer, yielding an exceedingly quiet output. SYS-260 Dual Microiontophoresis Current Generator $ 2,962 $ 1,253 $ 341 $ OPTIONAL ACCESSORIES 2933 Rack Mount Kit, 51⁄4-in. high 47 114 OPTIONAL ACCESSORIES Z-LITE Fiber Optic Illuminator (115v, 60Hz, beige case) Z-LITE-Z Fiber Optic Illuminator (230v, 80Hz, black case) 500186 Bifurcated Light Guide with lenses Z-LITE-186 Z-Lite Illuminator and bifurcated light guide 341 352 $ 325 $ 534 $ $ ORDER TOLL-FREE: 866-606-1974 (U.S. only) World Precision Instruments • Tel: 941-371-1003 • Fax: 941-377-5428 • E-mail: sales@wpiinc.com • Internet: www.wpiinc.com 77