Signal calibrator Trig-Tek™ 45EMD

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The Trig-Tek™ 45EMD Portable Calibrator is designed to provide precision signals for field calibration of measurement instrumentation. Product Information The Trig-Tek™ 45EMD Portable Calibra- tor is a convenient signal generator and is especially useful for field testing of monitor- ing systems. It has the required outputs to simulate a variety of pickups, temperature pressure, vibration (acceleration, velocity or displace- ment), or it can be used in a laboratory as a precision signal source. The 45EMD hand-held unit generates the required outputs to simulate a variety of transducers, including temperature, pres- sure, and vibration with laboratory accuracy. It is powered by a rechargeable NICAD battery and will operate for up to eight continuous hours on a single charge. The 45EMD’s output frequency is crystal controlled and accurate to 0.05%. Frequency is selectable from 10 to 999.9 Hz with 0.1 Hz resolution or 100 to 9999 Hz with 1.0 Hz resolution. A four-digit thumb switch and a “X1-X10” switch allow “pC” or “mV” level to be set from 0.1 to 999.9 with a 0.1 resolution or from 1 to 9999 with 1 resolution. Selectable output units include “DC,” “Pk,” “Pk-Pk,” or “RMS.” The “mV” output signal is on a BNC; the “pC” output is on a Microdot connector; and the differential (DIFF) pC output is on a three-pin con- nector. A DC offset voltage with selectable polarity can be superimposed on the AC outputs. Additionally, a constant 1 V synchronous Square wave output is provided. A DC offset voltage can also be super-imposed on the AC output signals. This is accomplished by an “X1-OFF-X10” switch to allow settings from 0 to 1.2 and 0 to 12 V with a single turn control.