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Peak air-tool torque is a critical parameter in many quality control operations.  A special "P" Option version of the Model 3370 DC Strain Gage Conditioner / Indicator / Controller, the Model TM3 is a simple, economical benchtop unit for automatic capture, display, and evaluation of the true "real-time" maximium value experienced by a single analog torque signal.  It can be used with all kinds of transducerized air-operated strain gage torque tools—and, as shown in the diagram below, can even be used to test performance of such tools themselves.

Peak-capture mode and reset control are fully automatic.  Thus, after each peak is captured and displayed, the operator need only place the air tool on the next fastener to be tested, and the unit will instantly "auto-reset" for the next measurement.  A factory-set threshold of approximately 15% of full-scale output prevents triggering of the peak-capture function by induced low-level signal noise, when the tool socket is seated on the bolt to be tightened (if you require peak capture within the 15% range, contact the factory).

TM3 specifications are identical to those of the Model 3370 with reference to basic signal-conditioning, digital-indication, and limit-monitoring capabilities.  In addition, a "HELD PEAK" analog output is momentarily available after every peak capture (for about one second) at the TM3's rear I/O connector, for recording by an external instrument or system.

Front-panel limit status indicators (HIGH, LOW, and OK) are latched until auto-reset, as are rear-connector logic outputs, which are available in both true and complement for each limit condition.

For optional battery power (11.5-15 VDC, 500 mA maximum), specify the Model TM3B. Special versions for high-sensitivity semiconductor bridges (up to 100 mV/V) can also be ordered.