Posted on April 08, 2014 by promarengine
We are now using Snap-On ATECH3FR250B Electronic 1/2″ TECHANGLE Torque Wrench on our engines. The TECHANGLE wrench is an electronic torque and angle wrench. It is designed to provide basic electronic features, including UNITS CONVERSION, (Nm, ft-lb and in-lb) TRACK, PEAK HOLD, and PRESET functions on a robust, yet ergonomically comfortable, wrench platform. The ANGLE mode utilizes piezo gyroscope technology that requires no mechanical reference. It is priced to compete with mechanical bending beam, dial, preset and adjustable click-type torque wrenches, and angle gauges.
The TECHANGLE wrench emulates a mechanical dial or “click” type wrench or reference-free angle gauge for “turn-of-the-nut” type applications. The display shows the torque or angle specification, (PRESET values) that can be changed immediately using the UP and DOWN pushbuttons. The torque units or angular degrees units of measure are selected by using the UNITS conversion pushbutton.
In torque mode, when load is applied the display automatically switches to TRACK mode, emulating a mechanical dial wrench, so the user can monitor torque or angle in real time. Similar to a click type wrench, at 2% below the preset value, the wrench beeps once and the handle vibrates, alerting the user to stop increasing torque. When load is released the display automatically shows the PEAK torque applied for 10 seconds, flashing on and off, thus emulating a dial wrench with a follow-up pointer.
In angle mode, when load is first sensed, the wrench switches to TRACK mode and accumulates fastener rotation in angular degrees. Reverse motion is ignored to allow ratcheting action in tight work places. When load is released the display automatically shows the PEAK angle and torque applied, alternating, for 10 seconds. This is also useful for keeping an eye on torque applied while in the angle measurement mode. Angle will continue to totalize if load is reapplied before the 10-second period has elapsed. If PRESET alert has occurred or the 10-second PEAK display has elapsed or the ON/RESET key is pressed, the wrench is ready to move to the next fastener and start accumulating from zero again.
Note: when entering the angle measurement mode the wrench must be momentarily held still to establish a zero angle reference in space. The display shows two small bars “- -“ alternating if motion is detected during zero reset.
The wrench turns itself off after sitting idle for two minutes to conserve battery power. The wrench returns to the last PRESET and UNITS settings at power on.
