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TFF Series

TFF Series
13Pages

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Torque Sensor Family Manual Sensor Solutions Source Load · Torque · Pressure · Multi-Axis · Calibration · Instruments · Software

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TFF Torque Sensor Family Manual Table of Contents Key Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Shield Usage and Connections . . . . . . . . . . . . . . . . . . . . . 10 . . Maximum Installation Torque. . . . . . . . . . . . . . . . . . . . . . . . . 6 Cable Care and Routing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Further Support Resources. . . . . . . . . . . . . . . . . . . . . . . . . . 13 Sensor Solution Source Load · Torque · Pressure · Multi-Axis · Calibration · Instruments · Software

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TFF Torque Sensor Family Manual The TFF (Torque Flange to Flange) sensor series measures the torque between a stationary or resistive moment or torque. Since the TFF sensor measures a static moment, it does not fully rotate with an applied torque. The TFF series features a through hole design with tapered edges, which helps to center the sensor. The through hole design allows for a shaft (or other rotating items) to pass through the sensor. The updated TFF400 has a built-in overload protection system allowing up to 300% for the 5 to 1,000 in-oz capacities, and 150% for the 100 to 500 in-lb...

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TFF Torque Sensor Family Manual Mechanical Installation The following precautions should be observed to avoid damage to the TFF sensor during installation and usage. • Store in a dry area without fixtures. Sensors with overload protection wire cut gaps, if exposed, should be regularly cleaned to maintain proper deflection path. 1. Do not pull on or carry sensor by cable. Avoid conditions that exceed the sensor’s spec sheet IP rating. 2. Monitor sensor output for effects on zero output during installation to avoid damage. Non-loading surface (cover), do not contact while loading O Active end...

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TFF Torque Sensor Family Manual Mounting and Installation • Refer to the sensor spec sheet for information on proper torque sensor orientation for best performance and to limit cable influence. 1. TFF325 and TFF350 come with dowel pin holes to help with alignment. • Measurements are called out on the sensor spec sheet and have the following tolerances based on the number of decimal points present. DECIMAL FORMAT 2. TFF325 had additional flats that can assist with fixture attachment and sensor placement. • Bolt hole placements are called out in a Bolt Circle Diameter (BCD) which is an...

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TFF Torque Sensor Family Manual Maximum moments and off-axis loading INSTALLATION TORQUE • Note: To avoid damage when applying torque, only constrain the flange attached to the fastener. RECOMMENDED TORQUE (lbf-in) • Torsional stiffness is an indication of how much torque will result in one radian of angular deflection. The torsional stiffness can be found on the sensor’s spec sheet. • An Extraneous how-to-guide can be found at: https://media.futek.com/content/futek/ files/pdf/Extraneous_Load_Factors/How_To_ Calculate_Extraneous_Loads.pdf • Use extraneous load information to determine if...

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TFF Torque Sensor Family Manual Cable Care and Routing • Cable material type and length can be found online in the sensor description page. 1. Avoid stress and movement on cable to avoid damage. 2. Properly secure sensor cable to limit cable movement influence 3. Avoid bending the strain relief. Bends in the cable should not exceed a radius of 10 times the diameter of the sensor cable for dynamic, or moving, applications. When permanently routing a cable in a static installation, the minimal bend radius should not fall below 2-3 times the diameter of the cable. Sensor Solution Source Load ·...

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RECEPTACLE WHITE TFF Torque Sensor Family Manual The TFF torque sensor series utilizes a four-wire bare lead connection, a four-pin Lemo connection or a DB9 with TEDS. Standard A four-wire connections are DR-4S-6 RECEPTACLE +Excitation, –Excitation, +Signal, and C –Signal. The standard coloring code for the above listed connections are Red, Black, Green, and White. Bridge Sensor XXXΩ – Excitation (Black) Note: the Lemo connection is considered D a quick release connection and is slipped out rather than twisted for removal.KEY A right angle exit Lemo connector is available. Note: Connection...

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TFF Torque Sensor Family Manual Sensor DB-9 Assembly MALE DB9 CONNECTOR (SUPPLIED) DB9 Screws Bottom Cover Cover Screws Washer Covers Sensor Solution Source Load · Torque · Pressure · Multi-Axis · Calibration · Instruments · Software

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TFF Torque Sensor Family Manual Shield Usage and Connections • Cable shielding should be grounded on one end, either the sensor side or instrument side to avoid ground loops. • A shield connection listed as floating on a sensor’s spec sheet means the cable shield is not connected on the sensor side and may be connected on the instrument side to ground. Shield Wires • Shield connections are located on the sensor’s spec sheet. Power Supply • A yearly calibration is recommended. But verification and calibration period shall be defined based on application, conditions, endurance and usage. A...

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TFF Torque Sensor Family Manual Troubleshooting When troubleshooting, we recommend that the sensor be removed from any fixtures. In order to confirm that that sensor is operating correctly, we suggest placing the sensor on a firm surface, and to apply a known load. We also recommend using a volt meter with a clean power supply to confirm the sensor is operating correctly. POSSIBLE CAUSE High zero output • Sensor is under preload • Fixtures or bolting stress for causes of pre-load. • Overload shift would not be repairable. • Sensor has been overloaded from too much load, off axis load, or...

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TFF Torque Sensor Family Manual POSSIBLE CAUSE Zero output drift • Unstable power supply, or noisy power supply, to sensor. • Stability of power supply and noise levels. • Internal damage from liquid exposure is not repairable. • Sensor exposed to temperature change. • For temperature changes or unevenly distributed temperature changes. • Recalibration is available for confirmation of sensor performance. • Sensor exposed to pre-load from fixture or mounting. • Possible loose fixtures and bolts • Sensor exposed to liquid or humidity. Creep in output while under load • Load or fixtures are...

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