TORQUETRAK TPM2 FAQ

WARNING: DO NOT USE this TorqueTrak TPM2 instrument as a safety or emergency stop device or in any application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury.

On this and all topics, please see the TorqueTrak TPM2 User’s Guide for detailed instructions.

• A shield or guard is recommended in applications where something or someone could come in contact with the rotating parts of the system.
• Keep adjacent metal a minimum of 2 inches (50 mm) away from stationary and rotating coil boards.
• Make sure the gap between stationary coil and rotating coil boards is 0.60 inch (15 mm), nominally.
• The Rotating Collar must be installed on a smooth, clean area of the shaft.
• Do not mount the rotating collar directly over the strain gage.
• For the rotating collar bolts and nuts, use the supplied thread lubricant and threadlock (Loctite 242) as indicated.
• Install the rotating collar assembly with the ring surface on which the transmitter is mounted, nearest to the stationary ring.
• The stationary interface enclosure (control box) is sealed against splashing water, etc., once the mating connectors/cables are attached.  If sealing of the rotating collar is desired, the protection must be done at the time of installation.
• The stationary interface enclosure requires a user furnished mounting bracket to hold it securely in place.
• The stationary interface enclosure is supplied with a standard 10 ft (3 m) power cable terminated at one end with a rugged metal sealed circular 3 pin connector. The other end is un-terminated and must be connected by the user to a 24 VDC regulated power supply (a range from 10 to 30 VDC is acceptable) with a maximum current of 2 amps and typical operating current of 0.5 amps.

24 VDC regulated power supply.
Range from 10 to 30 VDC is acceptable.
Maximum current of 2 amps and typical operating current of 0.5 amps.

The Sensor Input to the TorqueTrak TPM2 system is typically a torque-pattern strain gage bonded to the shaft. A strain gage is an inherently precise measurement device easily capable of resolving one part in a million or more.  Strain Gage Installation Instructions & Diagram.

Part # M-Coat JA ^[PDF]

1 mixing dispenser (70 g ea.)  A two-part polysulfide liquid polymer compound for environmental protection of strain gage installations.  When fully cured, it forms a rubber-like covering that provides an effective barrier against water and many other fluids. The tough coating also protects installations from mechanical damage.