Corporate Headquarters:
1080 North 11th Street, San Jose, CA 95112 Phone: (408) 292-2214 Fax: (408) 292-2733
www.etorque.com
Dial Torque Analyzer Operation & Calibration Instructions
Rev 1.0
Calibration Procedures
1. The accuracy of the dial torque analyzer should only be verified using an appropriate Calibration Beam and Weight Set
traceable to national standards.
2. Mount the Dial Torque Analyzer on a suitable, level bench surface.
3. Load the analyzer using the Beam and Weight Set to give a torque equivalent to 20% of the full scale range and
compare with indication on the analyzer dial.
Do not use the memory pointer during verification.
4. Check the Dial Analyzer at all major graduations and adjust, if need, as described below until all values are /- 2%
of reading or 1 graduation, whichever is greater.
Adjustments for DM model
The DM model is a delicate instrument with a low torque range,
therefore please contact the Mountz Service & Repair Department for
calibration adjustments.
Adjustments for TCA model
If the TCA model doesn’t indicate the true torque applied within the stated
tolerance, then calibration adjustments are required and performed as
described.
1. Remove back plate from torque analyzer.
2. Perform the required calibration adjustment as follows:
i.
To perform scale adjustment, adjust the main needle position by
loosening the locking screw (A) and turning the adjusting screw (B).
Turn adjusting screw CW to raise reading and CCW to lower reading.
Check the analyzer at full scale.
ii.
To perform linearity adjustment, loosen locking nuts (C) and rotate both Eccentric Spring Pivots (D) in the same direction.
Moving the Spring (E) towards the main spindle will result in higher indicated torque value and vice versa. Once
acceptable linearity is achieved, perform scale adjustment as needed.
3. Re-adjust the zero point as necessary by adjusting the lower stop set screw (F) and lock screw (G) that rests against the
pivot arm so that the indicating needle is positioned in the center of the black area on the dial face.
4. Perform verification procedure to verify adjustments and repeat as necessary.
5. Fasten back plate to analyzer.
800-456-1828
Fax: 408-292-2214
www.etorque.com
ISO 9001
Pointer
Needle
Bearings
Transport screw
(removed on installation)
Adapter (if needed).
Weight
Weight Locking Screw
Spindle Needle
Bearings
DM model
TCA models