Snap-On 5000-3 - Manual (Page 54)

CALIBRATION CHAPTER 5
22. All readings show minus sign (-). Press F1 twice to return to measurement mode.
SURETEST Base Unit Calibration
WARNING:
Improper calibration can result in torque measurement errors. Follow these
procedures precisely. If an error is made in the procedure, turn the SURETEST off
and begin again. Users are responsible for the results of their calibration.
Equipment
• Laboratory grade millivolt meter for calibration measurements capable of resolving 1/100
millivolts.
• Calibration fixture as shown in Figure 5-2.
Figure 5-2. Calibration fixture
Procedure
1. With the power off, plug the calibration fixture into the TRANSDUCER INPUT
connector at the back of the SURETEST Base Unit.
2. Turn the power on. After initialization, the LCD display reads:
No Transducer Connected
3. Press Soft Key Setup (F3) to get to Setup Menu.
Use Down (
↓) Cursor key to scroll down to Calibration Item.
Press ENTER (
↵). The display reads:
5-11