CDI Torque MULTITEST Government - Manual (Page 64)

4-16
Using the MULTITEST Toque Calbration System
Torque-Angle Algorithm
In addition to MULTITEST series torque transducers, the
MULTITEST Indicator accepts input from common bi-directional
incremental rotary encoders. The Indicator features a special
Torque-Angle measurement mode where a clamping torque is
first applied and measured, then at torque preset coincidence,
(when the input torque matches the SET LOW limit), the
Indicator automatically switches to measuring angle in degrees
of rotation.
The operator continues to rotate the fastener until angle preset
coincidence (angle matches the SET HIGH limit). With this, the
specified torque and angle parameters are accomplished in one
wrenching operation.
For additional information on setting up angle encoders,
programming a particular angle and measurement modes, refer
to Chapter 3—Set Up and Programming in this manual.
1. Press MODE to select ANGLE.
— The LED display reads:
0
— The LCD angle display is blank at the lower left, as
shown in Figure 4-6.
2. Install the angle encoder and torque transducer between
the fastener and an appropriate wrench or breaker bar.
3. With the encoder reference arm, strap, clamp or magnet
fixed to the work, rotate fastener while monitoring torque
on the LED display. At torque preset coincidence, (when
the torque measurement matches the SET LOW torque
limit) the Indicator sounds a momentary tone and initiates
display of degrees of rotation on the LCD.
4. Continue rotating the fastener until angle preset
coincidence (when the angle measurement matches the
SET HIGH angle limit). The Indicator sounds a pulsating
tone. The LED display holds the peak torque applied
and reads:
A+torque (angle plus torque)
5. Press MANUAL CLEAR to zero the torque and angle
displays.