Checkline TT Series User Manual

Page 3

A load indicator bar alerts the operator how much load has been

applied to the load sensor in relation to the full scale of the sensor.
For clockwise torque the indicator bar moves from right to left.
For counter-clockwise torque the indicator bar moves from left to
right.

Zeroing the Tester
During operation of the TT, it is often necessary to zero the display

so that minor errors do not become part of the measured reading.
Press and release the ZERO key.

Changing the Engineering Units
Depending on the capacity of your model, the following units

may be selected by pressing the UNITS key: N-mm, N-cm, N-m,
gmf-cm, kgf-cm, kg-m, ft-lbf, in-lbf. The TT automatically converts
readings as the new engineering unit is selected.

Changing the Mode
Press the Mode key to choose from the following modes of mea-

sure: Track, Peak, First Peak and Track/Peak

Track Mode
When “Track” appears in the display the TT will indicate live torque

readings in both directions as they are applied. See Figure 3a

Figure 3a: Track

First Peak Mode
When “F-Peak” is selected the TT will show the initial maximum

torque recorded over the test. Once the unit sees a drop in torque,
the First Peak will be displayed. A subsequent increase after the
drop will not be recorded. See Figure 3b

Figure 3b: F-Peak Torque

Peak Mode

When “Peak” is selected the TT will show the maximum torque

recorded over the test. Subsequent increases in the peak will re-
place the existing peak value shown. See Figure 3c

Figure 3c: Peak

Peak/Track Mode
There are two readings on the screen at once. Upper area dis-

plays the peak torque. The larger, main value shows the live
torque reading.

- Press “Mem” button: Only peak torque will be stored in the

tester’s memory.

- Press “Print” only: The peak torque will be sent to PC

Figure 3d: Peak Torque

Resetting the Tester

Press the RESET key to clear maximum readings.

Backlit Display

When you press any key, or apply torque to the load sensor great-

er than 0.5 % of full scale the backlight will come on and remain
for 60 seconds.

Saving Readings to Memory

A reading can be saved at any time by pressing ENTER/MEM key.

A total of 500 readings may be stored in the database.

Figure 3e: Number of values saved in Memory

Track

Symbol

First Peak

Torque Symbol

Peak Torque

Symbol

Peak & Value