Checkline Series-5I - Manual (Page 23)

Model 5i Digital Force / Torque Indicator User’s Guide
22
The sensor should be mounted vertically to a test stand or fixture rugged enough to withstand a load
equal to the full capacity of the sensor. Certified deadweights, torque arms/wheels, and/or master load
cells should be used, along with appropriate mounting brackets and fixtures. Caution should be taken
while handling such equipment.
10.2 Calibration Procedure
In the interests of simplicity and brevity, the following instructions use force terminology only. Such
wording is displayed only when a force sensor is being calibrated. When a torque sensor is being
calibrated, the terms COMPRESSION and TENSION are replaced by CLOCKWISE and COUNTER-
CLOCKWISE, respectively.
1. Select Calibration from the menu. The display will appear as follows:
The sensor can be calibrated at up to 10 points in each direction. Enter the number of calibration
points for each direction (compression and tension or clockwise and counter-clockwise). At least
one point must be selected for each direction.
Note: To achieve the accuracy specification of ±0.1% ±1 digit + sensor, it is recommended to
calibrate the sensor at 5 or more even increments in both the tension and compression directions.
For example, a sensor with capacity of 10 lbF should be calibrated at 2, 4, 6, 8, and 10 lb loads in
each direction.
2. To escape the Calibration menu at any time, press ESCAPE. The display will appear as follows:
Selecting “CANCEL” will revert back to the Calibration setup. Selecting “EXIT W/O SAVING” will
return to the menu without saving changes.
3. After the number of calibration points has been entered, press ENTER. The display will appear as
follows:
CALIBRATION
NOT COMPLETE
CANCEL
EXIT W/O SAVING
CALIBRATION
ENTER # CAL POINTS
(1 TO 10)
COMPRESSION:
5
TENSION :
5
CALIBRATION
OFFSET
Place sensor
horizontal
THEN PRESS ZERO