GAMMA 5800 Els STRINGING MACHINE 2 POINT SC MOUNTING (Issue 1 - June 2006) - Manual (Page 18)

17
Tension Calibration Procedure
Each stringing machine has been
checked and calibrated at the fac-
tory using accurate load sensing
devices to ensure that the machine
pulls at the correct tension. The ten-
sion is then controlled by the pre-set
factory settings of the electronics.
However, if you suspect that your
machine is not pulling at the correct
tension, or if you would like to check the pulling tension using a tension calibration device,
you may do so.
Most tension calibrators (such as a Gamma Tension Calibrator) function by inserting a string
from the end of the calibrator into a string clamp, and pulling on the string located on the
opposite end of the calibrator. The tension measured by the calibration device will then
display the tension being applied to the calibrator by the machine.
After checking the calibration you can change the calibration curve or the offset. If the
tension is off by different amounts at low and high tensions, then adjust the calibration curve
(call GAMMA for this procedure). If the tension is off by the same amount at the low and high
tensions adjust the offset (it can only be adjusted a maximum of 5 lbs up or down.)
Offset Instructions
While the calibrator is attached to the machine pull tension and release it. Immediately after
the string is released hold the “ENT” button for 5 seconds. The memory position (1-4) on
the display will change to a 9. Adust the reading on the LED display to match the reading
of the calibrator using the tension index buttons. Press the “ENT” button to confirm the offset.
To restore the offset back to factory settings turn the machine off. While pressing the “ENT”
& “R” button, turn the machine on and hold the buttons until the count down is complete.
MAINTENANCE and ADJUSTMENTS
Switching the Buzzer Off and On
The buzzer on the machine has a pre-set volume and is preset at the
factory in the “On” mode. In case you prefer to switch the buzzer “Off” turn
off the machine and then at start-up, press and hold the “C” and “M”
buttons while the machine is turned on until the display completes its
count down from 9 to 0. The buzzer will then be turned “Off”. To turn the
buzzer “On” once again, repeat the same procedure at start-up.