Quick calibration reference
031-300-190-169 REVISION B 01/06/04 190169_B
1
1 Quick calibration reference
Warning switch power off when installing or removing components in the central unit.
Note: There should be no large change from the start software. If the desired display can not be
achieved the problem could be; wrong software, bad transducer or air in hydraulic line, angle or
length set wrong or bad sensor. Do not continue with further calibration until you have
contacted PAT.
1. Power ON, ensure the system version is DGCTV1.0H or newer. Power OFF.
2. Ensure correct software is used, correct software should come from PAT America or PAT
approved source. Connect PC via null modem cable to the console / CU housing, Power ON.
Follow the procedure to up load the software to the system. See section 2.
3. Acquire a test data sheet and fill in the crane model, S/N, date and the SN’s of PAT components
etc. Power OFF disconnect the PC, Power ON.
4. Follow the procedure for zeroing the Transducers and calibrating Angle and Length through the
console.
5. Power OFF connect hand terminal, Power ON.
6. PRESS "T" then "Y" to initialize the data.
7. PRESS "O" then " User code[699]", then DAY, MONTH, YEAR then crane serial number.
8. PRESS “W” then “8” then enter then “255” then enter then “K”.
9. Bleed air from lines, securely connect hydraulics and cycle the boom through entire working
range several times.
10. Boom must be fully extended and boom between 50° to the lowest angle on the load chart for the
model crane being calibrated. Note: Do not operate crane out of the load chart for the model
crane being calibrated.
11. To adjust surface relation, press “O” then “Enter” then “J” [DGB] then enter 3.1.5, move this value
until the surface relation is correct, if desired the surface relation can be set later. Note: This
affects the whole crane and once calibration starts it can not be readjusted.
12. To adjust the hook weight, press “O” then “Enter” then “J” [DGB] then enter 3.1.7, move this value
until the hook weight is correct. Note: This affects the whole crane and once calibration starts it
can not be readjusted.
13. Perform a cutoff test with a light load on the long boom. If the load display is good and the cutoff
is 90% to 100%, proceed to step 15
14. If the cutoff is not correct, the load can be adjusted with DGB 3.1.6 Note: if more change than +/-
100 is needed Check hydraulic components, call PAT. Repeat cutoff test. Note: This affects the
whole crane and once calibration starts it can not be readjusted.
15. The surface relation can be adjusted with DGB 3.1.5 but this should not be needed. Note: if more
change than +/- 100 is needed Check hydraulic components, call PAT. Repeat cutoff test. Note:
This affects the whole crane and once calibration starts it can not be readjusted.
16. Continue with all other cutoff test required for the main boom. If load changes are required then
perform a “C” function. (see “C” calibration)
17. Perform all cutoff tests on the mainboom, retracted jib. If no changes are made continue to next
step. If load changes are required then perform an “E” function. (see “E” calibration)
18. Perform all cutoff tests on the mainboom, extended jib. If no changes are made continue to next
step. If load changes are required then perform an “E” function. (see “E” calibration)
19. Power OFF connect the PC via the null modem cable to the console/ CU, Power ON follow the
procedure to download the final dat from the system See section 2.
20. Power ON check the system, ensure there are no errors.
21. Send crane final data, TLK and test sheets to PAT ASAP after calibration.
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