
Calibration
AutoSet 1500 User Manual
28
Ch 3
1088500
11. For two cell calibrations, set the display switch to RIGHT.
Press and release the RESET button.
12. You should now see a number between 170 and 190 on the display.
If no calibration number appears, change the TENSION/COMPRESSION switch
to the opposite position.
If the calibration number is incorrect, stop the calibration procedure. Call Data
Instruments for help.
13. On the WLA computation module:
Set the mode switch to OPERATE and the TENSION/COMPRESSION switch to
COMPRESSION.
Press and release the RESET button. Set the display switch to LEFT. The letters
"cA" will now appear in the displays.
14. If not already done, you must connect a switch to the WLA so you can zero it
after every complete stroke. Manually zeroing the WLA is required because it has
no zero cam connected to it which tells it when the press reaches top dead center.
Without a zero signal, the WLA does not know when to clear the readings for one
stroke and display readings for the next. You tell it when by manually zeroing it.
You should zero the WLA after every stroke of the press.
A normally open, momentary pushbutton switch is recommended. Install the
switch between terminals #1 and #4 on terminal TB2. TB2 is on the left end of the
WLA. Remove the screws on the left end panel and remove panel to see TB2. It is
on the edge of the circuit board. Connect the switch. Then re-assemble the end
panel.
15. Press the zero switch you just installed. The letters "cA" will disappear from the
displays and a zero will appear. Note: The status function light on the WLA will
light each time the switch is pressed.
16. You are done setting up the WLA calibration unit. The WLA will now read the
correct tonnage when you apply a load to the load cells. Go to the procedure titled
"Calibrating your AutoSet 1500" to set up the press and calibrate your AutoSet
1500.