Tinius Olsen MP1200 Extrusion Plastometer Page 7-3
Operation Manual # 02002215
7.4 Zeroing the Encoder on the WLD (Synchronize with PPDT)
7.4.1 Place a clean die in the bore, then place a clean piston it the bore.
7.4.2 From the MP1200 control panel, go to the TEST MODE and then go to the
NAVIGATION mode. Use the Jog Down button to lower the weight until it is
on the piston and the weight support plate is clear of the weight. You should
be able to read the Piston Height and the WLD Height. If you see #### for
Piston Height, gently cycle the PPDT arm down and then gently return it to it
uppermost position. Numbers should now be displayed.
7.4.3 Press the Navigation key, then go into the CONFIGURATION mode. Enter
the Access Code 835.
7.4.4 Press Calibrate on the upper menu line, then Calibrate PPDT, then Short
Calibration. Press Set Zero Offset to zero the Piston Height.
7.4.5 Press Exit.
7.4.6 Press Test Mode to return to the screen where the Piston Height and WLD
are displayed.
7.4.7 Press Navigation, then use the Jug Up key to bring the weight support plate to
the point where it just contacts the weight. The piston Height should still be
zero, or at least very close to zero. Note the WLD height reading.
7.4.8 Press Navigation, then Configuration. Enter the Access code again (835).
Press Calibrate, then Calibrate WLD. Press Height Offset and adjust the value
shown by the reciprocal of the recorded value noted in the previous step.
7.4.9 Press Done, then Test Mode. Save the changes. Piston Height and WLD
Height should be zeroed.
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