4. If an adjustment is required, increase SENSITIVITY to lengthen the
flag reading or decrease SENSITIVITY to shorten flag length.
5. Press SAVE to permanently save the new value to memory.
Digital Encoder Calibration
The Digital Encoder is calibrated at Dynisco Polymer Test prior to shipment.
Because the arm is locked into place, calibration is rarely required.
The instrument does allow you to reset the home position of the encoder.
If calibration needs to be checked due to suspected encoder damage, then
contact Dynisco Polymer Test for assistance and the necessary tool kit.
Calibration: Digital Flag Home
Offset
Calibration Steps:
1. Press the
SYS
key and select
CAL
. Browse the menu and select
Digital
Flag Home.
The instrument prompts you to place the encoder arm in the home
position. This is the up most position that the flag arm can go into.
2. Place the encoder arm in the up most position and press
RESET
to
set the encoder count to 105.00 mm at the top home position. Press
QUIT
to end procedure.
ESC
out to main menu.
The encoder should now be set to the proper encoder settings. A
digital micrometer mounted in a special fixture is available from the
factory to check and verify accuracy of the encoder unit. Please contact
your sales representative.
Intrinsic Viscosity
The IV offset is the difference between the computed IV and the
experimentally obtained IV. If option available, enter the difference here for
correlation during IV runs. Please reference previous IV sections in manual
Series 4000 Melt Indexer Operation Manual
Instrument Calibration
62
