gefran ILI Series Original Operating Instructions page 9

TRANSDUCER INSTALLATION
Installation procedure
1) Make sure the drilling procedure has been realized correctly. If the sensor is installed in a previously used hole, make sure the
hole is completely clean and free of any plastic residual.
2) Remove the protective cap from the sensor top.
3) Lubrificate the thread with non-grip grease such as Neverseez (Bostik), or C5A (Felpro), or equivalent.
4) Insert firmly the sensor into the hole, first by hand and then with a wrench, 1/4 turn at a time.
Recommended torque: 40 Nm.
NOTE: Please pay particular attention to the sensor installation when it's provided in its fixed mechanis configuration.
In this case, during the clamping phase any misalignment. Has tube avoided, otherwise a possible interference of the sensor mechanical
coupling can occur.
Calibration procedure (Analog output option)
Bring the system to work temperature with the transducer installed and connected to the measurement instrument without any pressure
applied.
The measurement chain connected to the transducer is calibrated as follows:
1) Reset the indication on the instrument to reset the temperature variation zero shift. Use the Autozero function to run the reset (see par.7).
a) For correct zero resetting, run Autozero only after work temperature has been completely reached.
2) Calibrate the instrument and have it display the calibration value (80% of full scale) (see par.7).
3) If the instrument does not exactly indicate zero, repeat points 1 and 2. In this way, the instrument is calibrated to give the exact
indication in the chosen engineering unit.
Calibration procedure (IO-Link output)
Bring the system to work temperature with the transducer installed and connected to the measurement instrument without any pressure
applied.
The measurement chain connected to the transducer is calibrated as follows:
1) Use the Autozero function to run the reset (see par. 7) ; run Autozero only after work temperature has been completely reached.
2) Calibrate the instrument and have it display the calibration value (80% of full scale). (see par. 7)
3) If the instrument does not exactly indicate zero, repeat points 1 and 2. In this way, the instrument is calibrated to give the exact
indication in the chosen engineering unit.
Removal (Figure 1)
To remove the transducer from its seat and carry on the working process, dummy plugs with identical mechanical dimensions are available.
The dummy plugs differ by type of threading; max pressure range is 2000 bar for all rods.
The dummy plugs are available in the following versions: SC12 1/2-20UNF seat - SC18 M18x1,5 seat
Brackets (Figure 2)
Models with flexible sheaths require the housing precise fixing. Suitable fastening brackets (SF18) are recommended.
Remember that the fastening point must be vibration-free (vibrations affect the measurement) and that temperatures must not exceed the
maximum temperature range for the strain gauge housing (as stated on the sensor technical sheet).
Extruder starting
Bring the system to working temperature with the transducer installed and without any pressure applied.
Wait until all the material is at the same temperature to prevent the transducer damage by semi-solid material.
Seat cleaning & Cleaning tool
As mentioned in the notes, the seat must be cleaned before the transducer installation.
The cleaning tool is a hard metal cutting tool specially designed to remove working materials residuals.
Recommended procedure (Figure 3)
The following procedure must be implemented with the material in a fluid condition.
1) Insert the tool in the seat and screw down the cutting rod (normally a 1/4 turn at a time).
2) Turn the pilot cutter clockwise until there is no resistance to cutting.
3) Repeat the procedure until the seat is completely clean.
For constructive reasons, the maximum torque applicable to the cutter is 15 Nm (1.5 Kgm).
If the hole occlusion requires higher torque for removal, use the drilling kit and follow the recommended procedure.
The cleaning tool is available in the following versions: CT12 1/2-20UNF seat - CT18 M18x1,5 seat.
Figure 1
80618_MAN_IO-LINK IMPACT_12-2019_ENG
Figure 2 Figure 3
9