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Command modes
The command modes must be used by the user only to make periodical recalibrations of the system in the
process, and are made through:
√
Pin CAL
√
Magnetic sensor
The event combinations give the following functions:
1.
Autozero
2.
Calibration (CAL)
3.
Reset autozero
1) A
utozero
Application mode
The Autozero function is activated by :
1) positioning the magnet near the Autozero label on the
shell of the sensor.
2) Short-circuiting the correct pins (e.g. pins E-F for the 6
pin connector) for the external Autozero version.
The magnet has to be maintained on the Autozero posi-
tion for a time within 2 to 5 seconds.
NOTES:
During the Autozero phase, the current output for the IE/IX transmitter series, can increase up to 7 mA.
That's a short variation only visible during the Autozero phase; it won't have any effects on the final signal.
Magnetic
2...5 seconds
pointer
Warning: the periodical zero ricalibration through the Autozero function must be done at stable tempe-
rature and no pressure in the extrusion chamber.
80175G_MAN_I3-IE-IN-IX_I7_11-2018_ENG
Limits
Result
± 40% F.S.
The Autozero effect will be visible after
waiting 2 seconds after the start of the
seconds.
The precision of the zero value will be
defined by the accuracy class of the
sensor.
1) Machine pressure = 0 bar and transducer
powered.
2) Put magnetic pointer on marked spot
(2...5 seconds).
3) Remove magnetic pointer.
4) Ready !
= marked spot
Remove
27
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