Hirschmann PAT DS 160 - Calibration of Sensors Procedure; Pressure Transducer Calibration Procedure

© 2005 PAT GmbH · D-76275 Ettlingen · Hertzstr. 32 - 34 ·  ++49 (0) 7243 709-0 · FAX ++49 (0) 7243 709-222 · Email: pat.ettlingen@pat-group.net 29
24 160 19_0106E_Rev D.doc / 2005-06-27 / rk.
13.3 Calibration of Sensors Procedure
To access the calibration sensors screen use the following procedure.
1. From the operating screen, press and held both the ⇑- button and the “OK”-button for 5 sec-
onds to display the maintenance screen.
2. The screen show the following selections:
CALIBRATE SENSORS
SENSOR OUTPUTS
EXIT
3. Use the ‘UP’ and ‘DOWN’ arrows to high light (text flashes) calibrate sensors, and then press
‘OK’ to display a similar screen as shown below:
PIS 0.500V 000 PSI
ROD 0.500V 000 PSI
LEN 0.500V XX FT
ANG 0.500V 90 DEG
Go to the following selection for the pressure transducer, length, or angle procedure below to com-
plete sensor calibration after confirming the following step.
4. Knowledge the sensor selection by selecting yes or no.
CALIBRATE SENSOR?
YES
NO
Proceed to the following sections for pressure transducer, length, and angle calibration procedures.
13.3.1
Pressure Transducer Calibration Procedure
After selecting ‘PIS’ or ‘ROD’ in steps 1 through 4 at the beginning of this section complete the follow-
ing procedure. The zero setting consists of defining zero-point offset. The zero point offset is added to
the transducer measurement to calculate the real physical pressure or force.
To define the zero-point offset the pressure transducer or force sensor must be in equilibrium (no load
condition). Therefore the boom must be lowered all the way down (no rest pressure) and the hydraulic
hoses disconnected from the pressure transducers.
CAUTION: Ensure there is no pressure in the hydraulic line when disconnecting the hoses from pres-
sure transducers.
BOOM DOWN COMLETELY
AND DISCONNECT HYDR
OK
EXIT
Press the ‘OK’ button to zero the selected piston or rod side pressure transducer. The rod and piston
side pressure transducers are zeroed individually; therefore, you must complete this procedure for
both piston and rod side pressure transducers.
Press EXIT to leave calibration or select the ‘CALIBRATE SENSORS’ to calibrate another sensor.