Pressure Sensor; Checking The Adjustment; Adjusting The Pressure Sensor - Bosch ACS 810 Repair Instructions

en | 32 | ACS 810 | Calibration
13.3

Pressure sensor

13.3.1

Checking the adjustment

1. Call up the start screen.
2. Press <3> and <Flush> simultaneously and release.
 The message ENTER CODE 0000
1515
and confirm with E .
3. Enter
4. Select "INPUTS TEST" with o u and confirm with E .
 The absolute values of the scales and of the
pressure sensor is displayed.
5. Remove the service hoses on the ACS 810 and
open the HP and LP valves on the front panel
so that the pressure sensor is subjected to the
atmospheric pressure.
6. Check that the pressure value read is between
0.900 and 1.100 bar (the typical value is 1.000
bar).
13.3.2

Adjusting the pressure sensor

i
The pressure sensor is adjusted on the control PCB
using the simulator, as the pressure sensor has
been officially calibrated in the factory.
i
Pressure sensor 0 bar / 16 bar absolute
-1 bar / +15 bar relative.
1. Disconnect the pressure sensor from the control
PCB.
2. Connect the simulator to the control PCB.
3. Connect a multimeter to the simulator.
4. Call up the start screen.
5. Press <3> and <Flush> simultaneously and release.
 The message ENTER CODE 0000
1111
and confirm with E .
6. Enter
7. Select "PRES. CALIBRATION" with o u and
confirm with E .

ZERO CALIBRATION
8. Turn the potentiometer on the simulator until a
voltage of 0 V is displayed.
9. Enter the value 0.000 on the keypad and confirm
with E.

WEIGHT CALIBRATION
10. Turn the potentiometer on the simulator until a
voltage of 3.00 V is displayed.
11. Enter the value 4.800 on the keypad and confirm
with E.
 The menu containing the functions appears on
the display again.
12. Remove the simulator and re-connect the pressure
sensor.
i
Return with <Stop>.
|
1 689 975 253 2021-01-26
is displayed.
is displayed.
is displayed.
is displayed.
i
If the simulator is not available, a simplified
adjustment can be performed. This process
definitely guarantees that the ACS 810 will function
perfectly.
1. Turn on the ACS 810.
2. Open the HP and LP valves on the display and
control panel.
3. Start the vacuum function and maintain the vacuum
in the hoses for 5 minutes (this subjects the
pressure sensor to a vacuum).
4. After 5 minutes, stop the vacuum function and
check on the pressure gages that there are no
leaks.
5. Call up the start screen.
6. Press <3> and <Flush> simultaneously and release.
 The message ENTER CODE 0000
1111
and confirm with E .
7. Enter
8. Select "PRESSURE CALIBRATION" and confirm
with E .
 ZERO CALIBRATION
9. Enter the value 0.000 on the keypad and confirm
with E.
 WEIGHT CALIBRATION
10. Detach the service hoses and set the pressure
sensor to atmospheric pressure.
11. Enter the value 1.000 on the keypad and confirm
with E.
 The menu containing the functions appears on
the display again.
i
Return with <Stop>.
12. Perform the adjustment check described above
(see section 13.3.1).
is displayed.
is displayed.
is displayed.
Robert Bosch GmbH