11
These are amplified sensors AC. In this version, the standard characteristics of the sensors
include protection against permanent load short circuit, and protection against the peaks
produced when the inductive loads are disconnected.
7.2.3 Procedure for calibrating the laser probe 24V cc Out 4÷20mA/2 NO (4 thresholds)
The laser probe has an on-board viewing and programming display. It is possible to work in analogue (with a 4 to 20 mA signal)
or digital (two outputs and four intervention thresholds) mode.
The table with the laser probe calibration parameters is shown below.
7.2.4 CALIBRATION THRESHOLDS OF THE ULTRASOUND PROBE (optional)
The green led indicates the probe is powered.
Yellow LED indicates the operating mode of reading.
Below the table with the calibration parameters of ultrasound probe, for 10 and 30 kg reservoirs.
8. PROBLEMS AND SOLUTIONS
Figure 6
L
ASER PROBE CALIBRATION
10 kg Reservoir
30 kg Reservoir
Pos.
Level
Output signal
Set-up Height X
[mm]
Grease
quantity
[kg]
Height X
[mm]
Grease
quantity
[kg]
A
Absolute
maximum level
OUT 2= Fno
nsP2
220
11
220
23
C
Minimum level
fsP2
300
5
490
5
B
Maximum level
OUT 1= Fno
nsP1
250
9
250
21
D
Absolute
minimum level
fsP1
330
3
520
3
SENSITIVITY
ADJUSTMENT
LED
CABL
SENSOR (BACK VIEW)
NOTE
:
To change calibration thresholds of laser and ultrasound probes contact DROPSA staff
Figure 7
ULTRASOUND PROBE CALIBRATION
Pos.
Reservoir 10 kg
Reservoir 30 kg
Level
Output
signal
Height X
[mm]
Grease
quantity [kg]
Height X
[mm]
Grease
quantity [kg]
A
Absolute
maximum
level
1 threshold
110
10
110
25
B
Absolute
minimum
level
2 threshold
270
4
490
2
ATTENTION
:
The machine may only be opened and repaired by authorised Dropsa personnel.
