590-2112-501A/SL-29427/4200-117
3-3
Revision 3
4.
Place a thin strip of the 3m gel tape on the bottom of the sensor, and apply a small amount of
the adhesive (3/4
”
Length by 1/4
” W
idth by 1/4
”
depth ) on the side of the sensor that is facing
the battery case. See Figure 5 Adding Bonding adhesive to the ELS Sensor Module and attach to
Battery Case for details.
Figure 5 - Adding Bonding Adhesive to the ELS Sensor Module and attach to Battery Case
5.
Peel off the protective cover on the gel tape.
6.
Place the sensor on the battery case.
a.
When mounting the sensor, apply firm pressure in order to push out any air bubble that
could exist inside the adhesive layer.
b.
Check to make sure that the trigger level line in the sensor is aligned correctly with the
low-level line on the battery case.
7.
Connect power to the sensor.
8.
Press the calibration button twice.
a.
The ELS will calibrate by performing 16 readings of the base line signal. The green LED
will blink showing the occurrence of those readings.
b.
The red LED indicates the quality of the bonding that was just applied as follows:
•
OFF
: Good coupling.
•
FAST blink
: Coupling is not good, but the device is able to work. Recommended to
reseat the sensor.
•
Solid ON
: Bad acoustic coupling. Sensor needs to be reseated.
c.
After the calibration process finishes, the sensor will continue its normal operation. If
the electrolyte level is below the lower limit for 1 hour, the red light comes on indicating
additional electrolyte need to be added.
9.
After finishing the installation of all sensors, press the calibration button three times for three or
more seconds each time.. The red LED flashes, indicating the ELS is currently in self-calibration
mode. In this mode of operation, the sensor will perform a calibration every 10 minutes for 24
hours (this happens during the
adhesive’s curing time)
.