Spraying Systems Co AutoJet ES2500, Owner'S Manual

Page: 17 / 28

17
PROGRAMMING THE LEVEL SENSOR
The tank level sensor comes pre - programmed. However, the set points (Q1 – SP1 and Q1 – RP1) can be adjusted to
configure the system specifically for the application.
The level sensor displays the tank level as a percent (%) full. However, all parameters are measured in millimeters
(mm) from the bottom of the probe. The usable range of the level sensor is between 10 mm and 410 mm from the
bottom of the probe, a 400 mm range.
There are two switching outputs that can be adjusted: Q1 and Q2. Output Q1 is used for the Auto - Refill feature and
output Q2 is used for the Low Tank Level indicator.
To access the above parameters from the main display (% full), press and hold the “ Set ” button. Use the up and down
arrows to navigate to “ Q1MENU ” or “ Q2MENU ” and press the “ Set ” button. Use the up and down arrows to navigate
to “ SP1 ” or “ RP1 ” (or “ SP2 ” and “ RP2 ”) and press the “ Set ” button. Use the up and down arrows and the “ Set ” button
to change the numeric values assigned to the given parameter. Instructions for setting other parameters can be found
on pages 32
- 35 of the provided component manual.
Assuming the tank has been initially filled and given the values in the above table, as the system is being used the level
in the tank will decrease. Once the fluid reaches 250 mm from the bottom of the probe, 63% full (100% * (250
-
10)/380=63%), Auto - Refill will turn on. As the fluid level rises and reaches 390 mm from the bottom of the probe,
100% full, Auto - Refill will be turned off.
If Auto - Refill is switched off or the supply is interrupted, and the fluid level reaches 10 mm from the bottom of the
probe, 0% full, the Low Tank Level indicator will turn on. This is intended as a warning that the system is not automati-
cally refilling. The Low Tank Level indicator will turn off once the fluid level rises above 50 mm from the bottom of the
probe, 10% full.
Menu Parameter Name Description Preset
Expert Probe Probe Length Length of probe for this application 457 mm
Qa QAHIGH High Level 20ma Maximum tank level (QAHIGH>QALOW) 380 mm
AutCal
Qa QALOW Low Level 4ma Minimum tank level 10 mm
Qa QAPOL Configure Analog output signal as configured QA - Nrm
Qa QATYP Configure Setting the output signal Auto V
DspVal Length Configure Display shows fill level in % %
Q1 SP1 Switching Point 1 High Level - Auto - Refill stops filling 380
Q1 RP1 Reset Point 1 Low Level - Auto - Refill begins filling 76
Q1 OU1 Switching Function Output Type - Normally Open/Closed Qx - Hnc
Q2 SP2 Switching Point 2 Not Low Level - Indicator will turn off at or 50
Q2 RP2 Reset Point 2 Low Level - Indicator will turn on at or below 10
Q2 OU2 Switching Function Output Type - Normally Open/Closed Qx - Hno