TeeJet 814-AB Airblast Sprayer Monitor - Manual (Page 8)

814-AB Sprayer Monitor Programming and Operating Manual US 9/98 Page 8 of 15
P
RESSURE SENSOR CALIBRATION
If you don’t have a pressure sensor connected to your system, you may skip this step. You
only have to program the maximum pressure to zero in step 2.
If a pressure sensor is connected, it is calibrated with two programming steps. The first step
calibrates the sensor at 0 PSI (bar), while the second step calibrates the maximum pressure
of the sensor. The sensor can only be a 4 to 20 mA or 0 to 20 mA type.
Step 1
Default = 4.0 mA
In the first step the number of mA corresponding to 0 psi must be entered.
Use the Up and Down keys to change the value. If a 4-20 mA sensor is being used, 4 mA
would represent 0 PSI (bar) and should be entered here. If a 0-20 mA sensor is used, 0 mA
would represent 0 PSI (bar).
>4.0 mA 0.0 Psi
Press the Pro key to save this parameter and to advance to the next programming step.
Step 2
Default = 145 PSI (10 bar)
The second pressure calibration step specifies the maximum rated pressure of the sensor at
20mA. If no pressure sensor is connected then zero must be entered in this step.
Use the Up and Down keys to change the value.
>145 Psi 20 mA
Press the Pro key to save this parameter and to advance to the next programming step.
C
OMPLETING THE
S
YSTEM
S
ETUP
M
ODE
When you have completed the last calibration or programming step, you have completed the
System Setup Mode.
NOW, PRESS AND HOLD THE Pro KEY FOR THREE SECONDS AND THE CONSOLE
WILL RETURN TO THE NORMAL MONITOR MODE.
Note: For your protection, the Console will not automatically power down while in the
System Setup Mode. You must exit properly as described above to enable the
auto power down feature.
Note: Cutting the power to the controller while in the System Setup Mode will not save
any changes made into the computer’s memory.