Robertshaw 5318B, Инструкция по эксплуатации, Страница: 20 / 30

MODEL 5318B INSTRUCTION MANUAL
Level Tek II , Capacitance Level Switch 909GF295
Page 14
“XXXXX” represents the current measurement.
After a short period of time the top line of the
display will begin scrolling the message:
“ Fill tank to LOW setpoint, then press
RT ”
Since the level is already at the desired setpoint
press [RT] to enter the save setpoint mode. The
display will show:
Save Sp-?
YES RT
Press the [RT] pushbutton to store the value or
the [LT] to abort. After pressing the [RT]
pushbutton the setpoint will be stored and the
display will return to the normal mode.
4.5.4.
CONTROL
This mode provides a fixed differential at a
control point determined by the calibrated level.
It is typically used with vertically mounted
probes.
The procedure is entered from the normal mode
by pressing the [DN] pushbutton twice, followed
by the [RT] pushbutton once. The display will
show:
Step 1 RT
The bottom line will be scrolling the following
message:
“ Select method of setpoint calibration ”
Press the [RT] pushbutton once to enter the
methods submenu. The display will now show:
Exit
The bottom line will be scrolling the following
message:
“ Scroll down to select mode, then press
RT to enter or LT to exit ”
Pressing the [DN] pushbutton six times will
access the CONTROL procedure. The display
will show:
Control
The bottom line of the display will be scrolling
the message:
“ Calibrate vertical probe with fixed
differential ”
Pressing the [RT] pushbutton will access the
save setpoint procedure. The display will show:
Set SP
XXXXX
“XXXXX” represents the current measurement.
After a short period of time the top line of the
display will begin scrolling the message:
“ Fill tank to setpoint, then press RT ”
With the level at the desired setpoint, press the
[RT] pushbutton. The display will show:
Save Sp-?
YES RT
After a short period of time the top line of the
display will begin scrolling the message:
“ Do you want to save measured
setpoint? ”
Press the [RT] pushbutton to store the value or
the [LT] to abort. After pressing the [RT]
pushbutton the setpoint will be stored and the
display will return to the normal mode.
4.6. SETPOINT ADJUSTMENTS
(TWEAKING)
It is sometimes desirable to make small
adjustments to the setpoint(s) once the Model
5318B is in “normal” operation. Setpoint
“tweaking” enables changing the setpoint by up
to 10%, in 0.1% increments.
4.6.1.
SELECTING THE SETPOINT TO BE
ADJUSTED
The setpoints are adjusted from the setup menu.
The adjustment procedure is entered from the
normal mode by pressing the [DN] pushbutton
once, followed by pressing the [RT] pushbutton
once. The display will show:
High SP
XXXXX