7
Measurement field (span) adjustment: 20 mA is adjusted
at factory exit, assuming tank is filled up to length of electrode.
If adjustment is needed again, 20 mA output adjustment can be
performed by S calibration after filling the tank up to a desired
level.
Z (Starting Range-Zero) : Measurement starting point - 4 mA S (Measuring Range-Span): Measuring peak point - 20 mA
Identification of Calibration Buttons :
Only the switch 1 is active at first. When SW1 brought into ON position, red led light starts winking with 1 second interval.
Zero level adjust SW1 is on position): Z button must be kept presoed until the green led is flashed.
Span level adjust (SW1 is on position): S button must be kept presoed until the green led is flashed.
After calibration, when SW1 brought into off position, it saves settings to memory and turn back into normal working condition.
1
2 3 4
NONO
S Span Level
Z Zero Level
Switch Settings of Output Signal :
When setting output signal, only the 3rd and 4th switches are active and configuration is defined only if the circuit energized.
Power Supply : 9-36 VDC Max. Load Resistance : (RL) = (Vsup 3) / 0.02 [ ]
1
2 3 4
NONO
1
2 3 4
NONO
1
2 3 4
NONO
1
2 3 4
NONO
1
2 3 4
NONO
or
4-20 mA Two Wire 4-20 mA Three Wire 0-10 V Three Wire0-20 mA Three Wire
Zero adjustment (zero): 4 mA adjustment is performed at factory exit,
assuming tank is completely empty. If adjustment is needed again,
4 mA output adjustment can be performed by Z calibration after the
tank is filled until initial level.
Changes are not effective during normal operation.
Calibration :
1
2 3 4
NONO
Shifting Span Point :
1
2 3 4
NONO
1
2 3 4
NONO
1
2 3 4
NONO
1
2 3 4
NONO
1
2 3 4
NONO
Make SW3 ON while SW2 ON.
If SW3 brought into ON position, while SW2 is in
ON position.
The span point that's set before, shifts upper.
When it came to the desired value,
the switch should be taken to the off position.
Make SW4 ON while SW2 ON.
If SW4 brought into ON position, while SW2
is in ON position.
The span point that's set before, shifts down,
towards. When it came to the desired value,
the switch should be taken to the off position.
Shifting Zero Point :
Make SW3 ON while SW2+SW1 ON.
If SW3 brought into ON position, while SW2+SW1
are in ON position.
The span point that's set before, shifts upper.
When it came to the desired value,
the switch should be taken to the off position.
Make SW4 ON while SW2+SW1 ON.
If SW4 brought into ON position, while SW2+SW1
are in ON position.
The zero point that's set before, shifts down.
When it came to the desired value,
the switch should be taken to the off position.
Make SW2 ON before SW1 ON.
It becomes active when SW2 brought into
ON position and then SW1 brought into
ON position.
Make SW2 ON
It becomes active when SW2 brought into
ON position.
