Level limit switch
Series RF 3000
Technical Information / Instruction manual
page
Quickstart
1. Ensure material level is well below
the probe.
Ensure that the unit is properly
mounted and the material level is
well
below the probe
, since the unit
will calibrate to an uncovered probe.
2. Power up calibration
After first time power up, the unit will automatically calibrate.
During calibration (ca. 45 seconds) display states "CAL", red LED is blinking.
After calibration display states the actual measured capacitance followed by "u" for
"Signal output states
u
ncovered".
If other statements on the display are present, see Trouble shooting, page 37.
3. Checking Quickstart settings
If required to change the factory settings for Fail Safe High/Low, Signal output delay or
Sensitivity, use Quickstart menu (see page 24).
Unit is ready to work
Display
User interface
Display LED
Explanation
XXX u
XXX c
green/yellow* Actual measured capacitance in pF.
Actual signal output: states
u
ncovered probe "u" or
c
overed probe "c"
Resolution is 0.1pF (<100pF) or 0.5pF (>100pF). If values are >100pF, a dot behind the number means 0.5
pF (e.g. 100. means 100.5pF)
Note: If the actual measured capacitance is higher than electronic can measure (>400pF with sensitivity
setting >=2pF or >100pF with sensitivity setting <=1pF), the unit will state "400c" or "100c". The
measurement is valid, since the actual capacitance is well above the calibrated switchpoint.
Signal output states
c
overed probe "c" in any case.
LEDs:
Green = relay activated
Yellow = relay idle
Red = maintenance (blinking), error (on)
Measurement mode
The unit states the actual measured capacitance and the state of the signal output
Power up calibration at first time operation
* Green or yellow depending on FSH/FSL setting, see page 24.
If other statements on the display are present, see Trouble shooting, page 37.
Behaviour after first time power up (factory setting).
If unit is switched OFF and then again ON, this calibration will NOT be repeated.
RFnivo
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RF 3000 d
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