EasyTREK Compact Ultrasonic Level Transmitters
21
1.7 32-Point Linearisation Curve
P47: - - - a
Linearisation
Linearisation is the method of assigning requested (calibrated or calculated) level, volume or flow to values measured by the transmitter.
It can be used for instance if the sound velocity is not known (LEVEL
⇒
LEVEL) or in the case of vertical cylindrical tank (LEVEL
⇒
VOLUME)
etc.
a
Linearisation
0
OFF (FACTORY DEFAULT)
1
ON
1.8 Service Parameters
P60: (h)
Overall operating hours of the unit
Indication varies according to the elapsed time:
Operating hours
Indication form
0 to 999.9h
xxx,x
1000 to 9999h
xxxx
Over 9999h
X,xx: e meaning x,xx 10
e
P61: (h)
Time elapsed after last switch-on
P62: (h)
Operating hours of the relay
P63:
Number of switching cycle of the relay
Indication same as in
P60
.
P64: (°C/°F) Actual temperature of the transducer
P65: (°C/°F) Maximum temperature of the transducer
P66: (°C/°F) Minimum temperature of the transducer
In case of a breaking in the temperature measuring Pt10 element „PtErr” will be displayed (See Chapter 7). The transmitter will perform
temperature correction corresponding to 20ºC.
