Page 56 MiniRanger Plus 7ML19981CJ01
Parameter Description
P003 Measurement Response
Collectively sets a number of operating parameters that determine the
maximum rate of change in target range that the reading, alarm and mA
output functions can keep up to.
If MiniRanger Plus cannot keep up with the rate of level change, select a
faster rate. If the reading bounces around an average value, select a slower
rate. In general, reliability is traded for speed. Noisy applications or those
with agitators tend to be more reliable at a slower response rate, as they
make use of filtering, echo verification and longer fail-safe delay.
Note:
Select P003 for a measurement response just faster than the greater of
the maximum filling or emptying rate.
echo verification: discriminates between agitator blades in motion or
spurious noise, and the target surface (true echo).
filter: discriminates between false echoes from constant
acoustical or electrical noise, and the target surface.
fail-safe timer: establishes the period from the time a loss of echo
starts until the fail-safe default (P071) is effected. The
P003 preset timer value can be overridden by P070.
long pulses: sets the number of long pulses to be fired during the
course of a measurement. Reliability (2) is traded for
speed (1).
entry:
measurement response
echo
verification
filter
f-s timer*
(P070)
long
pulses
1 = 0.1 m/min (slow) on on 100 2
2 = 1 m/min
on on 10 2
3 = 10 m/min
on on 1 2
4 = 102 m/min / 1.7 m/sec
off on 0.1 1
5 = 1020 m/min / 17 m/sec (fast) off off 0 1
* fail-safe function is disabled for high level switch operation, P001 = 4.
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