24
P70:
Number of Echoes / Echo Map
Viewing this parameter gives the
number of echoes detected by the
system. Entering this parameter
will save the actual echo map, and
the distance and amplitude of these
echoes can be read-out one by one.
To move the Measuring Window
manually to one of the echoes
displayed in the Echo Map:
1). Select an echo in the Echo map
(display should indicate the
distance of the selected echo)
2). Press the UP
+ DOWN
keys simultaneously (display will
indicate “Set 33”)
3). The selected echo is loaded into
the P33 parameter (see P33)
yy
: xxxx
yy
: xxxx
70
: _ _ XX
ENTER
NEXT
UP, DOWN
yy
: xxxx
NEXT
yy
: xxxx
UP, DOWN
ENTER
NEXT
Number of
echoes in
the echo map
(distance)
YY serial number
of the echo
xx value of
DIST or AMPL
(distance)
(amplitude)
(amplitude)
P71: Distance of the of Measuring Window (read-out parameter)
P72 Amplitude of the Echo in the Measuring (read-out parameter)
P73:(msec) Echo Position (time) (read out parameter)
P74:
Signal To Noise Ratio (read out parameter)
Ratio
Measurement conditions
Over 70
Excellent
Between 70 and 30
Good
Under 30
Unreliable
P75:
Blocking Distance
The actual close-end blocking distance is displayed. Provides useful information if automatic blocking was selected in
P05
.
6.9
Additional Open Channel Flow Metering Features
P76: (LEV) Head of flow
The Headwater value can be checked here. This is the “h” value in the formula for flow calculation.
P77:
TOT1 volume flow totaliser (resetable)
P78:
TOT2 volume flow totaliser (non-resetable)
Resetting TOT1 totaliser:
1). Go to the parameter
P77.
2). Press NEXT
+ DOWN
simultaneously.
3). Display will indicate: “t1 Clr”.
4.) Press ENTER
E
for deleting.
6.10
Test Parameters
P80: (mA) Current output test
Entering this parameter will result in displaying the actual current output. Set any value between 3,8 and 20,5 and Press
E
.
Check current output by amp. meter. It has to show the same value set previously. Return to the parameter address by
pressing ENTER
E
.
P81: - - - a Relay test
The actual state of the relay can be seen on the display (code according to the table below and symbol on the screen). Test
the relay by pressing UP
and DOWN
white observing change of the symbol and the code or listening to the ticking of
the relay or checking on-off resistance by a suitable resistance meter.
a
Relay state
0
De-energised
1
Energised
P97: b:a.aa Software code
a.aa:
Number of the software version
b:
Code of the special version