KROHNE LEVEL-SONIC BM90 Series Installation And Operating Instructions Manual page 26

Pr. 76 Hardware Test
Press 'DSP' then 'ENT' to test LED's/LCD and relays.
The LCD will flash all segments, and the LED's will count
u p i n b i n a r y . P r e s s ' C E ' t o e n d t e s t , o r l e t i t t i m e o u t .
CAUTION: DO NOT USE THIS TEST WHEN CON
NECTED TO PUMPS OR RELAYS.
USING THIS PARAMETER WILL OPE-
RATE ALL RELAYS AND MIGHT START
PUMPS, ALARMS ETC.
Pr. 77 Transmitter Test
Press 'DSP' then 'ENT', the transmitter should pulse con-
tinuously, (made visible by the neon). By the use of an
oscilloscope the return echo can be observed if required.
Also useful to ascertain if a transducer is correctly con-
ne c te d , as it w il l ' cl i c k ' r e p ea t ed ly . Pr ess ' CE ' t o end .
Pr. 78 Simulation
The value displayed will depend on the value set in Pr.01.
Press 'ENT' to simulate the operation of the instrument as
set up between Blanking and Empty distance. The dis-
play will depend on mode set in Pr.01.
Mode
= 1 ( l i q u i d l e v e l )
= 2 (distance measurement)
= 3 ( d i f f e r e n t i a l ) NO SIMULATION AVAILABLE
= 4 (OCM) -
It will set all LED's/relays and the current output as pro-
grammed. Therefore, care must be taken if the instru-
ment is wired into other instruments or controls. The
displayed value, on which all relays are operated, is that
which is set by the operator.
The initial speed of the simulation is that set into Rate of
Change (Pr.6) this can be increased by a factor of 2 by
pressing the '#' key and the key can be pressed 6 times
(x64). To reduce the speed press the '-' key, the speed
cannot be reduced below that defined by Rate of Change,
P r . 6 .
The direction of the simulation can be changed by using
t h e 's' a n d 't ' keys, which one has to be pressed
depends on the set up. The simulation can be stopped
and re-started using the 'TEST' key.
Press 'CE' to end.
26
LEVEL
DISTANCE
LEVEL
Pr. 79 to Pr. 94 Unspecified
Pr. 95 Serial Number (Viewable only)
This parameter displays the serial number of the Level-
Sonic BM90 unit.
Pr. 96 Security C ode Store
A new security code can be entered at this parameter,
but after entry it is scrambled. Refer to factory if you for-
get the security code and quote the number displayed
here.
Pr. 97 Relay Hours/Starts Totaliser Reset
The totalisers are cleared by entering:
Pr.97 and 'DSP' to show ====
Press CE to clear the screen
Press Enter to request 'COdE'
Enter 9753
Press Enter to show 't.rES' and ====
Pr. 98 Clear the OCM Totaliser i.e. HI.TO and LO.TO
(D= ==== )
The totalisers are cleared by entering:
Pr.98 and 'DSP' to show ====
Press CE to clear the screen
Press Enter to request 'COdE'
Enter 9753
Press Enter to show 't.rES' and ====
Pr.99 Return to Factory Default Parameter Settings
Press 'MODE' to display 'PROG'
' 1 ' immediately to display 'Pr.01' or previous
Pr. number.
' 9 9 ' to display Pr.99
'DSP' t o d i s p l a y
' C E ' to clear the display
'ENT' to display 'COdE' requesting the security
code* (see note)
'9753' and 'ENT' to display P.rES followed by
t.rES, and then ====
'DSP' to display 'Pr.99' and now the new pro
gramme can be entered.
NOTE * Enter your own security code number if you
have changed it from factory setting of 9753.
(D= ==== )