KROHNE BM 90 EN - Manual (Page 26)

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Pr. 95 Serial Number (Viewable only)
Pr. 79 to Pr. 94 Unspecified Pr. 76 Hardware Test
Pr. 77 Transmitter Test
Pr. 78 Simulation
Press ’DSP’ then ’ENT’ to test LED’s/LCD and relays.
The LCD will flash all segments, and the LED’s will count
up in binary. Press ’CE’ to end test, or let it time out.
CAUTION: DO NOT USE THIS TEST WHEN CON
N E C T E D T O P U M P S O R R E L A Y S .
USING THIS PARAMETER WILL OPE-
RATE ALL RELAYS AND MIGHT START
PUMPS, ALARMS ETC.
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-
nected, as it will ’click’ repeatedly. Press ’CE’ to end.
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 (liquid level) LEVEL
= 2 (distance measurement) DISTANCE
= 3 (differential) NO SIMULATION AVAILABLE
= 4 (OCM) - LEVEL
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,
Pr.6.
The direction of the simulation can be changed by using
the ’s’ and ’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.
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.
This parameter displays the serial number of the Level-
Sonic BM90 unit.
Pr.99 Return to Factory Default Parameter Settings
Pr. 97 Relay Hours/Starts Totaliser Reset (D= ==== )
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 ====
Press ’MODE’ to display ’PROG’
’ 1 ’ immediately to display ’Pr.01’ or previous
Pr. number.
’99’ to display Pr.99
’DSP’ to display
’CE’ 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.