BEKA BA334D, Руководство пользователя

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Display Description of function
'LOC.rSEt'Local reset of total display
When turned 'On' the total display
may be reset to zero from the
display mode by simultaneously
operating the Up and Down push-
buttons for two seconds.
See section 6.13
'CLr. Gtot' Clears grand total
This function resets the grand
total to zero when 'CLr YES' is
selected, and 'SurE' is entered to
confirm the instruction.
Note : Once cleared, a grand total
can not be recovered.
See section 6.14
'COdE' Security code
Defines a four digit numeric code
which must be entered to gain
access to the programmable
functions. Default code 0000
disables the security function and
allows unrestricted access to all
programmable functions.
See section 6.15
6.4 Display update interval: ‘UpdAtE’
Six different intervals between display updates
varying between 0.5 and 5 seconds may be
selected. If either the rate or the total displays
are likely to change rapidly, a longer interval
between updates may simplify reading the
instrument display. The selected update
interval does not affect the update time of any
other instrument function such as the optional
4/20mA output.
To define the update interval select ‘UpdAtE’
from the main menu and press P to reveal the
current time. Pressing the Up or Down button
will scroll through the six times. When the
required interval has been selected press E to
return to the main menu.
6.5 Type of input: ‘InPut’
The BA334D may be programmed to accept
pulse inputs from a wide variety of sensors.
To define an input type select ‘InPut’ from the
menu and press P which will reveal the current
input type. Pressing Up or Down will scroll
through the five options:
‘UOLts’ Voltage pulse input
Threshold 1V and 3V
5kHz max.
Input terminals 3 and 4
‘COIL’ Low voltage pulse
Threshold 20mV
peak. 5kHz max.
Input terminals 3 and 4
‘Pr.dEt’ NAMUR proximity detector
Threshold 1.2 and 2.1mA
5kHz max.
Input terminals 5 and 6
‘COntACt’ Switch contact
Threshold 100 and 1000
Ω
100Hz max
Input terminals 5 and 6
‘OP.COL’ Open collector
Threshold 2k
Ω
and 10k
Ω
5kHz max.
Input terminals 5 and 6
When the required type of input has been
selected press E to return to the main menu.
Note: To count correctly, the input signal must
fall below the lower switching threshold and
rise above the higher switching threshold.
6.6 Position of the decimal points: ‘d.P.’
The rate display can have up to six digits and
the decimal point may be positioned between
any of them, or omitted. Similarly, the total
display has eight digits and the decimal point
may be positioned between any of them, or
may be omitted.
To adjust the position of either decimal point
select 'd.P.' from the main menu and press P.
This will activate both displays with one digit
plus the following decimal point of the total
display flashing. If only the least significant
digit is flashing, this indicates that the decimal
point is omitted.
The position of the decimal point can be moved
by pressing the Up or Down push-button.
Operating the P push-button will toggle control
between the two displays. When both decimal
points have been correctly positioned press E
to return to the main menu.
If the application requires flow rate to be the
primary display i.e. shown on the large display,
the d.P. function enables the rate and total
displays to be interchanged. The rate display
will continue to have six digits but the total
display will be reduced from eight to six digits.