BEKA BA627E-SS, Manual, Page: 9 / 18

5. CONFIGURATION AND CALIBRATION
Set Point Stations are configured and calibrated via
the four front panel push buttons.
All the configura-
tion functions are contained in an easy to use intuit-
ive menu that is shown diagrammatically in Fig 7.
Each menu function is summarised in section 5.1
and includes a reference to more detailed informa-
tion.
Throughout this manual push buttons are shown as
( , ) , & or * and the Set Point Station display
legends are shown in a seven segment font e.g. CAL
and CodE .
Access to the configuration menu is obtained by
operating the
( and ) push buttons simultan-
eously. If the Set Point Station security code is set to
the default
0000
the first parameter
rE5n
will be dis-
played. If a security code other than the default code
0000 has already been entered, the Set Point Station
will display
CodE
. Pressing the
(
button will result
in 0000 being displayed with one digit flashing. To
gain access the four digit security code should be
entered using the
&
and
*
push buttons to set the
flashing digit and the ( button to move control to
the next digit. When the correct four digit code has
been entered, pressing
)
will cause the first para-
meter rE5n to be displayed. If the code is incorrect,
or a button is not pressed within twenty seconds, the
Set Point Station will automatically return to the oper-
ating mode.
Once within the configuration menu the required
parameter can be reached by scrolling through the
menu using the
& or * push buttons as shown in
Fig 7. When returning to the operating mode follow-
ing recalibration or a change to any function, the Set
Point Station will display
dAtA followed by 5AVE while
the new information is stored in permanent memory.
All new Set Point Stations are supplied calibrated as
requested at the time of ordering. If calibration is not
requested, instruments will be supplied with the fol-
lowing default configuration:
D
efault Configuration
Resolution rE5n 10
Display at 4mA output 2ero 0 . 00
Display at 20mA output 5PAn 100 . 00
Output current limits H--L 03 . 000 & 22 . 000
Maximum output rate of change 000
( button in operating mode P . Fn PC
Pulses per rev of external encoder EnC 12
One or two handed operation Hnd 2 H
Security access code CodE 0000
Default configuration can easily be changed on-site.
5.1 Summary of configuration functions
This section summarises each of the configuration
functions and includes a cross reference to a more
detailed description. Fig 7 illustrates the location of
each function within the configuration menu.
Display Summary of function
rE5n Adjustment resolution
Defines the adjustment resolution of the
front panel
&
and
*
buttons and the
optional external rotary control when ad-
justing the output current with the Set
Point Station in the operating mode. May
be set to
1 , 10 or 100 least significant di-
gits of the display.
See section 5.2
dP Decimal point
Positions a dummy decimal point
between any of the displayed digits or
turns it off.
See section 5.3
CAL and 5Et are alternative ways of
calibrating the Set Point Station digital display.
CAL Calibration of the digital display using
an external current meter.
Preferred method of calibrating the digital
display which enables the zero and span
of the Set Point Station display to be cal-
ibrated to show the engineering units rep-
resented by the 4/20mA output. Calibra-
tion may be performed at any output cur-
rent providing the points are at least 4mA
apart.
Requires an accurate external
current meter.
See section 5.4
5Et Calibration of digital display using in-
ternal references.
Using the Set Point Station’s internal ref-
erence, this function enables the digital
display to be calibrated to show the en-
gineering units represented by the output
current at 4mA and 20mA.
Unlike the
CAL function, an accurate external current
measuring instrument is not required and
the Set Point Station does not have to be
disconnected from the loop, but calibra-
tion can only be performed at 4 and
20mA.
See section 5.5
9