status 03/06 - PVE41XGB.doc
page 6 of 12
subject to alterations; errors including printer’s errors
Notes on programming
The following programming examples describe the two different tuning methods for setting the
device. A brief explanation will first be given on documenting the display procedure after pressing the
[P] key.
If the keyboard lock is not set (see programming lock), pressing the [P] key will always switch to
programming mode with the program number 0. For approx. 3 seconds, a 0 will appear in the display,
preceded by a
P
– see programming examples. After 3 seconds, the calibration mode 0 will flash
alternately with the program number 0 for a further 4 seconds. By pressing the
W
or
V
keys, the
value stored for the calibration mode is displayed for approx. 3 seconds, during which it can be
changed with the
W
or
V
keys. After the 3 seconds have elapsed, the program number 0 flashes
alternately with the currently set calibration mode for further 4 seconds. The changed value can be
saved by simultaneously pressing the [P] and
W
keys simultaneously. The device acknowledges this
by displaying 4 horizontal bars. Changing to program number 1 is done by pressing the [P] and
V
keys.
All further settings can be made by following the above procedure. If you are in programming mode
and do not press any key within 7 seconds, the device automatically reverts from the programming
mode to the operating mode. You can change back again to programming mode at any time by
pressing the [P] key.
Programming example
1. Sensor calibration / Tuning the measuring section to a real measuring value
When using the sensor calibration, a voltage or current signal must be applied to the display unit for
the scaling. Furthermore, it must be ensured that the device is supplied with the correct auxiliary
voltage. During
sensor calibration
, the device is tuned to a
real measuring value
.
The base for this programming example is the basic value after resetting to the factory settings.
For the sensor calibration, a zero must always be stored under program number 0!
Measuring input:
0/4...20 mA
Measuring signal: 4...20 mA
Display:
4 mA = 0.0
20
mA
=
300.0
Display time:
2.0 seconds
Set point S1:
60.0 and closed circuit
falling at 60.0 and rising at 58.0
(corresponding
hysteresis
=
2.0)
Set point S2:
150.0 and open circuit
Rising at 150.0 and falling at 80.0
(corresponding
hysteresis
=
70.0)
Analogue output: Measuring signal 4 mA corresponds to a display of 0.0 and 0 V at the analogue
output.
Measuring signal 20 mA corresponds to a display of 300.0 and
10 V at the analog output.
