Camille Bauer Digem f 96x48CK Mode D'emploi page 149

5.6 Setting and Balancing the Analog Output
Depending upon the model, the analog output delivers either a current or a voltage which is depend-
ent upon the display (not the input signal).
The signal range, to which the analog output is balanced at the factory, can be found on the serial
plate. Subsequent adaptation of the output signal to the display range is possible with simple means,
and is described in chap. 5.6 on page 19.
The analog output is adjusted digitally with the help of the keys at the front panel and with a preci-
sion measuring instrument.
Setting the Analog Output Measuring Range
Select scaling for the analog output as follows:
cod3 = x2x (set the second digit of parameter cod3 to 2). Then set parameter ZEro to the display
value, at which the analog output is to deliver 0 mA.
Example: for 0 ... 15000 = 0...20 mA, set ZErO to 0
or for 0 ... 15000 = 4 ... 20 mA, set ZErO to –3750
The F.S. parameter (full scale) is now made available with the P key, for which you will now set the
display value at which the analog output is to deliver its maximum value. F.S. is to be set at 15,000
in the above example. The P key now returns you to the display: cod3 = x2x.
Balancing the Analog Output
Connect a measuring instrument with the required accuracy to the analog output. Now select bal-
ancing for the analog output: cod3 = x3x (set the second digit of parameter cod3 to 3. Pressing the
P key calls up the zero-point parameter CAL_L for the analog output. Now adjust the value, until the
measuring instrument connected to the analog output displays 0 mA. Pressing the P key stores the
value and calls up the final value parameter CAL_H, which now must be adjusted, until the measur-
ing instrument connected to the analog output displays the required maximum value.
Example: for 0... 20 mA, set to 20 mA.
Press the P key. cod3 is displayed again along with a number, whose middle digit is a 3 (x3x). Set
the second digit of parameter cod3 to 1 (cod3 = x1x).
The same procedure is to be followed with an analog output for voltage.
5.7 Switching Hysteresis, Delay Time and Alarm Storage
Switching hysteresis, delay time and alarm storage are set with parameter cod2.
Switching Hysteresis
If a switching hysteresis is to be selected, the last digit of cod2 must be set to xx1. Press the P key.
hYSt and a number (0 ... 127) blink alternately in the display. This number indicates switching hyster-
esis in ± digits. Select the desired digit for switching hysteresis with the keys ⇑ and ⇓. Press the
P key. cod3 and a number blink alternately in the display.
Switching Hysteresis and Alarm Storage
If the measuring instrument requires switching hysteresis, and must also store alarm messages, the
last digit of cod2 must be set to xx4. The above procedure is followed as described for switching
hysteresis.
GOSSEN-METRAWATT 19