Pulsafeeder Pulsar DLC - Manual (Page 42)

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7.1.3 Reverse Acting Analog Input Signal Calibration
To set up a reverse acting application, follow the above Analog Input Calibration procedure with the
following changes to step 4 and step 5.
1. In step 4, when the display requests the minimum analog signal value (0% flow), you should send the
DLC the high analog signal value (i.e., 10mA, 20mA or 5 volts).
INPUT ANALOG MIN
0% = XX.XmA
Send High
(20mA) Signal
The DLC will store this as the 0% analog input signal value. As the analog signal varies, the DLC will
display the fluctuating values. Wait approximately 10 seconds for the signal to stabilize. Press
[ENTER] to accept this as the 0% analog signal value.
2. In step 5, when the display requests the maximum analog signal value (100%), you send the DLC the
low analog signal value (i.e., 0mA, 1mA, 4mA or 1 volt).
INPUT ANALOG MAX
100% = XX.XmA
Send Low
(4mA) Signal
The DLC will store this as the 100% analog input signal value. As the signal varies, the DLC will
display the fluctuating values. Wait approximately 10 seconds for the signal to stabilize. Press
[ENTER] to accept this signal as the 100% analog signal value.
You can confirm the reverse acting input signal calibration by re-entering the Analog Input Calibration
menu. The first screen summarizes your calibration.
0% = 20.0mA
100% = 4.0mA
3. Press [CAL] again to cancel the calibration at this point.