Pulsafeeder Pulsar DLC - Manual (Page 35)

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6.1.9 Analog Input Calibration.
If you are not using the 0-20mA input to the DLC for control, skip this section. To calibrate the Input
Current you must first correctly wire an external signal source. Refer to Section 5 – Installation: Low
Voltage Input Connections, Analog Input. To perform a calibration, the signal generating device
(e.g., PLC) must be powered up and capable of altering its output from minimum to maximum signal.
6.1.9.1 Analog Input Calibration
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The following is a minimal procedure for calibrating the Analog Input if the 1 – Signal option is to be
used.
1. Press [CAL]. The {CALIBRATE / PUMP FLOW} screen is displayed.
2. Press [UP]. The {CALIBRATE / ANALOG IN} screen is displayed.
3. Press [ENTER]. The {0% = 4.0mA / 100% = 20.0mA} screen is displayed. These values represent the
previous calibration.
4. Press [ENTER]. The {INPUT ANALOG MIN / 0% = XXmA} screen is displayed. Adjust your PLC
to output a minimum signal (i.e., 4.0mA). The DLC display will update as the incoming signal
changes.
5. When the displayed value stabilizes, press [ENTER] to accept it. The {INPUT ANALOG MAX /
100% = XXmA} screen is displayed. Adjust your PLC to output a maximum signal (i.e., 20.0mA).
Again, the DLC display will update with the changing signal.
6. When the displayed value stabilizes, press [ENTER] to accept it. The {INPUT RATIO / 100% =
XX.XmA} screen is displayed.
7. Press [ENTER] to accept the 100% Ratio setting. The {CONFIRM CHANGE? / YES} screen is
displayed.
8. Press [ENTER]. Analog input calibration is now complete.
Refer to Section 7-General Operation: Analog Input Signal Calibration for more detailed instructions
on how to perform Analog Input calibration.
6.2 Wrapping up
Your PULSAR DLC is now commissioned for use. Refer to Section 7 – General Operation for
specific instructions on how to access your DLC's advanced features. Please don't be intimidated by
your DLC, take time to explore and experiment with its features. Remember, you cannot configure the
software in a way that would damage the DLC. Typically, whenever you are about to set a critical
value (e.g., Calibrate Flow), you are always prompted to confirm your change before it takes effect. If
you are ever dissatisfied with the configuration of your DLC, you can always return to the Factory
Defaults by repeating Section 6.1.5.