Pulsafeeder Pulsar ECA NEMA7 - Manual (Page 18)

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4.8 Mechanical Zero Calibration
T HIS PROCEDURE REQUIRES REMOVAL OF THE ENCLOSURE COVER . T HIS SHOULD BE
DONE ONLY IF THE AREA IS KNOWN TO BE NON - HAZARDOUS .
If the ECA was shipped with a pump attached, the mechanical zero calibration was performed at the
factory. Typically this setting will not change during the shipping procedure, but performing a
mechanical zero calibration will assure accurate operation of your controller. If the ECA was
shipped without a pump attached, performing the mechanical zero calibration is mandatory to
successful installation/operation. If the ECA controller does not have a valid zero calibration at
power up, a calibration will automatically be performed. The pump should be running during this
process to ensure an accurate zero position is calibrated. Ensure it is safe to operate the pump during
the procedure.
1. Verify that power to the ECA is off
2. Remove the enclosure cover.
3. Press and hold the BLACK pushbutton
4. Apply power to the ECA. (Plug in the power cord or energize power at the main panel.)
5. A mechanical zero calibration routine will begin. Once the ECA begins the routine you may
release the pushbutton.
6. Allow the calibration routine to complete.
7. Replace the cover (see Section 4.3) and return power to the ECA.
4.9 Factory Re-initialization
T HIS PROCEDURE REQUIRES REMOVAL OF THE ENCLOSURE COVER . T HIS SHOULD BE
DONE ONLY IF THE AREA IS KNOWN TO BE NON - HAZARDOUS .
A Factory Re-initialization restores all EEPROM calibration settings and mode settings to their
factory default values and is typically not required. The user also needs to keep in mind that once the
Factory Re-Initialization is preformed, all user calibrations are erased. This procedure should be
performed only if the user has reason to believe that the internal ECA memory has become corrupted.
A number of factors could cause this including:
1. Disregard of electrostatic precautions during installation,
2. Improper wiring,
3. Voltage surges, spikes, etc.
The condition usually manifests itself with inconsistent or erratic operation. The pump should be
running during this process to ensure an accurate zero position is calibrated. Ensure it is safe to
operate the pump during the procedure.
1. Verify that power to the ECA is off.
2. Remove the enclosure cover.
3. Press and hold both black and white pushbuttons while applying power to the ECA. (Plug
in the power cord or energize power at the main panel.)
4. Release the CAL pushbuttons and the unit is restored to the factory default settings.
5. The unit will automatically perform a new mechanical zero calibration (see Section 4.8)
as part of the Factory Re-Initialization routine.
6. Perform any additional calibration procedures as required.
7. Replace the cover (see Section 4.3) and return power to the ECA.