Pulsafeeder PULSAblue 3300 Series, Руководство по установке и эксплуатации

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22 Replacing the Fuses
The controller contains a 10A, 250V fuse. The fuse holder is located on the bottom of the
enclosure. It is accessible from the outside of the box. Replacement fuses must be a fast blow
type. If the fuse is blown, the display will be blank and the four power supply lights inside the
controller enclosure will be dark when the unit is connected to power. Refer to the
troubleshooting section of this manual for more information about blank displays.
23 Troubleshooting
23.1 Error Messages
This section discusses some of the more common questions. These notes are not intended to be
all-inclusive
—only to cover the most common situations. If you have other questions or need
support, contact the Pulsafeeder Technical Service Department toll free at (800) 333-6677.
PROBLEM WHAT THIS MEANS CORRECTIVE ACTION
{Alarm Flashing}
“Conductivity: HIGH ALARM”.
Conductivity is too high with
respect to the high alarm setpoint.
1. Check the High Alarm Value.
2.
Check relay setpoints and deadbands.
3.
Check operation of bleed-off valve. Use the
manual relay control to help.
4.
Check blowdown valve is not stuck closed or
the line is restricted.
{Alarm Flashing}
“Conductivity: LOW ALARM”.
Conductivity is too low with respect
to the low alarm setpoint.
1. Check the Low Alarm Value.
2. Check relay setpoints and deadbands.
3. Check blowdown valve is not stuck open.
4. Check that the system is not overflowing.
Water meters not accumulating.
There may be a problem with the
wiring or the reed switch in the
meter may be bad.
For water meters other than the
contacting head type, check the
manufacturer’s user manual for that
particular water meter.
1.
Approximately 24 volts DC should be present
at the input terminal when the water meter
contact is closed. That should change to zero
VDC when the contact opens. Check these
voltages and for correct wiring.
2.
Is the controller configured for your type of
water meter?
{Alarm Flashing}
“FEED SEQUENCE ACTIVE”.
This simply indicates that a Calendar
Timer relay is active.
No action necessary.
Display is blank.
There may be a problem with the
incoming power, the fuse or the
circuit board. Open the front panel
to troubleshoot.
1.
Check the fuse. Replace if blown.
2. Does the unit have power? Verify with volt