MultiTrode MultiSmart Installation & Operation Manual page 117

MultiSmart Installation & Operation Manual
14.8.6.3 DuoProbe Faults
There are different faults associated with DuoProbe which will be triggered under various conditions.
•
DuoProbe Error
When the analog signal becomes invalid (out of range or less than atmospheric pressure), then a
DuoProbe fault will be raised.
•
High Range Error
A high range error occurs when the DuoProbe level reads beneath the High Range Error Primary SP,
whilst the Probe level reads above the High Range Error Backup SP. These set points can be configured
at:
This fault condition will only be cleared after a complete pump cycle for which no discrepancy was
detected.
•
Low Range Error
If the lowest sensor is uncovered, then Low Range Error will be triggered. This doesn't actually constitute
a fault condition, but simply switches to use the probe level for controlling the pumps in order to protect
the pumps from running dry.
Various limits for these faults can be changed at:
14.8.7 Analog Level Sensor Configuration
Select Analog then press the Config button. The available Analog Inputs are listed in the Inputs box. Use
the Input arrows to highlight the correct input, then press Select.
You can also navigate, using the Input arrows, to the 4-20mA values.
14.8.7.1 Zero and Span the Well
To zero and span the well, perform the following steps:
•
Bring level of the well to the desired "Zero" level
•
Press the Zero button. The current value is read from the Analog Input and entered into the Raw
Min setting box.
•
Bring the level of the well to the desired "Span" level
•
Press the Span button. The current value is read from the Analog Input and entered into the Raw
Max setting box.
•
Press Save to confirm the changes.
NOTE: There is also a parameter under Advanced-Pump Control- Well which is the level that the
pump control module assumes when both primary and backup (if configured) have failed. This
parameter is Input invalid sensor.
14.8.7.2 Options Available for Special Applications
The MultiSmart supports a relative offset around a datum point, which can be set through the control panel.
In the Level Devices section mentioned above, you can specify an offset around a particular datum point
which is to be added to the MultiSmart level input. These scaled set points can be verified using the DNP or
MODBUS points list.
The MultiSmart also supports inverted levels when an analog input is used as the level device. In order to
configure this, in the Advanced menu navigate to:
MultiSmart_IO_Manual_R20 Page 117 of 260