Magnetrol Echotel 961, Installation And Operating Manual, Page: 4 / 16

4
SET UP AND FUNCTIONS
Set up
High – Low Level Failsafe selection:
In
«
Hi
»
position, the process relay will de-energize (report alarm) when the transducer is wet.
In « Lo » position, the process relay will de-energize (report alarm) when the transducer is dry.
Fault selection:
The echotel 961 is equipped with a malfunction relay separate from the 5A DPDT process relay. The separate or joined oper-
ation of both relays can be selected :
I = in case of a malfunction, only the malfunction relay will de-energize. The process relay will only de-energize in case of a
process alarm
J = in case of a malfunction, both the malfunction relay and the process relay will de-energize
The Echotel 962 is equipped with a malfunction relay separate from the two 5A SPDT process relays. In case of a malfunction,
both the malfunction relay and the process relays will de-energize. The operation of the two process relays can be selected:
LC (level control) = the two relays operate independent and will be de-energized when the corresponding tranducer gap is
immerged/dry (following Hi/Lo setting)
PC (pump control) = the two relays operate in a latched mode, allowing to perform an automatic fill or drain pump control func-
tion in between the 2 transducer gaps. Consult below tables for proper indication and function.
Time delay setting:
Turning the potentiometer clockwise will increase the time delay from 0,5 s to 10 s. Time delay is typically used where turbu-
lence, boiling or splashing can cause false level alarms.
961 - Relay/ LED Indication:
When « WET » (wet LED): OFF = transducer gap is dry / ON = transducer gap is immerged
When « LEVEL » (level LED): ON = relay is energized / OFF = relay de-energized
Echotel 961: Relay/LED indication
Mode Level
Process
relay
« LEVEL» LED
(relay - yellow)
« WET» LED
(gap - yellow)
Error LED indication
Fault (red)
Malfunction
(green)
« Hi »
High level
failsafe
Energized ON OFF
OFF =
Normal
operation
ON =
Malfunction
See
troubleshooting
for malfunction
identification
ON =
Normal
operation
OFF =
Malfunction
See
troubleshooting
for malfunction
identification
De-energized OFF ON
« Lo »
Low level
failsafe
Energized ON ON
De-energized OFF OFF