Magnetrol ECHOTEL 960, Installation And Operating Manual

4

MAINTENANCE

Manual Testing

Level Test:

Pressing the “Level Test” pushbutton, will manually test the AS-i output. The level test forces the D2 output and corresponding
LED’s from “1” (wet gap) to “0” (dry gap) data bits or vice versa. The time delay setting is not active during testing.

Fault Test

Pressing the “Fault Test” pushbutton for min 2 s, will manually test the fault output. The fault test simulates a circuit failure and
forces the D3 output to “1” data bits. The time delay setting is not active during testing.

Troubleshooting

Problem

Action/Indication

Solution

No power

No LED’s are ON

Check wiring / input power

Check for malfunction. See below

No change in output between 
wet gap / dry gap

Gap may be plugged by 
solids / dense foam 

Clean the transducer

Gap is out of reach of liquid

Check mounting section on page 2 and
relocate the unit or check blocking
valves.

Chattering output 

Excessive aeration / Turbulence

Introduce a time delay

Check input power

Relocate the switch

Fault LED FLASHES
Diagnostic LED is OFF

A system fault has been detected

Check input power

Press «

Level Test

» pushbutton 

to identify the problem:

*

---  *

: 1 flash (red LED)

Check wiring between transducer and
electronics or replace transducer.

** --- ** : 2 flashes (red LED)

Replace electronics

***  ---  *** : 3 flashes  (red LED)

The unit senses excessive noise
interference. Check shield connection or
eliminate interference from a walktie-
talkie, radio, mechanical vibration from a
nearby source