Led And Relay States For Electrodes - Emerson Mobrey Hydratect 2462 Reference Manual

Reference Manual
24625020, Rev AA
1.6.3

LED and relay states for electrodes

Table 1-2
Hydratect reflect the system state for electrodes.
Note
See "Setting the printed circuit board (PCB) jumpers" on page 23
water-normal and steam-normal settings.
Table 1-2. LED and Relay States for Electrode (Water-Normal Setting)
System state
Electrode in water, no fault
Electrode in steam, no fault
Power supply loss
Electrode contaminated or short-circuited
Connection in electrode sense element is broken
Connection in electrode ground is broken
Connection to ground sense is broken - electrode in water
Connection to ground sense is broken - electrode in steam
Table 1-3. LED and Relay States for Electrode (Steam-Normal Setting)
System state
Electrode in steam, no fault
Electrode in water, no fault
Power supply loss
Electrode contaminated or short-circuited
Connection in electrode sense element is broken
Connection in electrode ground is broken
Connection to ground sense is broken - electrode in water
Connection to ground sense is broken - electrode in steam
Introduction
and Table 1-3 on page 9 summarizes the ways in which the LEDs and relays of
Front panel LEDs
! Steam Water
Off Off On
Off On Off
Off Off Off
On Off On
On Off On
On Off On
On Off On
On On Off
Front panel LEDs
! Steam Water
Off On Off
Off Off On
Off Off Off
On Off On
On Off On
On Off On
On Off On
On On Off
Introduction
March 2017
for information on
Relays
Fault Status normal
Energized Energized
Energized De-energized
De-energized De-energized
De-energized Energized
De-energized Energized
De-energized Energized
De-energized Energized
De-energized De-energized
Relays
Fault Status normal
Energized Energized
Energized De-energized
De-energized De-energized
De-energized De-energized
De-energized De-energized
De-energized De-energized
De-energized De-energized
De-energized Energized
9