Section 5 - LED Functionality
7
5. LED Functionality
5.1 OK LEDs
Note: Since each channel in the system controls the OK Relay, either channel can cause
a Not OK Relay condition (deenergized relay).
LED Display
A B
Condition
OK Relay Drive
z
OK
z
Channel A and B in operating range.
ON
z
OK
{
{
OK
z
Respective channel A or B transducer in Not
OK condition or bypassed.
OFF
{
OK
{
Monitor
in
self-test,
or both transducers in
Not OK condition or bypassed.
OFF
OK
Flashing at 5 Hz means that an error was
encountered during cyclic test. To read the
error message, see section 19.
ON
OK
OK
z
z
OK
Flashing at 1 Hz means that the transducer
has been Not OK since the last reset.
ON
