PART THREE - OPERATION
SECTION 6 - TEST/MAINTENANCE
Rev. 1-201
Model F53 Flow Monitor/Totalizer (universal-mount 1/2 DIN)
71
screen confirms that the analyzer is operating properly.
If “FAIL” appears, it may mean:
•
EPROM failure (data is not valid).
•
Scaling card not present or not recognized.
•
Analog-to-digital converter not responding.
•
RAM failure.
•
Internal serial communications failure.
4.
Press
ENTER key
once to view the “STATUS:
SENSOR A OK” screen. Pressing the
ENTER key
three
more times respectively shows the status screens for
Sensor B, Sensor C, and Sensor D. If “FAIL” appears
on any of these status screens, it may indicate:
•
Sensor is disconnected or incorrectly wired.
•
Signal is very noisy or exceeds measuring range.
5.
With the “STATUS: SENSOR D OK” screen displayed,
press
ENTER key
once to view the “STATUS: RLY A”
screen. Subsequent
ENTER key
presses display status
screens for Relay B, Relay C, and Relay D. Status indi-
cations can be:
Status Indication
Meaning
ACTIVE
(Relay energized;
LED is on.)
Control Relay: Measured value exceeds setpoint.
Alarm Relay: Measured value exceeds low or
high alarm point.
Status Relay: Existing system diagnostic
condition has been detected.
INACTIVE
(Relay not energized;
LED is off.)
Control Relay: Measured value does not
exceed setpoint.
Alarm Relay: Measured value does not exceed
low or high alarm point.
Status Relay: Analyzer has not detected system
diagnostic condition.
TIMEOUT
(Relay not energized;
LED is blinking.)
Control Relay: Overfeed timer has timed out;
manually reset it.
NOTE:
TIMEOUT only applies to control relays.
COUNTING
(Relay energized;
LED is on.)
Control Relay: Overfeed timer is counting, but
has not timed out.
NOTE:
COUNTING only applies to control relays.
6.
To end status checking, press
ESC key
or
ENTER key
(display returns to TEST/MAINT top-level menu
screen).
