Page 573 - Med Plaza and Cancer Center

Troubleshooting Guide

Symptom Possible Cause Corrective Action
13)Pressure or vacuum digital a. Incorrect digital display “unit a. Use digital display module test mode
display does not match of measure”. as described on page 41 to check
pressure or vacuum levels in b. Faulty digital display module. current unit of measure (PSI, in Hg,
pipeline. c. Faulty sensor module. kPa, mm Hg). If incorrect,
reprogram unit of measure. Refer to
Set-Up instructions pages 35
through 40.
b. If alarm panel contains another
working digital display module,
remove field wiring connector from
suspect module and connect to
working (test) module. If test
module provides correct reading,
replace faulty digital display module.
c. If test module in step b above also
gives incorrect display, replace faulty
sensor module.

14)Low alarm with -- FF II -- display No pressure or vacuum a. Correct sensor wiring. If sensor is
on digital display module. signal to digital display mounted remotely, verify field wiring
module as a result of: continuity and polarity from sensor
a. Sensor wiring disconnected to digital display module connector
or wiring polarity reversed. pins 5 (+) and 6 (-).
b. Faulty digital display module. b. If alarm panel contains another
c. Faulty sensor module. working digital display module,
remove field wiring connector from
suspect module and connect to
working (test) module. If test
module provides any reading other
than -- FF II -- , replace faulty digital
display module.
c. If test module in step b above also
gives -- FF II --, replace faulty sensor
module.

15)Low alarm with -- FF 22 -- display Pressure or vacuum signal a. Apply appropriate pressure or
on digital display module. to digital display module out vacuum to pipeline.
of measurement range (too b. If alarm panel contains another
low) as a result of: working digital display module,
a. No pressure or vacuum in remove field wiring connector from
pipeline. suspect module and connect to
b. Faulty digital display module. working (test) module. If test
c. Faulty sensor module. module provides any reading other
than
- - FF 22 --, replace faulty digital display
module.
c. If test module in step b above also
gives -- FF 22 --, replace faulty sensor
module.

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Part No. 6-847684-00 Rev. E00