Ametek 5000 Instrument Manual page 69

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NOTE
4-CONCENTRATION ALERT NOT USED
3-RANGE ALERT
!
CAUTION
Test Alarm Relays Verifies function of alarm contacts. All alarm relays are energized (equal to
1) when test begins. At the "Number Key to Toggle?" prompt, press 2 for
System Alarm contacts, 3 for Range Alert contacts, or 4 for Concentration
Alert contacts. Press
contacts will toggle to de-energized (equal to 0).
Test Valve Relays Verifies function of valve relays. All valve relays are de-energized (equal
to 0) when test begins. At the "Number Key to Toggle?" prompt, enter
the number of the relay to test (1 through 8). Press
or
to 1). Relay 6 has opposite logic. It will be energized when logic=0 and
deenergized when logic=1
Test Watchdog Verifies function of the Computer Operating Properly (watchdog) alarm
by introducing an anomaly in the computer logic which should activate
the alarm. If functioning properly, a system reboot will occur and the
display will return to normal operating screen. If test fails, system will
not reboot. Press
Test Serial Port Verifies the data flow to the RS-485 serial port. The serial port connector
must be removed from the port to run this test. If using the four-wire
serial communication mode, a feedback loop must be provided by con-
necting 2W+/4WTX+ to 4WRX+ and 2W-/4WTX- to 4WRX-. Press
to begin test or
Test RAM Verifies the operation of the computer's random access memory. At "System
Will Not Run - Remove Power Now" prompt, turn off AC source. Wait
at least 20 seconds and turn on power. If RAM test is successful, "RAM
Tested Good - Enter To Continue" will be displayed. Press
information will be displayed for several seconds and then display will
return to normal operation screen. Note that this test is run every time
the analyzer is rebooted.
When running Test Valve Relays or Test Alarm Relays, it is useful to assign display
flag 14, Status of Valve and Alarm Relays, to one of the display lines. Refer to Part
IV: Display Flags for more information on configuring the display. The flagged
display line will read as follows:
2-SYSTEM ALARM
010-Alm 00001010-Vlv
User recording equipment using alarm relays as input must be placed off-line before
running the alarm relays test.
ENTER
to quit. Selected valve contacts will toggle to energized (equal
CANCEL
ENTER
CANCEL
7 & 8-NOT USED
6-CALIBRATE (OFF IN CAL)
ALARM(S) 5-SAMPLE
REFERENCE (OFF IN REF)
to begin test or
CANCEL
to begin test or
CANCEL
to quit.
Troubleshooting and Maintenance 6-3
VALVES
4 1-
SAMPLE SWITCHING RELAYS
4 THROUGH 1, RESPECTIVELY
to quit. Selected alarm
to begin test
ENTER
to quit.
ENTER
; boot up
ENTER