Ametek 5000 Manual page 37

Relay 6 has opposite logic. It will be energized when logic=0 and de-energized when

logic=1
NOTE
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 Enter to begin test or Cancel to quit.
Test Serial Port
Verifies the data flow to the RS-485 serial port. The serial port connec-
tor must be removed from the port to run this test. If using the four-
wire serial communication mode, you must provide a feedback loop
by connecting 2W+/4WTX+ to 4WRX+ and 2W-/4WTX- to 4WRX-.
Press Enter to begin test or Cancel to quit.
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 Enter. Boot-up information will be displayed for several seconds
and then the display will return to normal operation screen. This test
runs every time the analyzer is rebooted.
Essential Health & Safety Requirements
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