Alarms And Alerts; Concentration Alarms; Alarm Key - Ametek 5000 Instrument Manual

Alarms and Alerts

Three alarm contacts are supplied through relays on the CPU board. All alarms are
defaulted to be fail-safe (normally closed). Alarms can also be set for normally open
operation; refer to Page 4-4: Flags1.
In addition to the three contact alarms, the Computer Operating Properly (COP) or
watchdog alarm activates when normal CPU logic flow is disrupted. Activation of this
alarm indicates loss of power, internal hardware failure, software problems, or extreme
electronic interference. The COP alarm automatically generates a system reset but does
not return the analyzer to factory default software configuration.
Range ID Alert
Analog Range ID contacts are activated when the channel 1 analog output (4–20 mA)
is operating in the higher of its two output ranges. The signal can be used to alert the
user recording equipment that the channel 1 range has changed. Refer to Page 3-12:
Analog Ranges for more detailed information on analog output ranges.

NOTE

Concentration Alarms

Four concentration alarm contacts are supplied on TB11 through relays on the CPU
board. These alarms are defaulted to be fail-safe (normally closed). Alarms can also
be set for normally open operation; refer to page 4-4: Flags1. The concentration alarm
contacts are activated when any one of four sample point concentration values exceed
the programmed setpoint (upper or lower) for that point. . Refer to Page 4-4: Alarm
Flags for more information on linking parameters to alarm contacts.

NOTE

Alarm Key

With normal operation screen displayed, press the Alarm key to call up the menu. Use
up and down arrow keys to scroll through menu items. When desired item is selected,
press Enter and proceed as follows:
Range Alarm can also be configured to alert user recording equipment that the
analog outputs represent calibration data during cal cycle. Refer to Page 4-4, Flags1
for more information.
One Concentration Alarm can be configured to provide a confirmation of
the validity of other analyzer outputs. Refer to Page 4-4, Flags1 for more
information.
Operation 3-11