APPENDIX E: ALARMS
TD1000C™Oil in Water Monitor
36
TD-1000C Oil In Water Monitor
Operation Manual
PN 101687
REV G
Cell Delay Interval
<8>
1 min
30 sec, 1 min, 2 min, 5 min, 10 min, 20 min, 30 min
Fluor Temp. Comp.
<9>
0%
0 to 9.999%
E.1
Alarm Delay
To avoid unnecessary triggering of alarms, the condition must be in effect for a certain delay period (see
Tables 3
and
4
).
E.2
Alarm Activation
When an alarm is triggered, ALM will blink in the upper left-hand corner of the HOME screen. From any
other screen, when the alarm is first activated, the monitor will return to the HOME screen, where it will
display the ALM message in the upper left-hand corner. Pressing the <ESC> key will display the current
alarm. Take the appropriate action to clear the condition (see
Appendix D—TROUBLESHOOTING
).
When the condition triggering the alarm is cured,
ALM
will disappear from the
HOME
screen.
Alarms can only be cancelled by curing the problem causing the alarm.
E.3
Multiple Alarms
If multiple alarms are triggered, alarms will be listed on the alarm screen when <
ESC
> is pressed from
the
HOME
screen. Alarms are not listed in the order they occur.
Certain alarms will trigger other alarms because a failure in one part of the monitor causes what
appears to be a failure in another part of the monitor. For example: If the LED light source is not
working (F-A), this condition may also trigger the Cell Threshold (C-C) even if there is really nothing
wrong with the cell condition.
E.4 Alarm History
The alarm history can be viewed, by pressing <
ï
> (Left Arrow) from the HOME screen. This shows
which alarms have been activated since the alarm history screen was last cleared. To clear this screen,
press <
Ý
> five times while the alarm history screen is displayed; No Alarm Since Last Reset will be
displayed.
E.5
Notes About Alarms
1. No alarms are monitored when the monitor is turned OFF.
2. Certain alarms are not monitored during calibration (see
Section 5.3
).
3.
During an alarm condition, the 4–20 mA will still send out the fluorescence measurement level.
E.6
System Function Alarms Definitions
LED (F-A):
Indicates the status of the excitation light source. Reports whether the LED is OFF or ON.
If the power is ON and the LED is operational, the diagnostic screen will display
LED: ON
.
No Sample Flow (N-F): If there is a problem with the sample flow lasting for the 10 minute delay period,
a N-F alarm will be displayed. The TD1000C™ is factory configured with a jumper wire between
connections “E” and “F” on the wiring termination connections block. Confirm the jumper wire is
terminated correctly.
Summary of Contents for TD1000C
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