VWR 10048-618 Manual Del Usuario página 5

2. Alarms are enabled for both probe channels P1 and P2 while the switch is set to ON. Alarms are
disabled for both probe channels P1 and P2 while the switch is set to OFF.
3. The alarms cannot be configured to enable individual channels P1 or P2 only.
ALARM EVENT HANDLING
An alarm event will trigger if the alarm is enabled and a temperature reading is recorded below the
low alarm set point or above the high alarm set point.
When an alarm event triggers, the thermometer buzzer will sound, and the LED for the alarming
temperature channel will flash (P1 or P2). If the alarming probe channel is selected, the LCD symbol
will flash signaling which set point was breached (HI ALM or LO ALM).
An active alarm may be cleared by either pressing the CLEAR SILENCE ALM button or disabling the
alarm functionality by sliding the ALARM switch to the OFF position.
Once an alarm is cleared, it will not re-trigger until after the temperature returns to within the alarm
limits.
Note: If an alarm event is triggered and returns to within the alarm limits before being cleared, the
alarm event will remain active until it is cleared.
VIEWING ALARM EVENT MEMORY
1. Slide the PROBE switch to select the probe channel alarm data to be displayed.
2. Slide the DISPLAY switch to the ALARM position. The current temperature, low alarm limit, and
high alarm limit will display.
3. Press the EVENT DISPLAY button. The thermometer will display the alarm limit, date, and time of
the most recent alarm out of range condition. The symbol ALM OUT will display to signal the date
and time displayed indicate when the temperature when out of tolerance.
4. Press the EVENT DISPLAY button a second time. The thermometer will display the alarm limit,
date, and time of the most recent alarm event returning to within the alarm limits. The symbol
ALM IN will display to signal the date and time displayed indicate when the temperature returned
to within tolerance.
5. Press the EVENT DISPLAY button to return to the current temperature display.
No button press for 15 seconds while viewing the alarm events will trigger the thermometer to return
to the current temperature display.
Note: If no alarm event has occurred for the selected probe channel, the thermometer will display
"LLL.LL" on each line.
DATA LOGGING OPERATION
Thermometer will continuously log temperature readings for both probe channels into permanent
memory at user-specified intervals. The total memory capacity is 525,600 data points. Each data
point contains the temperature reading for P1, the temperature reading for P2, and the date and time
of occurrence.
Note: All data stored in Celsius (°C).
The thermometer will also store the most recent 10 alarm events. Each alarm event data point
contains the probe channel which alarmed, the alarm set point that was triggered, the date and time
VWR Collection Manual ver 3, rel 5 30.10.2013