Battery Replacement - VWR 89094-746 Manual Del Usuario

Clear the minimum and maximum memory. (See the "Clearing the Minimum/Maximum Memory"
9.
section.)
10. Slide the DISPLAY switch to the MIN MAX position. (See the "Viewing Min/Max Memory" section.)
The alarm limits have been set and the alarm has been enabled. The display has been set to show the
current temperature inside the refrigerator along with the minimum and maximum temperature that has
been achieved inside the refrigerator.
If the temperature inside the refrigerator goes outside the alarm limits (equal to or lower than the low
alarm set point, or equal to or greater than the high alarm set point), the alarm will activate. The
memory will provide a record of the single lowest and highest temperature achieved.
Monitoring Procedure Example
Keep a notebook or spreadsheet as a manual log.
1. At the same time every day, record the following into the manual log:
• Current Date and Time
• Current Temperature Reading
• Minimum Temperature Reading (MIN)
• Maximum Temperature Reading (MAX)
2. Once the above items have been manually recorded, clear the temperature memory. (See the
"Clearing the Minimum/Maximum Memory" section.)
By clearing the memory each day, the minimum and maximum temperature memory will provide a record
of the minimum and maximum temperature that has been achieved inside the refrigerator over the past
24 hour monitoring period. In addition to the alarm, the memory will also allow the user to see if the
temperature inside the refrigerator went outside of the acceptable range.
ALL OPERATIONAL DIFFICULTIES
If this unit does not function properly for any reason, replace the batteries with new high-quality
batteries (see the "Battery Replacement" section). Low battery power can occasionally cause any
number of "apparent" operational difficulties. Replacing the batteries with new fresh batteries will solve
most difficulties.

BATTERY REPLACEMENT

Erratic readings, a faint display, no display, or a battery symbol appearing on the display are all
indications that the batteries must be replaced. Remove the battery cover, located on the back of the
unit, by sliding it down. Remove the exhausted batteries and replace them with two (2) new AAA
VWR Collection Manual ver 1, rel 1 25.04.2017